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sciq
sciq_01_03771
What two cycles make up the female reproductive cycle?
[ "cervical and menstrual", "ovarian and cesarean", "ovarian and menstrual", "digestive and menstrual" ]
C
Female Hormones The control of reproduction in females is more complex. The female reproductive cycle is divided into the ovarian cycle and the menstrual cycle. The ovarian cycle governs the preparation of endocrine tissues and release of eggs, while the menstrual cycle governs the preparation and maintenance of the ut...
medmcqa
medmcqa_05_03158
Commonest site of otosclerosis is
[ "Round window", "Oval window", "Utricle", "Ossicles" ]
B
The most common type of otosclerosis is stapedial otosclerosis. Stapedial otosclerosis causes stapes fixation and conductive deafness is the most common variety. Here the lesion mainly stas just in front of the oval window in an area called "fissula ante fenestram". This is the site of predilection( anterior focus). Th...
medmcqa
medmcqa_05_01044
Classification system of bone tumors is -
[ "Enneking", "Manchester", "Edmonton", "TNM" ]
A
According to Ennecking staging of benign tumors Stage 1-latent Stage2-active Stage3-inactive REF : MAHESWARI 9TH ED
math_qa
mathqa_03_00850
the least number , which when divided by 12 , 15 , 20 and 63 leaves in each case a remainder of 8 is :
[ "448", "488", "542", "1268" ]
D
"required number = ( l . c . m . of 12 , 15 , 20 , 63 ) + 8 = 1260 + 8 = 1268 . answer : d"
sciq
sciq_01_06749
Limestone is insoluble in water, so what can dissolve it?
[ "acid", "dioxide", "oxygen", "calcium" ]
A
An element is a substance that cannot be broken down into chemically simpler components. Compounds can be broken down into simpler substances.
medmcqa
medmcqa_05_03862
Triglyceride content is lowest in:(1998)
[ "HDL", "LDL", "VLDL", "Chylomicrons" ]
A
A Harper, 26th ed, p. 206, Table (25-1) & 25th ed, p. 269
openbookqa
obqa_02_00668
A calf that dies will eventually
[ "disintegrate", "fall", "starve", "wrinkle" ]
A
dead organisms decay
math_qa
mathqa_03_03175
john was thrice as old as tom 6 years ago . john will be 9 / 7 times as old as tom in 6 years . how old is tom today ?
[ "6", "8", "10", "12" ]
B
"j - 6 = 3 ( t - 6 ) , so j = 3 t - 12 j + 6 = 9 / 7 * ( t + 6 ) 7 j + 42 = 9 t + 54 7 ( 3 t - 12 ) + 42 = 9 t + 54 12 t = 96 t = 8 the answer is b ."
sciq
sciq_01_01364
What occurs in a formerly inhabited area that was disturbed?
[ "secondary succession", "natural selection", "spontaneous mutation", "mass extinction" ]
A
Secondary succession occurs in a formerly inhabited area that was disturbed. Soil is already in place, so pioneer species include small plants such as grasses.
sciq
sciq_01_00016
What organ systems link exchange surfaces with cells throughout the body?
[ "pulmonary", "vascular", "circulatory", "nervous" ]
C
42.1 Circulatory systems link exchange surfaces with cells throughout the body.
sciq
sciq_01_01726
Who first proposed that earth is a magnet?
[ "Isaac Newton", "Marconi", "Albert Einstein", "william gilbert" ]
D
The molar mass of any substance is the mass in grams of one mole of representative particles of that substance. The representative particles can be atoms, molecules, or formula units of ionic compounds. This relationship is frequently used in the laboratory. Suppose that for a certain experiment you need 3.00 moles of ...
openbookqa
obqa_02_01475
Locusts historically always affect crops
[ "in the sky", "disadvantageously", "near water", "positively" ]
B
insects can have a negative impact on crops
math_qa
mathqa_03_03991
the population of a town is 10000 . it increases annually at the rate of 20 % p . a . what will be its population after 3 years ?
