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openbookqa
obqa_02_01978
Reptiles may actually be
[ "grumpy", "brainless", "magical", "pea brained" ]
D
reptiles lay eggs
medmcqa
medmcqa_05_01252
Most accurate and safest method to diagnose viable pregnancy at 6 weeks:(AIIMS May 2015, Nov 20/3)
[ "Doppler assessment of fetal cardiac activity", "USG for fetal cardiac activity", "Urinary Beta-hCG determination", "Per vaginal examination of uterine size corresponding to 6 weeks gestation" ]
B
Ans. b. USG for fetal cardiac activity (Ref: Ultrasound Obstet Gynecol 2011; 37:625-628; Dutta 6/e p68)Most accurate and safest method to diagnose viable pregnancy at 6 weeks is USG for fetal cardiac activity.USG for fetal cardiac activity:At 6 weeks it is routine to detect fetal cardiac activity by ultrasound (and Dop...
sciq
sciq_01_04977
What is the cause of most ocean waves?
[ "Gravity", "tides", "Magnetic pull", "winds" ]
D
Most ocean waves are caused by winds. The size of a wave depends on how fast, how far, and how long the wind blows. Tsunamis are waves caused by earthquakes.
math_qa
mathqa_03_04028
a is the product of each integer from 1 to 50 , inclusive and b = 100 ^ k , where k is an integer . what is the greatest value of k for which y is a factor of a ?
[ "6", "7", "8", "9" ]
A
the number of trailing zeros in the decimal representation of n ! , the factorial of a non - negative integer n , can be determined with this formula : n 5 + n 52 + n 53 + . . . + n 5 k , where k must be chosen such that 5 k ≤ n x = 1 * 2 * 3 . . . . * 50 = 50 ! no . of trailing zeros in 50 ! = 50 / 5 + 50 / 5 ^ 2 = 10...
math_qa
mathqa_03_01836
a cycle is bought for rs . 900 and sold for rs . 1260 , find the gain percent ?
[ "39 %", "20 %", "40 %", "74 %" ]
C
"900 - - - - 360 100 - - - - ? = > 40 % answer : c"
sciq
sciq_01_10763
In terms of scientific investigation, things you notice about an environment using your five senses are called what?
[ "evidence", "patterns", "behaviors", "observations" ]
D
Imagine that you are a scientist. While collecting water samples at a local pond, you notice a frog with five legs instead of four ( Figure below ). As you start to look around, you discover that many of the frogs have extra limbs, extra eyes, or no eyes. One frog even has limbs coming out of its mouth. These are your ...
sciq
sciq_01_09456
Cow manure can have a second life as a source of what gas?
[ "hydrogen", "ethanol", "methane", "freon" ]
C
Cow manure can have a second life as a source of methane gas, which can be converted to electricity. Not only that food scraps can also be converted into green energy.
medmcqa
medmcqa_05_02244
Earliest sign of compament syndrome of leg is:
[ "Tingling or numbness", "Skin mottling", "Pulselessness", "Pain on Passive stretch" ]
D
COMPAMENT SYNDROME There is increase pressure in closed fascial space due to inflammatory reactions due to which muscles fibres undergo ischemia and fibrosis as a long term complication . Compament syndrome of leg - most commonly involves deep posterior compament of leg >deep flexor compament of forearm 5P's of compame...
openbookqa
obqa_02_01706
what celestial body is after the 8th one in this solar system?
[ "earth", "venus", "pluto", "jupiter" ]
C
Pluto is the planet that is ninth closest to the Sun
ARC-Easy
arc_04_00028
When ice cream is left out of a freezer, the ice cream changes from a ___.
[ "solid to a gas", "gas to a liquid", "solid to a liquid", "liquid to a gas" ]
C
null
medmcqa
medmcqa_05_01271
Which of the following is not a feature of dermatomyositis?
[ "'V' sign", "Holster sign", "Pokiloderma", "Groove sign" ]
D
Ans. is 'd' i.e., Groove sign * Groove sign (a depression along the course of a vein or between muscle groups) is seen in deep morphea.Cutaneous signs od dermatomyositisi) Gottron's papules: lilac or violaceous papules on knuckles and dorsa of handsii) Gottron's sign: violaceous erythema with edema over shoulders, arms...
sciq
sciq_01_08412
What do all respiratory diseases affect?
[ "transit exchange process", "gas exchange process", "helium exchange process", "liquid exchange process" ]
B
Reproduction Fungi reproduce sexually and/or asexually. Perfect fungi reproduce both sexually and asexually, while the so-called imperfect fungi reproduce only asexually (by mitosis). In both sexual and asexual reproduction, fungi produce spores that disperse from the parent organism by either floating on the wind or h...
sciq
sciq_01_02542
A diver's air bubbles increase in size as he approaches the surface because what decreases?
