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medmcqa
medmcqa_05_02828
Which is not included in NVBDCP ?
[ "Dengue", "Malaria", "Japanese encephalitis", "Plague" ]
D
Ans. is 'd' i.e., Plague NVBDCP includes 6 vector borne diseases of public health impoance in India : Malaria Kala-azar Dengue Japenese encephalitis Filaria Chikungunya fever
sciq
sciq_01_05669
Biochemistry is the study of the chemistry of?
[ "abiotic factors", "the Earth", "inorganic matter", "living systems" ]
D
The related field of biochemistry overlaps to some extent with organic chemistry. Biochemistry is the study of the chemistry of living systems. Many biochemical compounds are considered to be organic chemicals. Both of the molecules shown above are biochemical materials in terms of their use in the body, but organic ch...
sciq
sciq_01_00804
What is a sheet of muscle that spreads across the bottom of the rib cage?
[ "cartilage", "thorax", "diagram", "diaphragm" ]
D
The diaphragm is a sheet of muscle that spreads across the bottom of the rib cage. When the diaphragm contracts, the chest volume gets larger, and the lungs take in air. When the diaphragm relaxes, the chest volume gets smaller, and air is pushed out of the lungs.
math_qa
mathqa_03_00478
water is leaking out from a cylinder container at the rate of 0.31 m ^ 3 per minute . after 10 minutes , the water level decreases 4 meters . what is value of the radius ?
[ "0.5", "1.0", "1.5", "2.0" ]
A
"10 * 0.31 = 3.1 m ^ 3 = pi * r ^ 2 * h r ^ 2 = 3.1 / ( pi * 4 ) which is about 1 / 4 r = 1 / 2 the answer is a ."
openbookqa
obqa_02_03347
which of these eventually form crude oil after millions of years in the earth?
[ "a plastic set of cups", "a family of dogs", "a twelve pack of beer cans", "a set of silverware" ]
B
an organism is a source of organic material
sciq
sciq_01_03403
Since 1900, four of the five earthquakes of the greatest magnitude occurred near what appropriately nicknamed pacific location?
[ "quake epicenter", "seismic zone", "shower of fire", "ring of fire" ]
D
Earthquakes with a magnitude in the 9 range are rare. The United States Geological Survey lists five such earthquakes on the moment magnitude scale since 1900 (see Figure below ). All but one, the Great Indian Ocean Earthquake of 2004, occurred somewhere around the Pacific Ring of Fire.
sciq
sciq_01_11367
Volume is another way of measuring what?
[ "length", "height", "weight", "material" ]
D
Volume is another way of measuring material. Gases cannot be easily weighed, but their volume can be determined quickly and accurately. Liquid chemicals as well as foods and beverages are also sold by volume. Gasoline for our cars and trucks is sold by the gallon. At the grocery store, we can buy a gallon of milk or a ...
sciq
sciq_01_06403
How many lobes is each hemisphere of the cerebrum divided into?
[ "4", "5", "9", "2" ]
A
Each hemisphere of the cerebrum is divided into four parts, called lobes. The four lobes are the:.
openbookqa
obqa_02_04393
Your clothes likely will be soaked if the skies are
[ "sunny without clouds", "light blue", "black", "clear" ]
C
if weather is stormy then there is a greater chance of rain
sciq
sciq_01_09264
Nonshivering thermogenesis, which involves the breakdown of brown adipose tissue, is a special methods newborns have for what purpose?
[ "harnessing heat", "losing heat", "generating heat", "moving heat" ]
C
Thermoregulatory Adjustments The fetus floats in warm amniotic fluid that is maintained at a temperature of approximately 98.6°F with very little fluctuation. Birth exposes newborns to a cooler environment in which they have to regulate their own body temperature. Newborns have a higher ratio of surface area to volume ...
sciq
sciq_01_01794
Where does a baby travel to after leaving the uterus?