[ "14300", "17280", "14500", "14600" ]
B
"formula : ( after = 100 denominator ago = 100 numerator ) 10000 × 120 / 100 ^ 3 = 17280 b )"
medmcqa
medmcqa_05_04060
Dinoprostone is -
[ "PG El", "PGE2", "PGF2 alpha", "PG 12" ]
B
Ans. is 'b' i.e., PG E2 Dinoprostone (PG E2)* For the purpose of cervical ripening and induction, dinoprostone gel (PGE2 = 0.5 mg), tablets and dinoprostone inserts (10 mg) are available.* The gel can be repeated every 6 hourly for 2-3 doses as required.
math_qa
mathqa_03_04951
sakshi can do a piece of work in 20 days . tanya is 25 % more efficient than sakshi . the number of days taken by tanya to do the same piece of work is :
[ "15", "16", "22", "18" ]
B
"work done by sakshi in 1 day = 1 / 20 since tanya is 25 % efficient than sakshi , she completes 25 % more work in a day than sakshi . = > tanya ' s 1 day work = 1 / 20 + 1 / 20 * 25 / 100 = 1 / 16 so time taken by tanya to finish the work = 16 days answer : b"
openbookqa
obqa_02_01576
A way that scientists determined whether previously known planets truly are still such is based on whether
[ "they complete rotations", "they have atmosphere", "they are glowing", "they have life" ]
A
pluto has not cleared its orbit
sciq
sciq_01_03291
What is the name for areas where there is overlap between closely related species?
[ "extinction zones", "hybrid zones", "mono zones", "gap zones" ]
B
18.3 Reconnection and Rates of Speciation Speciation is not a precise division: overlap between closely related species can occur in areas called hybrid zones. Organisms reproduce with other similar organisms. The fitness of these hybrid offspring can affect the evolutionary path of the two species. Scientists propose ...
medmcqa
medmcqa_05_00518
On USG finding of cystic hygroma in fetus is suggestive of
[ "Down's syndrome", "Marphan's syndrome", "Turner's syndrome", "Klinfelter's syndrome" ]
C
C i.e. Turner's Syndrome
medmcqa
medmcqa_05_03886
An unconcious patient of head injury comes in casualty. On examination shows raised intracranial pressure. Which anesthetic agent is contraindicated:
[ "Thiopentone", "Propofol", "Ketamine", "Etomidate" ]
C
C i.e. Ketamine Ketamine causes increase in all pressure i.e. intracranial, intraocular, intragastric and intravascular (Blood) pressure. So it is not used in raised ICT/IOT & Hypeension as it may increase the pressure to morbid levels.
math_qa
mathqa_03_03020
in a college the ratio of the numbers of boys to the girls is 8 : 5 . if there are 175 girls , the total number of students in the college is ?
[ "562", "356", "455", "416" ]
C
"let the number of boys and girls be 8 x and 5 x then , 5 x = 175 x = 35 total number of students = 13 x = 13 * 35 = 455 answer is c"
medmcqa
medmcqa_05_01352
Which of the following increases the susceptibility to coronary aery disease?
[ "Nephrotic syndrome", "Von willebrand disease", "Type V hyperlipoproteinemia", "Systemic lupus erythematosus" ]
A
Patients with nephrotic syndrome develop hyperlipidemia and hypercholesterolemia, secondary to increased hepatic synthesis of lipoproteins and decreased clearance of lipoproteins from the circulation. Hyperlipidemia in these patients also cause systemic atherosclerosis. Marked reduction of HDL receptor protein expressi...
math_qa
mathqa_03_04286
a chemist mixes one liter of pure water with x liters of a 60 % salt solution , and the resulting mixture is a 10 % salt solution . what is the value of x ?
[ "1 / 5", "1 / 3", "1 / 2", "1" ]
A
"concentration of salt in pure solution = 0 concentration of salt in salt solution = 60 % concentration of salt in the mixed solution = 10 % the pure solution and the salt solution is mixed in the ratio of - - > ( 60 - 10 ) / ( 10 - 0 ) = 5 / 1 1 / x = 5 / 1 x = 1 / 5 answer : a"
sciq
sciq_01_11484
How many sets of chromosomes does each somatic cell have?
[ "six", "four", "two", "one" ]
C
Each human somatic cell (a body cell, or every cell other than a gamete) normally has two sets of chromosomes, one set inherited from each parent. These cells are said to have a diploid number of chromosomes. Each set contains 23 chromosomes, for a total of 46 chromosomes. Each chromosome differs in size, from about 25...
sciq
sciq_01_06145
Lysosomes have what type of enzymes that break down old molecules into parts that can be recycled?
[ "corrosive", "bacterial", "digestive", "probiotics" ]
C
Lysosomes are like the recycling trucks that carry waste away from the factory. Lysosomes have digestive enzymes that break down old molecules into parts that can be recycled.
ARC-Easy
arc_04_01388
Paco throws a ball. What force pulls the ball down toward the ground?