[ "water direction", "water weight", "water energy", "water pressure" ]
D
A scuba diver, like the one in Figure below , releases air bubbles when he breathes under water. As he gets closer to the surface of the water, the air bubbles get bigger. Boyle’s law explains why. The pressure of the water decreases as the diver gets closer to the surface. Because the bubbles are under less pressure, ...
openbookqa
obqa_02_04191
if a person looked a their head in a mirror, and moved toward it, what would happen?
[ "the head would start to grow", "the head would explode", "the head would start to shrink", "the head would disappear" ]
A
a mirror reflects light
ARC-Easy
arc_04_01306
Which process will separate the sugar from a mixture of sugar and water?
[ "Stirring the mixture", "Evaporating the water", "Adding more water", "Adding more sugar" ]
B
null
sciq
sciq_01_08996
What is the name of vesicles that are formed by the golgi apparatus?
[ "lymphocytes", "vessels", "capillaries", "lysosomes" ]
D
Lysosomes are vesicles that are formed by the Golgi apparatus. They contain powerful enzymes that could break down (digest) the cell. Lysosomes break down harmful cell products, waste materials, and cellular debris and then force them out of the cell. They also digest invading organisms such as bacteria. Lysosomes also...
openbookqa
obqa_02_04931
If a living being will make it to adulthood, then the most important thing to it will be
[ "talons", "mining", "edibles", "hotels" ]
C
an animal requires nutrients for survival
sciq
sciq_01_10160
How are protozoa that cause giardiasis spread?
[ "food and water", "insects", "lakes and rivers", "starch and water" ]
A
Protozoa that cause giardiasis are spread by contaminated food or water. They live inside the intestine. They may cause abdominal pain, fever, and diarrhea.
math_qa
mathqa_03_00917
the maximum numbers of students among them 781 pens and 710 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is
[ "71", "910", "1001", "1911" ]
A
"olution required number of students . = h . c . f of 781 and 710 . â € ¹ = â € º 71 . answer a"
sciq
sciq_01_09121
What are chemical reactions represented by?
[ "liquid equations", "chemical equations", "nuclear equations", "carbon equations" ]
B
A chemical reaction occurs when some substances change chemically to other substances. Chemical reactions are represented by chemical equations. Consider a simple chemical reaction, the burning of methane. In this reaction, methane (CH 4 ) combines with oxygen (O 2 ) in the air and produces carbon dioxide (CO 2 ) and w...
medmcqa
medmcqa_05_00353
In which condition, Dapagliflozin is used?
[ "Type 1 diabetes", "Breast cancer", "Type 2 diabetes.", "Bladder cancer" ]
C
Type 2 diabetes. DAPAGLIFLOZIN An SGLT-2 inhibitor drug of gliflozin class. Used in type 2 diabetes treatment. MECHANISM OF ACTION: Glucose is reabsorbed completely in proximal tubules by sodium-glucose cotranspoer-2 . Dapagliflozin acts by inhibiting SGLT-2 transpoer.
sciq
sciq_01_00388
Water gains and loses what more slowly than does land, affecting seasonal conditions inland and on the coast?
[ "humidity", "minerals", "volume", "heat" ]
D
Temperature falls from the equator to the poles. Therefore, major temperature zones are based on latitude. They include tropical, temperate, and arctic zones (see Figure below ). However, other factors besides latitude may also influence temperature. For example, land near the ocean may have cooler summers and warmer w...
math_qa
mathqa_03_01986
cole drove from home to work at an average speed of 70 kmh . he then returned home at an average speed of 105 kmh . if the round trip took a total of 2 hours , how many minutes did it take cole to drive to work ?
[ "66", "70", "72", "75" ]
C
"let the distance one way be x time from home to work = x / 70 time from work to home = x / 105 total time = 2 hrs ( x / 70 ) + ( x / 105 ) = 2 solving for x , we get x = 84 time from home to work in minutes = ( 84 ) * 60 / 70 = 72 minutes ans = c"
sciq
sciq_01_01440
What is the force of attraction that holds together positive and negative ions?
[ "magnetic bond", "ionic bond", "electron bond", "integral bond" ]
B
An ionic bond is the force of attraction that holds together positive and negative ions. It forms when atoms of a metallic element give up electrons to atoms of a nonmetallic element. The Figure below shows how this happens.
sciq
sciq_01_10000
Why does water infiltrate the ground?
[ "run-off from flooding", "because soil and rocks are porous", "gravity", "prolonged drought conditions" ]
B
Water infiltrates the ground because soil and rock are porous. Between the grains are pores, or tiny holes. Since water can move through this rock it is permeable. Eventually, the water reaches a layer of rock that is not porous and so is impermeable. Water stops moving downward when it reaches this layer of rock.
medmcqa
medmcqa_05_03302
A 60 year old man who is a known case of coronary artery disease with drug eluting stent placed 1year ago, presents with lump in abdomen and is posted for laparoscopic diagnostic evaluation. He is also hypertensive patient. Which of the following medications should he discontinue prior to procedure
[ "Atenolol", "Clopidogrel", "Simvastatin", "Aspirin" ]
B
Clopidogrel has to be stopped 7 days prior to surgery.