[ "tissue canal", "birth canal", "ear canal", "nasal canal" ]
B
Some processes in the body are regulated by positive feedback. Positive feedback is when a response to an event increases the likelihood of the event to continue. An example of positive feedback is milk production in nursing mothers. As the baby drinks her mother's milk, the hormone prolactin, a chemical signal, is rel...
math_qa
mathqa_03_00905
if k and w are the dimensions of a rectangle that has area 20 and if k and w are integers such that k > w , what is the total number of possible values of k ?
[ "two'", "three'", "four'", "five'" ]
B
kw = 20 = 20 * 1 = 10 * 2 = 5 * 4 - - > k can take 3 values , answer : b
sciq
sciq_01_11297
What is it called when a mistake occurs in dna replication.
[ "radiation", "mutation", "degradation", "adaptation" ]
B
Mutations have many possible causes. Some mutations occur when a mistake is made during DNA replication or transcription. Other mutations occur because of environmental factors. Anything in the environment that causes a mutation is known as a mutagen . Examples of mutagens are shown in Figure below . They include ultra...
sciq
sciq_01_06375
The nervous system is characterized by electrical signals that are sent from one area to another. whether those areas are close or very far apart, the signal must travel along this?
[ "axial", "tendons", "hairs", "axon" ]
D
12.4 The Action Potential The nervous system is characterized by electrical signals that are sent from one area to another. Whether those areas are close or very far apart, the signal must travel along an axon. The basis of the electrical signal is the controlled distribution of ions across the membrane. Transmembrane ...
sciq
sciq_01_01766
Name the multi-phase process in which the nucleus of a eukaryotic cell divides?
[ "cytokinesis", "meiosis", "symbiosis", "mitosis" ]
D
Mitosis in the Eukaryotic Cell Cycle. Mitosis is the multi-phase process in which the nucleus of a eukaryotic cell divides. In this diagram, prometaphase is not included as a separate phase, but incorporated into prophase.
sciq
sciq_01_02764
Saltwater is a homogeneous mixture, another term for what?
[ "element", "structure", "lipid", "solution" ]
D
Solution 1. Saltwater acts as if it were a single substance even though it contains two substances—salt and water. Saltwater is a homogeneous mixture, or a solution. Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture. Water is a substance; more specifically, because water is co...
math_qa
mathqa_03_01137
what is 25 % of 4 / 12 of 520 ?
[ "49", "56", "60", "43" ]
D
25 % = 25 / 100 = 1 / 4 of 4 / 12 = 1 / 4 * 4 / 12 = 1 / 12 of 520 = 1 / 12 * 520 = 43.33 = = 43 ans - d
math_qa
mathqa_03_04695
every disk in a bag is either blue , yellow or green . the ratio of blue disks to yellow disks to green disks in this bag is 3 : 7 : 8 . if the total number of disks in the bag is 108 , how many more green disks than blue disks are in the bag ?
[ "25", "28", "30", "35" ]
C
"let b : y : g = 3 x : 7 x : 8 x . 3 x + 7 x + 8 x = 18 x = 108 - - > x = 6 . g - b = 8 x - 3 x = 5 x = 30 . the answer is c ."
openbookqa
obqa_02_04603
Which of these are inherited instead of acquired?
[ "wealth", "height", "prison time served", "wisdom" ]
B
the shape of body parts is an inherited characteristic
ARC-Challenge
arc_04_03089
Sam builds a ramp and lets a toy car roll down. Which describes the energy of the car as it rolls down the ramp?
[ "The kinetic energy and the potential energy both increase.", "The kinetic energy and the potential energy both decrease.", "The kinetic energy increases and the potential energy decreases.", "The kinetic energy decreases and the potential energy increases." ]
C
null
medmcqa
medmcqa_05_04150
For CA breast best chemotherapeutic regimen ?
[ "Cyclophosphamide, methotrexate, 5-fluorouracil", "Methotrexate, cisplatin", "Cispltain, Adriamycin, steroid", "Methotrexate, Adriamycin, steroid" ]
A
Ans is 'a' ie Cyclophosphamide, methotrexate & 5-FU Previously CMF (cyclophosphamide, methotrexate & 5-fluorouracil) was the chemotherapeutic regimen of choice. "CMF is no longer considered adequate adjuvant chemotherapy and modern regimens include an anthracycline doxorubicin or epirubicin) and the newer agents such a...
sciq
sciq_01_07504
Which season is moist, causing the most thunderstorms?