[ "friction", "gravity", "inertia", "momentum" ]
B
null
sciq
sciq_01_11011
What is the skin of most reptiles covered with?
[ "pores", "cuticle", "hairs", "scales" ]
D
Reptiles have several adaptations for living on dry land that amphibians lack. For example, as shown in Figure below , the skin of most reptiles is covered with scales. The scales are made of very tough keratin, and they protect reptiles from injury, and also prevent them from losing water.
openbookqa
obqa_02_00314
A kid having a preference is something like
[ "he gets bored easily", "he likes having dinner", "he hates eating peas", "he likes blonde girls" ]
D
preferences are generally learned characteristics
ARC-Challenge
arc_04_02444
Which of the following statements best explains why it is warmer at the equator than at the North Pole?
[ "The equator has a larger area than the North Pole.", "The equator is closer to the Sun than the North Pole.", "The equator receives more direct sunlight than the North Pole.", "The equator has more hours of daylight per year than the North Pole." ]
C
null
openbookqa
obqa_02_01554
Tectonic expression can give massive amounts of data to a
[ "seismograph", "lie detector", "geiger counter", "glass of water" ]
A
a seismograph is a kind of tool for measuring the size of an earthquake
openbookqa
obqa_02_00042
I can use electrical energy to
[ "Run a mile", "Swim", "bake a bagel", "Rock climb" ]
C
a doorbell converts electrical energy into sound
math_qa
mathqa_03_02435
if two integers x , y ( x > y ) are selected from - 5 to 6 ( inclusive ) , how many cases are there ?
[ "62", "66", "70", "74" ]
B
"there are 12 integers from - 5 to 6 inclusive . 12 c 2 = 66 . the answer is b ."
sciq
sciq_01_04628
Animals that live in groups with other members of their species are called what?
[ "grouping animals", "available animals", "aggressive animals", "social animals" ]
D
Without communication, animals would not be able to live together in groups. Animals that live in groups with other members of their species are called social animals. Social animals include many species of insects, birds, and mammals. Specific examples are ants, bees, crows, wolves, and human beings.
sciq
sciq_01_07179
What is the name for a substance that can be used to follow the pathway of that substance through some structure?
[ "gel", "solution", "tracker", "tracer" ]
D
Learn some applications of radioactivity. Radioactive isotopes have a variety of applications. Generally, however, they are useful because either we can detect their radioactivity or we can use the energy they release. Radioactive isotopes are effective tracers because their radioactivity is easy to detect. A tracer is...
ARC-Easy
arc_04_01391
The Greek philosopher Aristotle described matter with the phrase "unable to be divided." The modern concept that grew from Aristotle's idea is the
[ "atom.", "proton.", "neutron.", "electron." ]
A
null
sciq
sciq_01_07489
What is a stream of moving water that flows through the ocean?
[ "tidal wave", "creek", "current", "waterfall" ]
C
Another way ocean water moves is in currents. A current is a stream of moving water that flows through the ocean. Surface currents are caused mainly by winds, but not the winds that blow and change each day. Surface currents are caused by the major wind belts that blow in the same direction all the time.
medmcqa
medmcqa_05_01369
What is the most common site for extrapulmonary tuberculosis is?
[ "Lymph nodes", "Pleura", "GIT", "Brain" ]
A
Ans. is 'a' i.e., Lymph nodes * Most common site of extrapulmonary tuberculosis is lymph nodes.* Other extrapulmonary sites of involvement are pleura, pericardium, meninges, brain, genitourinary system, GIT and skeletal system.
sciq
sciq_01_01469
What is the skeleton of the cell?
[ "cytoplasm", "cytoskeleton", "cell wall", "cell membrane" ]
B
The cytoplasm consists of watery cytosol and cell structures. It has several functions. The cytoskeleton is the “skeleton” of the cell. It helps the cell keep its shape.
sciq
sciq_01_05405
What is another environmental benefit of conserving resources?
[ "more jobs", "warmer temperatures", "lower prices", "less trash" ]
D
When we conserve resources, we also cut down on the trash we produce. Americans throw out 340 million tons of trash each year. We throw out 2.5 million plastic bottles alone—every hour! Most of what we throw out ends up in landfills ( Figure below ). In a landfill, all those plastic bottles take hundreds of years to br...
math_qa
mathqa_03_00837
working alone , printers x , y , and z can do a certain printing job , consisting of a large number of pages , in 12 , 10 , and 20 hours , respectively . what is the ratio of the time it takes printer x to do the job , working alone at its rate , to the time it takes printers y and z to do the job , working together at...