ARC-Challenge
arc_04_02901
A student freezes some orange juice. Which of the following statements best describes how the orange juice is different after it is frozen?
[ "It is a liquid.", "It weighs more.", "It stays in one shape.", "It takes up less space." ]
C
null
math_qa
mathqa_03_01003
a waitress ' s income consists of her salary and tips . during one week , her tips were 2 / 4 of her salary . what fraction of her income for the week came from tips ?
[ "1 / 9", "1 / 6", "1 / 3", "4 / 9" ]
C
"her tips were 2 / 4 of her salary . let ' s say her salary = $ 4 this mean her tips = ( 2 / 4 ) ( $ 4 ) = $ 2 so , her total income = $ 4 + $ 2 = $ 6 what fraction of her income for the week came from tips $ 2 / $ 6 = 1 / 3 = c"
sciq
sciq_01_02780
What are the active transport mechanisms by which molecules enter and leave the cell inside vesicles?
[ "oxidation and exocytosis", "dielectric and exocytosis", "endocytosis and exocytosis", "endocytosis and oxidation" ]
C
Endocytosis and exocytosis are active transport mechanisms in which large molecules enter and leave the cell inside vesicles.
ARC-Challenge
arc_04_03079
In 2005, a team of scientists discovered a photosynthetic bacteria living near the molten lava of a thermal vent ecosystem deep in the Pacific Ocean. The bacteria lived 2400 meters below the surface of the ocean, yet made energy from photosynthesis. Which conclusion best explains the results?
[ "Photosynthesis can occur without light.", "The hydrothermal vent emits usable light.", "High water pressure can power photosynthesis.", "The bacteria used to live at the ocean's surface." ]
B
null
medmcqa
medmcqa_05_03406
Adrenal insufficiency in not associated with -
[ "Hyponatremia", "Hyperkalemia", "Hypoglycemia", "Metabolic alkalosis" ]
D
Ans. is 'd' i.e.. Metabolic alkalosis o Features of adrenal insufficiency (Addison's disease) are :-i) Hypoglycemiaii) Hyperpigmentationii) Hyperkalemiaiv) Hyponatremiav) Hypotensionvi) Metabolic acidosiso Associated features are nausea, vomiting, diarrhea and abdominal cramps.
sciq
sciq_01_10902
A circuit that consists of two loops is called a what?
[ "diverse circuit", "parallel circuit", "complex circuit", "unnatural circuit" ]
B
A circuit that consists of two loops is called a parallel circuit. If one loop of a parallel circuit is interrupted, current can still flow through the other loop.
sciq
sciq_01_01526
The organ systems of the body work together to carry out life processes and maintain what?
[ "freshness", "movement", "consciousness", "homeostasis" ]
D
The organ systems of the body work together to carry out life processes and maintain homeostasis.
sciq
sciq_01_02415
What is the period from earth's origin to the beginning of the phanerozoic eon?
[ "precambrian", "Paleolithic", "anatolian", "Cenozoic" ]
A
For the first 4 billion years of Earth history there is only a little evidence of life. Organisms were tiny and soft and did not fossilize well. But scientists use a variety of ways to figure out what this early life was like. Note that the period from Earth's origin to the beginning of the Phanerozoic is called the Pr...
sciq
sciq_01_03826
Water is polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule, which is described by what term meaning "water-loving"?
[ "hydrophilic", "aqueous", "cytosolic", "hydrophobic" ]
A
One end of each phospholipid molecule is polar, so it has a partial electric charge. Water is also polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule. This end of the phospholipid molecule is described as hydrophilic, which means “water loving. ”.
sciq
sciq_01_00015
Boron only occurs naturally in compounds with what element?
[ "nitrogen", "carbon", "oxygen", "helium" ]
C
Occurrence, Preparation, and Compounds of Boron and Silicon Boron constitutes less than 0.001% by weight of the earth’s crust. In nature, it only occurs in compounds with oxygen. Boron is widely distributed in volcanic regions as boric acid, B(OH)3, and in dry lake regions, including the desert areas of California, as ...
sciq
sciq_01_09553
Silk and cotton are examples of what type of fibers?