[ "winter", "summer", "spring", "autumn" ]
B
openbookqa
obqa_02_01178
What is an example of the fact that crop rotation renews the soil?
[ "planting rows of carrots and peas next to one another", "planting peas one season then carrots the next", "planting a field of corn with different types in it", "tilling the soil in between crops" ]
B
crop rotation renews soil
sciq
sciq_01_07373
What are electrons lost during the formation of ions called?
[ "cations", "catalysts", "isotopes", "oxides" ]
A
Some elements lose one or more electrons in forming ions. These ions are known as “ cations ” because they are positively charged and migrate toward the negative electrode ( cathode ) in an electrical field. Looking at the periodic table below, we know that the group 1 elements are all characterized by having one s ele...
ARC-Easy
arc_04_00637
In clear weather, a bright light can be seen for a long distance. In conditions of heavy fog, the visibility is greatly reduced. Which of the following explains the reduced visibility?
[ "Light is refracted by water vapor in the air.", "Light is scattered by water droplets in the air.", "Light is absorbed by water vapor near the ground.", "Light is reflected by water droplets on the ground." ]
B
null
openbookqa
obqa_02_00821
What needs measurements taken in the morning and evening?
[ "coastal range", "tidal range", "wave length", "apex" ]
B
tidal range is a measure of the vertical distance from high tide to low tide
sciq
sciq_01_11607
When do hammerhead sharks usually hunt?
[ "summer", "in the day", "at night", "winter" ]
C
Figure 29.11 Hammerhead sharks tend to school during the day and hunt prey at night. (credit: Masashi Sugawara).
sciq
sciq_01_06358
What part of the brain regulates certain hormones associated with reproduction during breeding seasons?
[ "hippocampus", "hypothalamus", "frontal lobe", "thalamus" ]
B
sciq
sciq_01_03542
Hydropower is generated with what natural resource?
[ "water", "light", "fire", "air" ]
A
Hydropower utilizes the energy of falling water.
openbookqa
obqa_02_00073
Which of these items is required for a deer to live
[ "sun", "iron", "sand", "cafeteria" ]
A
the sun is the source of energy for life on Earth
medmcqa
medmcqa_05_03979
Cryptococcus has predilection for
[ "Lungs", "Meninges", "liver", "GIT" ]
A
Cryptococcal infection is usually acquired by inhalation causing pulmonary cryptococcosis which may lead to mild pneumonitis. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition
medmcqa
medmcqa_05_03923
Anion gap means
[ "Gap in anion molecule", "Difference between high and normal anion gap acidosis", "Unmeasured ions", "Primary deficit of anions" ]
C
i. The sum of cations and anions in ECF is always equal, so as to maintain the electrical neutrality. Sodium and potassium together account for 95% of the cations whereas chloride and bicarbonate account for only 86% of the anions. Only these electrolytes are commonly measured.ii. Hence, there is always a difference be...
medmcqa
medmcqa_05_01458
A female with H/o oligohydramnios during her pregnancy, brings her newborn baby to OPD, on noticing asymmetric thigh folds in her child. The examiner performs flexion, IR and abduction, which produces a click sound. Which is the test done by the examiner?
[ "Oolani test", "Von Rosen test", "Mc Murray's test", "Barlow's test" ]
A
Clinical Diagnosis - DDH based on the following 1. Abduction is limited (especially in flexion) 2. Asymmetric thigh folds Oolani's Test--the first two alphabets O and R (Oolani for Reduction) and for Reduction we do abduction of hip. It is similar to 2nd pa of Barlow's test McMurray circumduction test is used to evalua...
math_qa
mathqa_03_00787
12 : 6 seconds : : ? : 8 minutes
[ "10", "15", "16", "25" ]
C
"12 * 8 = 6 * x x = 16 answer : c"
sciq
sciq_01_01747
What is the name for a parasite that causes disease?