[ "5 / 3", "7 / 4", "9 / 5", "11 / 6" ]
C
"the time it takes printer x is 12 hours . the combined rate of y and z is 1 / 10 + 1 / 20 = 3 / 20 the time it takes y and z is 20 / 3 the ratio of times is 12 / ( 20 / 3 ) = 3 * 12 / 20 = 9 / 5 the answer is c ."
sciq
sciq_01_03670
In the human ear, sound waves cause the stapes to press against what?
[ "shaped window", "oval window", "yellow window", "Idea Window" ]
B
Figure 36.14 In the human ear, sound waves cause the stapes to press against the oval window. Vibrations travel up the fluid-filled interior of the cochlea. The basilar membrane that lines the cochlea gets continuously thinner toward the apex of the cochlea. Different thicknesses of membrane vibrate in response to diff...
sciq
sciq_01_11180
What is the common term for water in its solid state?
[ "precipitation", "sea", "vapor", "ice" ]
D
medmcqa
medmcqa_05_03698
Which of the following is a prokinetic drug with no dopamine antagonism: March 2005
[ "Chlorpromazine", "Metaclopramide", "Domperidone", "Mosapride" ]
D
Ans. D: Mosapride Metoclopramide is a dopaminergic antagonist and peripheral serotonin receptor antagonist with GI and CNS effects Cisapride is chemically related to metoclopramide, but unlike metoclopramide, it does not cross the blood-brain barrier or doesn't have antidopaminergic effects. Therefore, it does not have...
math_qa
mathqa_03_04694
steve traveled the first 2 hours of his journey at 50 mph and the last 3 hours of his journey at 80 mph . what is his average speed of travel for the entire journey ?
[ "68 mph", "56.67 mph", "60 mph", "64 mph" ]
A
"average speed = total distance / total time = ( 50 * 2 + 80 * 3 ) / ( 2 + 3 ) = 68 ans : a"
medmcqa
medmcqa_05_02097
Posterior to transverse pericardial sinus-
[ "Aorta", "Pulmonarytrunk", "SVC", "Left atrium" ]
C
Ans. is 'c' i.e., SVC Pericardial sinuseso These are parts of pericardial cavity,o The pericardial sinuses areTransverse pericardial sinusIf lies between arterial and venous sleeves of pericardial reflection and connects right and left halves of pericardial cavity with each other.It is boundedAnteriorly by A seen ding ...
sciq
sciq_01_10731
What is the ability to be attracted by a magnet and to act as a magnet?
[ "polarization", "magnetism", "electrical attraction", "inertia" ]
B
Magnetism is the ability to be attracted by a magnet and to act as a magnet. Only ferromagnetic materials have this property. They include iron, cobalt, and nickel. When these materials are magnetized, they become temporary or permanent magnets. Magnetite is a natural permanent magnet.
math_qa
mathqa_03_02852
in the graduating class of a certain college , 48 percent of the students are male and 52 percent are female . in this class 50 percent of the male and 20 percent of the female students are 25 years old or older . if one student in the class is randomly selected , approximately what is the probability that he or she wi...
[ "a", "b", "c", "d" ]
B
percent of students who are 25 years old or older is 0.5 * 48 + 0.2 * 52 = ~ 34 , so percent of people who are less than 25 years old is 100 - 3 = 66 . answer : b .
medmcqa
medmcqa_05_03364
Largest bursa of the body is
[ "Ilio-psoas bursa", "Suprapatellar bursa", "Subcoracoid bursa", "Olecranon bursa" ]
A
The iliopsaos bursa is the largest bursa of the human body and is bilaterally present in 98% of adults.
openbookqa
obqa_02_01068
If something breathes, it
[ "uses unusable byproduct", "lives in trash", "scraps unusable byproduct", "moves around frequently" ]
C
all living things eliminate waste
sciq
sciq_01_06245
The measure of magnetic fields is named after a serbian physicist. what is his name?
[ "Niels Bohr", "Carl Sagan", "nikola tesla", "Albert Einstein" ]
C
For static electric charges, the electromagnetic force is manifested by the Coulomb electric force alone. If charges are moving, an additional force emerges, called magnetism. The century realization that electricity and magnetism are dual aspects of the same force completely changed our understanding of the world we l...
math_qa
mathqa_03_01652
a certain airline ' s fleet consisted of 100 type a planes at the beginning of 1980 . at the end of each year , starting with 1980 , the airline retired 3 of the type a planes and acquired 4 new type b plans . how many years did it take before the number of type a planes left in the airline ' s fleet was less than 50 p...