[ "mechanical", "artificial", "natural", "coral" ]
C
Many of the fibers that compose the materials for our clothes are naturally occurring. Silk and cotton are examples of natural fibers. Silk is produced by the silkworm, and cotton is grown as a plant. However, several chemical processes are used to treat silk thread so that it is shrink-resistant and will repel water. ...
medmcqa
medmcqa_05_03913
The investigation of choice for renal scarring defect in kidney:
[ "DMSA scan", "DTPA scan.", "Dexa scan", "MCU" ]
A
Ans. (a) DMSA scanRef: Bailey 26th Edition, Pages 1276-1277* IOC for Renal Structure scarring - DMSA* IOC for Congenital PUJ obstruction - DTPA
medmcqa
medmcqa_05_03878
A lady presented to your with a history of recurrent early pregnancy loss. What are the investigations to be ordered:
[ "VDRL", "Toxoplasma serology", "Hemogram\\/blood grouping", "Rubella screening" ]
C
Chromosal anormalities-karyotyping of abous parental karyotyping Uterine causes-TVS ,3D US,MRI hysteroscopic Cervical insufficiency-serial TVS in pregnancy Antiphospholipid antibody syndrome-lupus anticoagulant,anticardiolipin antibodies(refer pgno:153 sheila 2 nd edition)
medmcqa
medmcqa_05_01146
Hepatitis C virus is associated with :
[ "Anti LKM antibody", "Scleroderma", "Cryoglobulinemia", "Polyaeritis nodosa" ]
A
Answer is A (Anti-LKM antibody): Hepatitis C is associated with Anti-LKM antibodies. Hepatitis C may possibly also be associated with cryoglobulinemia but in view of its definite association with anti-LKM antibodies, this is the single best answer. LKM antibodies stand for antibodies against Liver-Kidney microsomes. LK...
openbookqa
obqa_02_04934
What will reflect the most light
[ "A car tire", "A bath towel", "sheet of paper", "silver spoon" ]
D
shiny things reflect light
medmcqa
medmcqa_05_01701
Crystal violet blood agar is used for which bacteria?
[ "Corynebacterium diphtheriae", "Staph aureus", "b-hemolytic streptococcus", "Meningococcus" ]
C
b-hemolytic streptococcus
sciq
sciq_01_02186
Any sound with a frequency above the highest audible frequency is defined as what, a phenomenon useful in medical diagnosis and therapy?
[ "laser", "radiation", "ultrasound", "extrasound" ]
C
Any sound with a frequency above 20,000 Hz (or 20 kHz)—that is, above the highest audible frequency—is defined to be ultrasound. In practice, it is possible to create ultrasound frequencies up to more than a gigahertz. (Higher frequencies are difficult to create; furthermore, they propagate poorly because they are very...
math_qa
mathqa_03_04625
a small table has a length of 12 inches and a breadth of b inches . cubes are placed on the surface of the table so as to cover the entire surface . the maximum side of such cubes is found to be 4 inches . also , a few such tables are arranged to form a square . the minimum length of side possible for such a square is ...
[ "8'", "16'", "24'", "32'" ]
B
from the info that the maximum sides of the cubes is 4 , we know that the gcf of 12 ( = 2 ^ 2 * 3 ) andbis 4 ( = 2 ^ 2 ) , sob = 2 ^ x , where x > = 2 . from the second premise , we know that the lcm of 12 ( 2 ^ 2 * 3 ) andbis 80 ( 2 ^ 4 * 5 ) , sob = 2 ^ 4 or 2 ^ 4 * 5 ( 16 or 80 ) . combining 2 premises shows the ans...
sciq
sciq_01_05269
What is an ion that is in common to both salts in a solution?
[ "native ion", "regular ion", "strong ion", "common ion" ]
D
This situation describes the common ion effect. A common ion is an ion that is in common to both salts in a solution. In the above example, the common ion is Ca 2+ . The common ion effect is a decrease in the solubility of an ionic compound as a result of the addition of a common ion. Adding calcium ion to the saturate...
sciq
sciq_01_10181
Rabies transmission occurs when saliva from an infected mammal enters a wound. the virus travels through neurons in the peripheral nervous system to the central nervous system where it impairs this?
[ "reproduction system", "lung function", "skeletal system", "brain function" ]
D
Figure 21.5 Viruses are classified based on their core genetic material and capsid design. (a) Rabies virus has a single-stranded RNA (ssRNA) core and an enveloped helical capsid, whereas (b) variola virus, the causative agent of smallpox, has a double-stranded DNA (dsDNA) core and a complex capsid. Rabies transmission...
math_qa
mathqa_03_00845
the owner of a furniture shop charges his customer 24 % more than the cost price . if a customer paid rs . 7967 for a computer table , then what was the cost price of the computer table ?
[ "7297", "6425", "2871", "6725" ]
B
"explanation : cp = sp * ( 100 / ( 100 + profit % ) ) = 7967 ( 100 / 124 ) = rs . 6425 . answer : b"
openbookqa
obqa_02_00372
As the earth orbits the sun
[ "various places experience different weather patterns", "weather is consistent world-wide", "weather is always different", "we all have snow" ]
A
Earth orbiting the Sun causes seasons to change
medmcqa
medmcqa_05_00559
Celiac sprue is associated with ?