[ "enfluenza", "pathogen", "fungi", "microbes" ]
B
sciq
sciq_01_03012
What is the term for a cellular "scaffolding" that crisscrosses the cytoplasm?
[ "protoskeleton", "cellulose", "cytoskeleton", "collagen" ]
C
The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses the cytoplasm. All eukaryotic cells have a cytoskeleton, and recent research has shown that prokaryotic cells also have a cytoskeleton. The eukaryotic cytoskeleton is made up of a network of long, thin protein fibers and has many functions. It...
openbookqa
obqa_02_00228
I have to plug in a processor of food because it
[ "Is used for grinding metal", "is an oil machine", "is an electric Motor", "is a battery operated machine" ]
C
an electric car contains an electric motor
math_qa
mathqa_03_02698
in 2008 , the profits of company n were 8 percent of revenues . in 2009 , the revenues of company n fell by 20 percent , but profits were 15 percent of revenues . the profits in 2009 were what percent of the profits in 2008 ?
[ "150 %", "105 %", "120 %", "124.2 %" ]
A
"the profit 0 f 2009 interms of 2008 = 0.8 * 15 / 8 * 100 = 150 % a"
sciq
sciq_01_02584
What type of feeders are sea lilies and feather stars?
[ "bottom feeder", "deposit feeder", "silt feeders", "suspension feeders" ]
D
Explore the sea star’s body plan (http://openstaxcollege. org/l/sea_star) up close, watch one move across the sea floor, and see it devour a mussel. Brittle stars belong to the class Ophiuroidea. Unlike sea stars, which have plump arms, brittle stars have long, thin arms that are sharply demarcated from the central dis...
sciq
sciq_01_06361
Viruses may damage or kill cells by causing the release of hydrolytic enzymes from where?
[ "capillaries", "glands", "lipids", "lysosomes" ]
D
openbookqa
obqa_02_01682
Once the grounds frost over and the air grows chilled
[ "beaches are opened", "humans go naked", "birds lay eggs", "roses die" ]
D
usually plants die or become dormant during the winter
openbookqa
obqa_02_01538
An environmentalist heats their home by using a corn stove. The environmentalist knows that heating this way releases carbon dioxide back into the air, but is unworried about is as a result of
[ "it promoting plant growth", "corn is too dangerous", "corn is actually evil", "corn grows under the water" ]
A
biofuel releases carbon dioxide into the atmosphere
math_qa
mathqa_03_01243
a man engaged a servant on the condition that he would pay him rs . 900 and auniform after 1 year service . he served only for 9 months and received uniform and rs . 650 , find the price of the uniform ?
[ "rs . 80", "rs . 100", "rs . 120", "rs . 145" ]
B
"9 / 12 = 3 / 4 * 900 = 675 650 - - - - - - - - - - - - - 25 1 / 4 - - - - - - - - 25 1 - - - - - - - - - ? = > rs . 100 b"
medmcqa
medmcqa_05_04431
Hangover following alcohol consumption can be treated with
[ "Pyridoxine", "Thiamine", "Riboflavin", "Niacin" ]
B
The most common withdrawal syndrome with alcohol is a hangover on the next morning.In patients suffering from (or likely to suffer from) delirium tremens, peripheral neuropathy, WernickeKorsakoff syndrome, and/or with other signs of vitamin B deficiency (especially thiamine and nicotinic acid), a preparation of vitamin...
sciq
sciq_01_04877
What layer, made of hot, solid rock, is beneath the earth's crust?
[ "mantle", "marble", "magma", "core" ]
A
Beneath the crust is the mantle . The mantle is made of hot, solid rock. Through the process of conduction, heat flows from warmer objects to cooler objects ( Figure below ). The lower mantle is heated directly by conduction from the core.
ARC-Easy
arc_04_02053
A scientist studies the remains of two extinct animals to learn more about how they lived. She determines that one animal was a carnivore and the other was an herbivore. Which of the following did the scientist most likely compare to make this conclusion?