[ "14", "15", "16", "17" ]
B
"let x be the number of years . 4 x > 100 - 3 x 7 x > 100 x > 14 + 2 / 7 the answer is b ."
sciq
sciq_01_07602
Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments?
[ "uterus", "intestine", "sphincter", "hamstring" ]
C
medmcqa
medmcqa_05_03904
Gonadotropins are :
[ "Proteins", "Glycoproteins", "Phospholipids", "Polysaccharides" ]
B
Glycoproteins
medmcqa
medmcqa_05_01464
Staph aureus causes -
[ "Erythrasma", "Chancroid", "Acne vulgaris", "Bullous impetigo" ]
D
Option 1 Erythrasma Cause :Corynebacterium minutissimum Appears in the folds of the skin In warm or humid climates Option 2 Chancroid/soft sore Cause : H. Ducreyi Painful lymph node, tender non-indurated and bleeding genital ulcer. Option 3 S. aureus doesn't cause acne vulgaris. Option 4 lmpetigo- 2 types :- i) Non-bul...
math_qa
mathqa_03_03565
a machine , working at a constant rate , manufactures 72 staplers in 28 minutes . how many staplers does it make in 1 hr 52 min ?
[ "268", "262", "300", "288" ]
D
"change 1 hr 52 min to 112 min . for this , we need to set up a simple proportion of staplers per time 72 / 28 = s / 112 . the absolutely worst thing you could do at this point in the problem is to cross - multiply . that would be a supremely unstrategic move . we can cancel the common factor of 28 in the two denominat...
openbookqa
obqa_02_02360
A bear has two cubs that she keeps in her den because outside the den a winter storm is raging. One cub crawls outside, the other stays inside, with the mother. The cub that goes outside, compared to the cub inside, is
[ "warmer", "in the den", "unlikely to survive", "closer to mother" ]
C
an animal usually requires a warm body temperature for survival
openbookqa
obqa_02_00072
which of these can be considered a stage in the water cycle?
[ "all of these", "the combination of nails and hammers", "the presence of H20", "the combination of chlorine and gas" ]
C
condensation is a stage in the water cycle process
medmcqa
medmcqa_05_03574
Commonest ocular sign of hypothyroidism is
[ "Cataract", "Glaucoma", "Band-shaped keratopathy", "Uveitis" ]
A
Cataract - hypothyroidism Darlymple sign - Graves disease.
math_qa
mathqa_03_00801
in an institute , 60 % of the students are boys and the rest are girls . further 15 % of the boys and 7.5 % of the girls are getting a fee waiver . if the number of those getting a fee waiver is 90 , find the total number of students getting 50 % concessions if it is given that 50 % of those not getting a fee waiver ar...
[ "360", "280", "320", "330" ]
D
solution : let us assume there are 100 students in the institute . then , number of boys = 60 and , number of girls = 40 further , 15 % of boys get fee waiver = 9 boys 7.5 % of girls get fee waiver = 3 girls total = 12 students who gets fee waiver but , here given 90 students are getting fee waiver . so we compare 12 =...
medmcqa
medmcqa_05_03452
A patient has IDDM diagnosed at age of 15 years. The most reliable indicator for diabetic nephropathy is-A patient has IDDM diagnosed at age of 15 years. The most reliable indicator for diabetic nephropathy is-
[ "Urine albumin < 50 mg per day in 3 consecutive samples", "Urinary protein >550mg perday for3 consecutive samples", "Development of diabetic retinopathy", "Hematuria" ]
B
Ans is option 2 Urinary protein more than 550mg/day for 3 consecutive samples Microalbuminuria is defined as albumin excretion of 30-300mg/dl Ove nephropathy or ove proteinuria is defined as albumin excretion greater than 300mg/dl Ref Harrison 17/e p 2288 Robbins 7/e p 992
medmcqa
medmcqa_05_01068
Investigation of choice for detection and characterization of interstitial lung disease is
[ "MRI", "Chest x-ray", "Venlaon perfusion scan", "High resoluon CT" ]
D
High Resoluon CT (HRCT) is investigation of choice for interstitial lung disease as it can delineate the lung parenchyma upto the level of secondary pulmonary lobule.
math_qa
mathqa_03_00454
a number is said to be prime saturated if the product of all the different positive prime factors of e is less than the square root of e . what is the greatest two digit prime saturated integer ?