[ "HLA DQ 1", "HLA DQ2", "HLA DQ3", "HLA DQ4" ]
B
Ans. is 'b' i.e., HLA DQ2
medmcqa
medmcqa_05_02353
Turban epiglottitis is a clinical finding in ?
[ "Tubercular laryngitis", "Tubercular pharyngitis", "Polypoid degeneration of vocal cord", "Subglottic hemangioma" ]
A
Ans. is 'a' i.e., Tubercular laryngitis Laryngeal examination in TB laryngitis Hyperaemia of the vocal cord in its whole extent or confined to posterior pa with impairment of adduction is the first sign. Swelling in the interarytenoid region giving a mammilated appearance. Ulceration of vocal cord giving mouse-nibbled ...
openbookqa
obqa_02_03717
Cactus house a great amount of
[ "favorite fishing holes", "chlorophyll", "bark", "pine cones" ]
B
a plant cell contains chloroplasts
math_qa
mathqa_03_04403
the length of a rectangle is twice its breadth . if its length is decreased by 5 cm and breadth is increased by 5 cm , the area of the rectangle is increased by 75 sq . cm . what is the length of the rectangle ?
[ "18 cm", "16 cm", "40 cm", "20 cm" ]
C
"let bresdth x cm length = 2 x cm new l = ( 2 x - 5 ) cm new breadth = ( x + 5 ) new area = ( 2 x - 5 ) sq cm = ( 2 x - 5 ) ( x + 5 ) = 2 x 2 + 75 x = 20 cm l = 2 x - 2 = 2 * 20 = 40 cm answer c"
math_qa
mathqa_03_00947
a man can do a piece of work in 5 days , but with the help of his son he can do it in 4 days . in what time can the son do it alone ?
[ "2 days", "6 days", "12 days", "20 days" ]
D
"explanation : in this type of question , where we have one person work and together work done . then we can easily get the other person work just by subtracting them . as son ' s one day work = ( 1 / 4 − 1 / 5 ) = ( 5 − 4 ) / 20 = 1 / 20 so son will do whole work in 20 days answer : d"
medmcqa
medmcqa_05_02213
A 25-year-old man with major depression ' discusses the potential benefits and side effects of various antidepressants with his psychiatrist. He clearly indicates that he does not want a medication that could decrease his libido or interfere' with his ability to obtain and maintain an erection. Which of the listed anti...
[ "Bupropion", "Clomipramine", "Amitriptyline", "Sertraline" ]
A
Tricyclic antidepressants such as clomipramine and amitriptyline and SSRIs such as paroxetine and sertraline, as well as MAOIs, can cause erectile dysfunction, delayed ejaculation, anorgasmia, and decreased libido. Buproppion, mirtazapine, trazodone, and nefazodone, in contrast, do not affect sexual functions in a nega...
openbookqa
obqa_02_00255
If you breathe out, especially in the vicinity of clear glass, you may witness
[ "your breath is air", "your breath is dry", "your breath beading up", "your breath smells bad" ]
C
breath contains water vapor
sciq
sciq_01_08467
What happens if a person doesn’t take in enough water to replace the water lost in sweat?
[ "relaxation", "dehydration", "diarrhea", "fatigue" ]
B
The boy in Figure below is taking a water break while playing outside on a hot day. If he doesn’t take in enough water to replace the water lost in sweat, he may become dehydrated. Symptoms of dehydration include dry mouth, headache, and dizziness. Dehydration can be very serious. It can even cause death.
ARC-Easy
arc_04_01522
What is the approximate length of time it takes the Moon to complete one lunar cycle?
[ "14 days", "29 days", "180 days", "365 days" ]
B
null
medmcqa
medmcqa_05_02013
Which of the following DOES NOT depend on insulin for glucose uptake :
[ "Brain", "Cardiac muscles", "Skeletal muscles", "Adipose tissue" ]
A
Option a - Brain does not depend on insulin for glucose uptake Glucose uptake occurs in muscles (cardiac & skeletal) & adipose tissue GLUT-4 , which is insulin dependent. Only GLUT-4 is dependent on Insulin. In brain, GLUT-1 & GLUT-3 are present which are active during fasting state. Insulin always acts in a fed state....
sciq
sciq_01_05057
What field of science seeks to explain how traits are passed on from one generation to the next?
[ "quantum physics", "biochemistry", "zoology", "genetics" ]
D
Genetics is the study of inheritance. The field of genetics seeks to explain how traits are passed on from one generation to the next.
openbookqa
obqa_02_04589
The largest organ of the human body is what?
[ "heart", "brain", "lungs", "outer layer" ]
D
the skin is the largest organ in the human body
sciq
sciq_01_09499
What do the gonadotropins regulate?
[ "mitosis", "temperature", "epigenesis", "gametogenesis" ]
D
math_qa
mathqa_03_00082
find number which is 60 % less than 80 .