[ "the number of bones in the animals", "the size of the animals", "the body covering of the animals", "the skull of the animals" ]
D
null
medmcqa
medmcqa_05_01178
Early post-operative complication of ileostomy in the post-operative period
[ "Obstruction", "Necrosis", "Diarrhea", "Prolapse" ]
D
.Ileostomy is placed in right iliac fossa lateral to right rectus muscle. * Ileostomy may be temporary (loop) or permanent (end) * Brooke's classic end non continent ileostomy or Koch's continent ileostomy (with continent intra abdominal pouch) are used * Ileum should project as a spout at least 4 cm above the skin sur...
sciq
sciq_01_08009
The job of the nucleolus is to build what?
[ "chromosomes", "cells", "electrons", "ribosomes" ]
D
The nucleus of many cells also contains a central region called the nucleolus . The job of the nucleolus is to build ribosomes. These ribosomes flow out the nuclear pores into the cytoplasm. Ribosomes are organelles that make proteins in the cytoplasm. See the composition of the nucleus pictured below ( Figure below ).
sciq
sciq_01_07402
What do plants lose the most of through the stomata?
[ "heat", "energy", "chlorophyll", "water" ]
D
ARC-Easy
arc_04_00778
Census data show that the human population doubled from 2.65 billion in 1953 to 5.3 billion in 1990. If it continues to double at this rate, the human population could reach 10 billion by the year 2020. Which best explains how this rate of human growth can harm the environment on which humans depend?
[ "by gradually making up more available energy", "by using resources faster than they can be replaced", "by changing how matter cycles through an ecosystem", "by increasing the variety of ecosystems that are supported" ]
B
null
sciq
sciq_01_00708
Bacteria reproduce through what process?
[ "residual fission", "binary fission", "binary fusion", "tertiary fission" ]
B
Bacteria reproduce through a process called binary fission . During binary fission, the chromosome copies itself, forming two genetically identical copies. Then, the cell enlarges and divides into two new daughter cells. The two daughter cells are identical to the parent cell. Binary fission can happen very rapidly. So...
openbookqa
obqa_02_00764
Increasing the amount of heat can be done by
[ "adding gas to a fire", "putting a pot on the stove", "covering up with a blanket", "moving to a warm climate" ]
A
an exothermic reaction increases the amount of heat
math_qa
mathqa_03_00793
if each participant of a chess tournament plays exactly one game with each of the remaining participants , then 231 games will be played during the tournament . what is the number of participants ?
[ "16", "18", "20", "22" ]
D
"let n be the number of participants . the number of games is nc 2 = n * ( n - 1 ) / 2 = 231 n * ( n - 1 ) = 462 = 22 * 21 ( trial and error ) the answer is d ."
sciq
sciq_01_07686
Magma can be created when temperature rises, pressure lowers, or what else is added?
[ "water", "air", "dirt", "sand" ]
A
Magma can be created when temperature rises, pressure lowers, or water is added.
math_qa
mathqa_03_03396
a drink vendor has 50 liters of maaza , 144 liters of pepsi and 368 liters of sprite . he wants to pack them in cans , so that each can contains the same number of liters of a drink , and does n ' t want to mix any two drinks in a can . what is the least number of cans required ?
[ "135", "237", "281", "300" ]
C
"the number of liters in each can = hcf of 50 , 144 and 368 = 2 liters . number of cans of maaza = 50 / 2 = 25 number of cans of pepsi = 144 / 2 = 72 number of cans of sprite = 368 / 2 = 184 the total number of cans required = 25 + 72 + 184 = 281 cans . answer : c"
sciq
sciq_01_03387
What pigment is required for photosynthesis to occur?
[ "chlorophyll", "xanthophyll", "chroma", "carotene" ]
A
sciq
sciq_01_11674
The enzyme pepsin plays an important role in the digestion of proteins by breaking down intact protein to what short-chain amino acids?