[ "99", "98", "97", "96" ]
D
"e = 96 = 3 * 32 = 3 * 2 ^ 5 answer is d ."
ARC-Easy
arc_04_00448
The freezing and thawing action of water affects a rock by
[ "transforming the rock into igneous rock.", "chemically changing the rock.", "gradually breaking down the rock into smaller pieces.", "leaving behind sedimentary particles from evaporated solutions." ]
C
null
math_qa
mathqa_03_04078
the diagonals of a rhombus are 16 cm and 20 cm . find its area ?
[ "160", "288", "150", "238" ]
A
"1 / 2 * 16 * 20 = 160 answer : a"
sciq
sciq_01_05610
Carbonic anhydrase plays what role to achieve a variety of results involving different organs?
[ "inhibition", "blocker", "enzyme", "sequence" ]
C
About 67 percent of the water, Na+, and K+ entering the nephron is reabsorbed in the PCT and returned to the circulation. Almost 100 percent of glucose, amino acids, and other organic substances such as vitamins are normally recovered here. Some glucose may appear in the urine if circulating glucose levels are high eno...
sciq
sciq_01_08801
The cells of what basic plant structure lack chloroplasts?
[ "leaf", "ferns", "stem", "root" ]
D
openbookqa
obqa_02_02445
A small rodent will fear a creature such as a fox because
[ "foxes enjoy rodent dinners", "foxes are very small", "squirrels eat mostly beans", "mice are able to fly" ]
A
predators eat prey
medmcqa
medmcqa_05_04001
A patient presented with pain in left eye associated with visual distrubance, also a history of blunt trauma to eye 4 month back, first investingation of choice is
[ "Introcular tension", "Ophthalmoscopy", "Perimetry", "Ultrasound" ]
A
A i.e. Intraocular tension This is a case of angle recession glaucoma
math_qa
mathqa_03_00349
running at the same constant rate , 15 identical machines can produce a total of 45 bags per minute . at this rate , how many bags could 150 such machines produce in 8 minutes ?
[ "9,00", "1,800", "2,700", "3,600" ]
D
"let ' s take the approach that uses the answer choices to eliminate wasted time . 45 / 15 = 3 bags per minute per machine . 150 machines = 450 per minute . 8 minutes worth = 3600 bags . looking at the answers it is clear . . . we can only choose ( d ) . the correct answer is d ."
ARC-Easy
arc_04_01594
Sedimentary deposits formed from organic material tend to include a high amount of
[ "iron.", "nickel.", "carbon.", "silicon." ]
C
null
sciq
sciq_01_05918
What is the process in which the genetic code in mrna is read to make a protein called?
[ "expression", "modification", "splicing", "translation" ]
D
Translation is the second part of the central dogma of molecular biology: RNA → Protein . It is the process in which the genetic code in mRNA is read to make a protein. Figure below shows how this happens. After mRNA leaves the nucleus, it moves to a ribosome, which consists of rRNA and proteins. The ribosome reads the...
sciq
sciq_01_02439
What is the shortest phase of the sexual response cycle?
[ "plateau phase", "resolution phase", "sexual stimulation", "the orgasm" ]
D
sciq
sciq_01_04779
Carbon and what are the second and third most abundant elements in your body?
[ "calcium", "helium", "mercury", "hydrogen" ]
D
2.4 | Inorganic Compounds Essential to Human Functioning By the end of this section, you will be able to: • Compare and contrast inorganic and organic compounds • Identify the properties of water that make it essential to life • Explain the role of salts in body functioning • Distinguish between acids and bases, and ex...
math_qa
mathqa_03_00603
a certain fruit stand sold apples for $ 0.80 each and bananas for $ 0.70 each . if a customer purchased both apples and bananas from the stand for a total of $ 6.50 , what total number of apples and bananas did the customer purchase ?
[ "8", "9", "10", "11" ]
B
let ' s start with 1 apple for $ 0.80 . let ' s subtract $ 0.80 from $ 6.50 until we get a multiple of $ 0.70 . $ 6.50 , $ 5.70 , $ 4.90 = 7 * $ 0.70 the customer purchased 7 bananas and 2 apples . the answer is b .
sciq
sciq_01_03349
What is term for the smallest particle of an element that still has the properties of said element?
[ "nucleus", "molecule", "atom", "proton" ]
C
Atoms are the building blocks of matter. They are the smallest particles of an element that still have the element’s properties. Elements, in turn, are pure substances—such as nickel, hydrogen, and helium—that make up all kinds of matter. All the atoms of a given element are identical in that they have the same number ...
sciq
sciq_01_06764
What are clouds on earth made of?