[ "18", "32", "28", "26" ]
B
"explanation : 60 % less is 40 % of the given number therefore , 40 % of 80 is 32 . answer : b"
math_qa
mathqa_03_04548
the salaries of a and b together amount to $ 500 . a spends 90 % of his salary and b , 80 % of his . if now , their savings are the same , what is a ' s salary ?
[ "$ 50", "$ 150", "$ 69", "$ 34" ]
D
"let a ' s salary is x b ' s salary = 500 - x ( 100 - 90 ) % of x = ( 100 - 80 ) % of ( 500 - x ) x = $ 34 ( approximately ) answer is d"
math_qa
mathqa_03_03425
nitin ranks 23 th in a class of 60 students . what is rank from the last ?
[ "33", "38", "32", "28" ]
B
explanation : number students behind the nitin in rank = ( 60 - 23 ) = 37 nitin is 38 nd from the last answer : b ) 38
sciq
sciq_01_09903
What is inside the plasma membrane of a prokaryotic cell?
[ "alkaline", "protoplasm", "electron", "cytoplasm" ]
D
Inside the plasma membrane of prokaryotic cells is the cytoplasm. It contains several structures, including ribosomes, a cytoskeleton, and genetic material. Ribosomes are sites where proteins are made. The cytoskeleton helps the cell keeps its shape. The genetic material is usually a single loop of DNA. There may also ...
medmcqa
medmcqa_05_00302
Predominantly, for management of which one of the following resources is the critical path method (CPM) used as one of the health administration techniques-
[ "Money", "Manpower", "Time", "Material" ]
C
The longer path of the network is called critical path .If any activity along the critical path is delayed,the entire project will be delayed (refer pgno:872 park 23 rd edition)
sciq
sciq_01_08862
What do we call the force of attraction or repulsion between electrically charged particles?
[ "mechanical force", "gravitational pull", "electromagnetic force", "chemical force" ]
C
Electromagnetic force is a force of attraction or repulsion between all electrically charged particles. This force is transferred between charged particles of matter by fundamental force-carrying particles called photons. Because of electromagnetic force, particles with opposite charges attract each other and particles...
math_qa
mathqa_03_01272
the ages of two persons differ by 16 years . 6 years ago , the elder one was 3 times as old as the younger one . what are their present ages of the elder person ?
[ "10", "20", "30", "40" ]
C
let present age of the elder person = x and present age of the younger person = x − 16 ( x − 6 ) = 3 ( x − 16 − 6 ) x − 6 = 3 x − 66 2 x = 60 x = 60 / 2 = 30 answer : option c
openbookqa
obqa_02_01883
Woody organisms that produce plants like oak tree seeds and leaves are a source of energy for
[ "decomposed waste", "consumers like deer", "other producers", "producer organisms" ]
B
a producer is a source of energy for consumers
sciq
sciq_01_02331
What moves sediments after they have formed?
[ "migration", "photosynthesis", "perspiration", "erosion" ]
D
Erosion moves sediments after they have formed. The sediments are transported away from the place where they form. There are several agents of erosion. Flowing water moves and deposits sediments. Water erodes far more material than any other erosional agent. Wind is important as an agent of erosion. This is especially ...
sciq
sciq_01_11070
What type of muscle makes up most of the heart?
[ "heart muscle", "chest muscles", "respiratory muscle", "cardiac muscle" ]
D
The heart is a muscular organ in the chest that consists mainly of cardiac muscle. It pumps blood through blood vessels by repeated, rhythmic contractions. Blood flows through four chambers of the heart when it beats. Heartbeat is controlled by electrical signals from special cells within the heart called the pacemaker...
sciq
sciq_01_06220
All of the planets rotate on their axes in the same direction that they move around the sun, except for which one?
[ "uranus", "venus", "Saturn", "Jupiter" ]
A
All of the planets rotate on their axes in the same direction that they move around the Sun. Except for Uranus. Uranus is tilted on its side. Its axis is almost parallel to its orbit. So Uranus rolls along like a bowling ball as it revolves around the Sun. How did Uranus get this way? Scientists think that the planet w...
ARC-Easy
arc_04_01868
The change in the use of one model of the solar system to the use of another model resulted in major changes in science and society. Which two scientists produced the earlier and later models, respectively?
[ "Hooke and Mendel", "Newton and Galileo", "Aristotle and Einstein", "Ptolemy and Copernicus" ]
D
null
openbookqa
obqa_02_03420
Which is likely to have a continuous path of electricity while in use?
[ "a balloon", "a string", "a soda can", "an iPhone" ]
D
a closed circuit has continuous path
openbookqa
obqa_02_00388
Billy's new puppy had floppy ears. That might be because
[ "The puppy's mother had ears that looked the same way", "The puppy was deaf", "The puppy was tired", "The puppy was missing the bones in its ears" ]
A
the shape of body parts is an inherited characteristic
medmcqa
medmcqa_05_01476
Milk is stored before ejection in
[ "Lactiferous ducts", "Alveoli", "Nipple", "Stroma" ]
A
Lactiferous ducts one of the ducts, numbering 15-20, which drain the lobes of the mammary gland; they open at the nipple.Ref: Ganong&;s review of medical physiology;24th edition; page no:-416
medmcqa
medmcqa_05_04951
Which of the following interventions is not recommended in active management of IIIrd stage of labour?