[ "lipids", "peptides", "protons", "proteins" ]
B
Protein A large part of protein digestion takes place in the stomach. The enzyme pepsin plays an important role in the digestion of proteins by breaking down the intact protein to peptides, which are short chains of four to nine amino acids. In the duodenum, other enzymes— trypsin, elastase, and chymotrypsin—act on the...
medmcqa
medmcqa_05_03719
Nucleus of basal ganglia
[ "Dentate", "Thalamus", "Caudate", "Red nucleus" ]
C
Ans. (c) Caudate(Ref: Ganong, 25th ed/p.243)Basal ganglia nuclei are,#Caudate and Putamen#Globus pallidus#Substantia nigra#Subthalamic nucleus
sciq
sciq_01_08361
A change in one or more physical properties of matter without any change in chemical properties is called what?
[ "atmospheric change", "positive change", "negative change", "physical change" ]
D
A physical change is a change in one or more physical properties of matter without any change in chemical properties. In other words, matter doesn’t change into a different substance in a physical change. Examples of physical change include changes in the size or shape of matter. Changes of state—for example, from soli...
sciq
sciq_01_04212
How do the male gorillas show display behaviors?
[ "vocalization", "food gathering", "spontaneous mutation", "showing aggression" ]
D
In many species display behaviors, rather than actual physical attacks, are used to show aggression. This helps prevent injury and death. Male gorillas, for example, are more likely to put on a display of aggression than to attack another male. In fact, gorillas have a whole series of display behaviors that they use to...
math_qa
mathqa_03_04701
an engine moves at the speed of 60 kmph without any coaches attached to it . speed of the train reduces at the rate that varies directly as the square root of the number of coaches attached . when 4 coaches are attached speed decreases to 48 kmph . what will be the speed of train when 36 coaches are attached .
[ "24", "28", "20", "32" ]
A
"1 . no . of coaches = 4 sqr root = 2 speed decreases by 12 12 = k * 2 k = 6 no . of coaches = 36 swr root = 6 decrease = 6 * 6 = 36 new speed = 60 - 36 = 24 a"
medmcqa
medmcqa_05_03226
Not seen in peripheral smear o Plasmodium falciparum is:
[ "Gametocyte", "Sporozites", "Schizont", "Merozoites" ]
C
Schizont
sciq
sciq_01_04493
What term is used to describe the muscular canal (approximately 10 cm long) that serves as the entrance to the reproductive tract?
[ "vagina", "uterus", "cervix", "urethra" ]
A
Vagina The vagina, shown at the bottom of Figure 27.9 and Figure 27.9, is a muscular canal (approximately 10 cm long) that serves as the entrance to the reproductive tract. It also serves as the exit from the uterus during menses and childbirth. The outer walls of the anterior and posterior vagina are formed into longi...
sciq
sciq_01_06969
What causes light to refract?
[ "speeding up", "slowing down", "bending", "blinking" ]
B
Light slows down when it enters water from the air. This causes the wave to refract, or bend.
sciq
sciq_01_08760
What type of energy travels in waves across space as well as through matter?
[ "mechanical radiation", "kinetic energy", "thermal energy", "electromagnetic radiation" ]
D
Electromagnetic radiation is energy that travels in waves across space as well as through matter. Most of the electromagnetic radiation on Earth comes from the sun. Like other waves, electromagnetic waves are characterized by certain wavelengths and wave frequencies. Wavelength is the distance between two corresponding...
sciq
sciq_01_00160
Glaciers are incredibly powerful agents of what?
[ "erosion", "insulation", "extinction", "climate change" ]
A
Glaciers are incredibly powerful agents of erosion.
openbookqa
obqa_02_00858
Pelicans have an affinity for
[ "Sushi", "Cats", "Trash", "Mackerel" ]
D
sharp beaks are a kind of adaptation for catching prey
openbookqa
obqa_02_02143
A dog outside could be shuddering uncontrollably. Which of these could be related?
[ "they were scared by their own shadow", "they ate too much food", "white precipitation is falling and it's windy", "they are very tired" ]
C
shivering is when an animal creates heat by shaking to keep the body warm
sciq
sciq_01_10307
Dietary proteins are broken down into amino acids during what process?