[ "water vapor", "rain", "carbon dioxide gas", "ozone" ]
A
Clouds on Earth are made of water vapor. Venus's clouds are a lot less pleasant. They are made of carbon dioxide, sulfur dioxide, and large amounts of corrosive sulfuric acid! Scientists think the color of sunlight on Venus is reddish-brown.
openbookqa
obqa_02_04439
Which is true
[ "an anemometer would measure a tropic front", "an anemometer would measure thunder", "an anemometer would measure a rainbow", "an anemometer would measure a lightning bolt" ]
A
an anemometer is used to measure wind speed
sciq
sciq_01_07257
The rate that energy is released is known as
[ "pressure", "flow", "heat", "power" ]
D
Power is the rate that energy is released. The units for power are watts (W), which equal joules per second . For example, a 60 W light bulb transforms 60 joules of electrical energy into light and heat energy every second.
math_qa
mathqa_03_00140
suresh can complete a job in 15 hours . ashutosh alone can complete the same job in 30 hours . suresh works for 9 hours and then the remaining job is completed by ashutosh . how many hours will it take ashutosh to complete the remaining job alone ?
[ "4", "5", "6", "12" ]
D
"the part of job that suresh completes in 9 hours = 9 ⠁ „ 15 = 3 ⠁ „ 5 remaining job = 1 - 3 ⠁ „ 5 = 2 ⠁ „ 5 remaining job can be done by ashutosh in 2 ⠁ „ 5 ã — 30 = 12 hours answer d"
sciq
sciq_01_02683
What do you call the state in which a plant slows down cellular activities and may shed its leaves?
[ "germination", "recession", "hibernation", "dormancy" ]
D
In biomes with cold climates, plants may adapt by becoming dormant during the coldest part of the year. Dormancy is a state in which a plant slows down cellular activities and may shed its leaves. Animals also adapt to cold temperatures. One way is with insulation in the form of fur and fat. This is how the polar bears...
math_qa
mathqa_03_01295
if the ratio of a to b is 2 to 3 and the ratio of b to c is 1 to 5 , what is the ratio of a to c ?
[ "4 / 15", "1 / 3", "2 / 15", "4 / 5" ]
C
"a : b = 2 : 3 - - 1 b : c = 1 : 5 = > b : c = 3 : 15 - - 2 from 1 and 2 , we get a : c = 2 : 15 answer c"
medmcqa
medmcqa_05_04633
Commonest cause of colonic obstruction in neonates is:
[ "Meconium ileus", "Aganglionic colon", "Ileal atresia", "Volvulus" ]
B
Aganglionic colon is Commonest cause of colonic obstruction in neonates.
ARC-Easy
arc_04_01963
Which of the following is the best estimate of the number of stars in a typical galaxy?
[ "tens", "hundreds", "thousands", "billions" ]
D
null
sciq
sciq_01_03305
What planet has the most volcanoes?
[ "Earth", "uranus", "venus", "Mars" ]
C
Venus has more volcanoes than any other planet. There are between 100,000 and one million volcanoes on Venus! Most of the volcanoes are now inactive. There are also a large number of craters. This means that Venus doesn’t have tectonic plates. Plate tectonics on Earth erases features over time. Figure below is an image...
ARC-Challenge
arc_04_03127
Newton's work in physics helped to provide mathematical explanations for the earlier conclusions of which scientist?
[ "Ptolemy", "Aristotle", "Nicolas Copernicus", "Dmitri Mendeleev" ]
C
null
openbookqa
obqa_02_00893
What has a positive impact on body strength?
[ "frequent physical contact", "irregular body motion", "decreased physical effort", "active physical effort" ]
D
exercise has a positive impact on a body 's strength
math_qa
mathqa_03_02208
in one hour , a boat goes 11 km along the stream and 5 km against the stream . the sped of the boat in still water ( in km / hr ) is :
[ "3", "5", "8", "9" ]
C
"solution speed in still water = 1 / 2 ( 11 + 5 ) km / hr = 8 kmph . answer c"
openbookqa
obqa_02_01005
At high elevations, there is little risk of flooding, but at low elevations, what will happen?