[ "Administration of Uterotonic within 1 minute of delivery", "Immediate clamping cutting and ligation of cord", "General massage of uterus", "Controlled cord traction" ]
B
The clinical course in the third stage of labour is inclusive of the following: Separation of the placenta Descent of the placenta Expulsion of the placenta The expulsion of the fetus followed by the clamping and ligature of the cord marks the end of second stage of labour. Thus the clamping and ligature of the cord is...
ARC-Easy
arc_04_01789
A modern theory of the origin of the universe proposes that the first atoms formed were primarily atoms of which element?
[ "iron", "carbon", "helium", "hydrogen" ]
D
null
sciq
sciq_01_08721
What do we call the locations where electrons are likely to be located around the nucleus?
[ "cores", "isotopes", "radials", "orbitals" ]
D
The locations where electrons are likely to be located around the nucleus are known as orbitals. Each orbital represents a three-dimensional region in which a given electron is most likely to be found.
ARC-Challenge
arc_04_02895
Mara planted six pots of lettuce seeds. She placed three pots in a sunny area and three pots in a shaded area. She watered each pot the same and measured the growth of the lettuce. After Mara analyzes her data, what conclusion will it help her to make?
[ "When to plant her lettuce", "Where to plant her lettuce", "How much water to give lettuce", "How many lettuce plants to grow" ]
B
null
math_qa
mathqa_03_03240
the true discount on a bill of rs . 2660 is rs . 360 . what is the banker ' s discount ?
[ "rs . 432", "rs . 422", "rs . 416", "rs . 442" ]
C
"explanation : f = rs . 2660 td = rs . 360 pw = f - td = 2660 - 360 = rs . 2300 true discount is the simple interest on the present value for unexpired time = > simple interest on rs . 2300 for unexpired time = rs . 360 banker ' s discount is the simple interest on the face value of the bill for unexpired time = simple...
sciq
sciq_01_07801
As the temperature of water decreases what happens to the speed of the water molecules?
[ "begin to boil", "evaporate", "slow down", "move faster" ]
C
In the liquid state, the hydrogen bonds of water can break and reform as the molecules flow from one place to another. When water is cooled, the molecules begin to slow down. Eventually, when water is frozen to ice, the hydrogen bonds become permanent and form a very specific network (see Figure below ).
math_qa
mathqa_03_03318
what is the sum of all possible solutions to | x - 3 | ^ 2 + | x - 3 | = 30 ?
[ "4", "5", "3", "2" ]
B
"denote | x - 3 | as y : y ^ 2 + y = 30 - - > y = - 6 or y = 5 . discard the first solution since y = | x - 3 | , so it ' s an absolute value and thus can not be negative . y = | x - 3 | = 5 - - > x = 8 or x = - 3 . the sum = 5 . answer : b ."
math_qa
mathqa_03_00724
two brother x and y appeared for an exam . the probability of selection of x is 1 / 3 and that of b is 2 / 5 . find the probability that both of them are selected .
[ "2 / 69", "2 / 15", "2 / 63", "2 / 29" ]
B
"explanation : let a be the event that x is selected and b is the event that y is selected . p ( a ) = 1 / 3 , p ( b ) = 2 / 5 . let c be the event that both are selected . p ( c ) = p ( a ) ã — p ( b ) as a and b are independent events : = ( 1 / 3 ) ã — ( 2 / 5 ) = 2 / 15 answer : b ) 2 / 15"
medmcqa
medmcqa_05_03768
Which of the following aery is NOT ligated in a case of epistaxis?
[ "Anterior ethmoidal aery", "Maxillary aery", "Internal carotid aery", "External carotid aery" ]
C
Internal carotid aery shouldn't be ligated in epistaxis due to risk of development of collateral blood flow into pseudoaneurysm leading to recurrent epistaxis. Aeries which can be ligated in a case of epistaxis are: Anterior and posterior ethmoidal aery, sphenopalatine aery (SPA). More rarely the internal maxillary aer...
sciq
sciq_01_01222
What term is used to describe how fast a chemical reaction occurs?
[ "reaction rate", "response time", "catalysis", "velocity" ]
A
How fast a chemical reaction occurs is called the reaction rate . Several factors affect the rate of a given chemical reaction. They include the:.