[ "water damage will be more apparent", "flood damage will be decreased", "flooding will be less of a risk", "more floodwater will be clean" ]
A
as elevation of a place decreases , how much a flood will affect that place will increases
medmcqa
medmcqa_05_03872
which of the following is most likely to be acquired by traumatic inoculation
[ "Blastomycoses dermatitidis", "Sporothrix Schenkii", "Coccides immitis", "Paracoccidioides Brasiliensis" ]
B
All dimorphic fungi are acquired respiratory route except Sporothsix schenkii which is acquired in majority by traumatic inoculation of conidia it&;s also known as Rose garden ds. ref : ananthanaryana
sciq
sciq_01_09751
What is the name of the line used in topographic maps that shows different elevations?
[ "a curve line", "a crater line", "a contour line", "a patch line" ]
C
Mapping is an important part of Earth Science. Topographic maps use a line, called a contour line, to show different elevations on a map. Contour lines show the location of hills, mountains and valleys. A regular road map shows where a road goes. But a road map doesn’t show if the road goes over a mountain pass or thro...
sciq
sciq_01_10170
Herbivores and the bacteria that live in their intestines demonstrate a two-way beneficial relationship called what?
[ "syncretism", "mutualism", "pragmatism", "parasitism" ]
B
An example of a mutualistic relationship is between herbivores (plant-eaters) and the bacteria that live in their intestines. The bacteria get a place to live. Meanwhile, the bacteria help the herbivore digest food. Both species benefit, so this is a mutualistic relationship. The clownfish and the sea anemones also hav...
sciq
sciq_01_07834
What is the term for a gas that completely abides by the kinetic-molecular theory?
[ "heat gas", "ideal gas", "cold gas", "fast gas" ]
B
An ideal gas is one that follows the gas laws at all conditions of temperature and pressure. To do so, the gas would need to completely abide by the kinetic-molecular theory. The gas particles would need to occupy zero volume and they would need to exhibit no attractive forces what so ever toward each other. Since neit...
medmcqa
medmcqa_05_02030
Pott's puffy tumour is related to:
[ "Infected cell in middle turbinate", "Tuberculous sinusitis", "Pyogenic infection of frontal sinus", "Cavernous sinus thrombosis" ]
C
Pott's puffy tumour is a complication of pyogenic infection of frontal sinus. Pus collects under the periosteum on the anterior surface of the frontal sinus with associated oedema of skin and subcutaneous tissues.
math_qa
mathqa_03_04449
the average weight of 8 person ' s increases by 2.5 kg when a new person comes in place of one of them weighing 20 kg . what is the weight of the new person ?
[ "75", "65", "85", "40" ]
D
total increase in weight = 8 × 2.5 = 20 if x is the weight of the new person , total increase in weight = x − 20 = > 20 = x - 20 = > x = 20 + 20 = 40 answer is d .
ARC-Challenge
arc_04_02243
A species lives in a region that changes over time from temperate to tropical. The survival of the species will be most probable if the species can do which of the following?
[ "reduce the energy requirements", "adapt to exploit changed resources", "interbreed with similar tropical organisms", "emigrate before the change is complete" ]
B
null
ARC-Challenge
arc_04_02325
Inside cells, special molecules carry messages from the membrane to the nucleus. Which body system uses a similar process?
[ "endocrine system", "lymphatic system", "excretory system", "integumentary system" ]
A
null
medmcqa
medmcqa_05_03557
Sleep disturbances are diagnosed by -
[ "Polysomnography", "Oximetry", "Echocardiography", "Orthography" ]
A
Ans. is 'a' i.e., Polysomnography * Polysomnography is an essential tool in the formulation of diagnoses for sleep disorder patients and in the enhancement of our understanding of normal sleep.
sciq
sciq_01_10051
Mesophyll consists mainly of parenchyma cells specialized for what?
[ "circulation", "respiration", "digestion", "photosynthesis" ]
D
sciq
sciq_01_00480
What is the number of electrons equal to in every electrically neutral atom?
[ "Electrons", "molecules", "protons", "nucleus" ]
C
Electron Shells and the Bohr Model It should be stressed that there is a connection between the number of protons in an element, the atomic number that distinguishes one element from another, and the number of electrons it has. In all electrically neutral atoms, the number of electrons is the same as the number of prot...
openbookqa
obqa_02_04223
What will it be harder to see as light pollution increases?
[ "sky", "moon", "stars", "sun" ]
C
as light pollution increases , seeing the stars will be harder
openbookqa
obqa_02_01835
A pond of frogs once contained
[ "pollywogs", "sharks", "princes", "French people" ]
A
metamorphosis is a stage in the life cycle process of some animals