ARC-Easy
arc_04_00689
Researchers are developing new types of crop plants with desirable characteristics such as disease resistance and drought tolerance. Crossing plants so that the next generation will express desirable traits is best described as
[ "selective breeding.", "natural selection.", "genetic engineering.", "gene sequencing." ]
A
null
math_qa
mathqa_03_03524
according to the direction on a can of frozen orange juice concentrate is to be mixed with 3 cans of water to make orange juice . how many 15 - ounce cans of the concentrate are required to prepare 200 6 - ounce servings of orange juice ?
[ "25", "34", "50", "20" ]
D
"orange juice concentrate : water : : 1 : 3 total quantity of orange juice = 200 * 6 = 1200 oz so orange juice concentrate : water : : 300 oz : 900 oz no . of 15 oz can = 300 oz / 15 oz = 20 answer d , 20 cans"
math_qa
mathqa_03_00757
the average weight of 16 girls in a class is 50.25 kg and that of the remaining 8 girls is 45.15 kg . find the average weights of all the girls in the class .
[ "a", "b", "c", "d" ]
A
required average = ( 50.25 x 16 + 45.15 x 8 ) / ( 16 + 8 ) = ( 804 + 361.20 ) / 24 = 1165.20 / 24 = 48.55 kg answer is a
sciq
sciq_01_03050
Which division of the autonomic nervous system controls processes like digestion, heartbeat, and breathing?
[ "synaptic", "parasympathetic", "dopaminergic", "endocrine" ]
B
The parasympathetic division controls internal organs and glands during the rest of the time. It controls processes like digestion, heartbeat, and breathing when there is not an emergency.
math_qa
mathqa_03_03572
a is two years older than b who is twice as old as c . if the total of the ages of a , b and c be 42 , the how old is b ?
[ "16", "9", "8", "11" ]
A
"explanation : let c ' s age be x years . then , b ' s age = 2 x years . a ' s age = ( 2 x + 2 ) years . ( 2 x + 2 ) + 2 x + x = 42 ⇒ 5 x = 40 ⇒ x = 8 . hence , b ' s age = 2 x = 16 years . answer : a"
ARC-Challenge
arc_04_03078
Some businesses offer customers the option to pay for merchandise using their fingerprints as identification. Which of the following would most benefit customers that use this new technology?
[ "cost of product is reduced", "protection of private information", "ability to track customer preferences", "funds would be credited immediately" ]
B
null
openbookqa
obqa_02_01857
A rainy day leaves a lot of moisture in the air and rainbows occur
[ "when light is burned", "when light proceeds through", "when light is black", "when light is dim" ]
B
refracting sunlight causes light to split into different colors
math_qa
mathqa_03_00741
find the simple interest on $ 6000 at 15 % per annum for 9 months ?
[ "$ 492", "$ 512", "$ 675", "$ 745" ]
C
"p = $ 6000 r = 15 % t = 9 / 12 years = 3 / 4 years s . i . = p * r * t / 100 = 6000 * 15 * 3 / 400 = $ 675 answer is c"
sciq
sciq_01_08950
Heat expansion is a result of the increase of what type of energy, exhibited by molecules bumping together?
[ "radioactivity", "harmonic energy", "light energy", "kinetic energy" ]
D
Heat expansion is a result of the increase of kinetic energy of the molecules. As their movement increases, they bump into each other more and the material slightly expands as a result. Most materials expand with heat. Water is a particularly interesting substance in that it contracts as its temperature increases from ...
math_qa
mathqa_03_03810
a couple decides to have 3 children . if they succeed in having 3 children and each child is equally likely to be a boy or a girl , what is the probability that they will have exactly 1 girl and 2 boys ?
[ "3 / 4", "1 / 2", "5 / 8", "1" ]
C
sample space = 2 ^ 3 = 8 favourable events = { bgg } , { bgb } , { bbb } , { ggg } , { gbg } , probability = 5 / 8 = 5 / 8 . ans ( c ) .
ARC-Challenge
arc_04_02333
Why can steam be used to cook food?
[ "Steam does work on objects.", "Steam is a form of water.", "Steam can transfer heat to cooler objects.", "Steam is able to move through small spaces." ]
C
null
math_qa
mathqa_03_03356
a dishonest dealer professes to sell goods at the cost price but uses a weight of 850 grams per kg , what is his percent ?
[ "25 %", "17 %", "29 %", "55 %" ]
B
"850 - - - 150 100 - - - ? = > 17.64 % answer : b"
sciq
sciq_01_09138
What are the largest known proteins called?
[ "aminos", "sporozoans", "titins", "obscures" ]
C
A protein is an organic compound made up of small molecules called amino acids . There are 20 different amino acids commonly found in the proteins of living organisms. Small proteins may contain just a few hundred amino acids, whereas large proteins may contain thousands of amino acids. The largest known proteins are t...
ARC-Challenge
arc_04_02279
Las Vegas has access to renewable resources for generation of electrical power, which includes hydroelectric power. Which of these energy resources is renewable and available to generate electricity in Las Vegas without degrading the environment?
[ "petroleum", "geothermal", "nuclear", "solar" ]
D
null