[ "accumulation", "photosynthesis", "filtration", "digestion" ]
D
Proteins in the diet are necessary for life. Dietary proteins are broken down into their component amino acids when food is digested. Cells can then use the components to build new proteins. Humans are able to synthesize all but eight of the twenty common amino acids. These eight amino acids, called essential amino aci...
sciq
sciq_01_07203
Somatosensation includes all sensation received from the skin and mucous membranes, as well as from these?
[ "five senses", "glial cells", "limbs and joints", "organs" ]
C
36.2 Somatosensation Somatosensation includes all sensation received from the skin and mucous membranes, as well as from the limbs and joints. Somatosensation occurs all over the exterior of the body and at some interior locations as well, and a variety of receptor types, embedded in the skin and mucous membranes, play...
openbookqa
obqa_02_03766
Breaking free from it's cocoon is the last part it's
[ "mid-life crisis", "mutation", "fashion sense", "diet" ]
B
a moth undergoes metamorphosis
ARC-Easy
arc_04_02081
Henry and Emily are building a tree house. Which tool should be used to measure the height of the door?
[ "hammer", "meter stick", "balance", "stopwatch" ]
B
null
openbookqa
obqa_02_04136
Duracell's convert chemicals to
[ "ocean current", "sunlight", "magic", "voltage" ]
D
batteries convert chemical energy to electrical energy
openbookqa
obqa_02_01703
Squirrels can often be seen storing acorns during the
[ "summer", "spring", "fall", "winter" ]
C
squirrels gather nuts in the autumn to eat during the winter
sciq
sciq_01_04966
Which process is glycolysis in during cellular respiration?
[ "anaerobic", "aerobic", "enzymatic", "hydrolysis" ]
A
Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. Glycolysis is an anaerobic process. The other two stages are aerobic processes.
openbookqa
obqa_02_03388
Some flowers are unable to get enough sunlight because trees hover over them and do what to it
[ "sing to it", "nothing", "sell it", "intercept it" ]
D
if a tree falls then sunlight becomes available to the surrounding plants
medmcqa
medmcqa_05_01170
A 34-year-old power lifter visits the outpatient clinic because he has difficulty walking. During physical examination it is observed that the patient has a problem unlocking the knee joint to permit flexion of the leg. Which of the following muscles is most likely damaged?,
[ "Biceps femoris", "Gastronemius", "Popliteus", "Semimembranosus" ]
C
Popliteus serves in unlocking the knee , it rotates the distal poion of the femur in a lateral direction. It also draws the lateral meniscus posteriorly, thereby protecting this cailage as the distal femoral condyle glides and rolls backward, as the knee is flexed. The Biceps Femoris is a strong flexor of the leg and l...
math_qa
mathqa_03_00595
a bag contains 3 red , 6 yellow and 8 green balls . 3 balls are drawn randomly . what is the probability that the balls drawn contain balls of different colours ?
[ "2 / 7", "3 / 5", "3 / 11", "18 / 85" ]
D
"total number of balls = 3 + 6 + 8 = 17 n ( s ) = 17 c 3 = 680 n ( e ) = 3 c 1 * 6 c 1 * 8 c 1 = 144 probability = 144 / 680 = 18 / 85 answer is d"
openbookqa
obqa_02_02497
Jane's hat flew off her head while standing still on a hilltop. This could be because
[ "her head blew the hat off", "there was uneven heating of the ground", "a squirrel jumped up and grabbed it off of her head", "a spaceship pulled her hat off her head" ]
B
uneven heating of the Earth 's surface cause wind
math_qa
mathqa_03_03993
a and b can do a piece of work in 7 days . with the help of c they finish the work in 4 days . c alone can do that piece of work in ?
[ "33", "9 1 / 3", "30", "88" ]
B
"c = 1 / 4 â € “ 1 / 7 = 3 / 28 = > 28 / 3 = 9 1 / 3 days answer : b"
medmcqa
medmcqa_05_00287
Irreversible ototoxicity is caused by -
[ "Cisplatin", "Cyclophosfamide", "Bleomycin", "Chlorambucil" ]
A
Ans. is 'a' i.e., Cisplatin "Cisplatin induced hearing loss is usually bilateral and irreversible"Drugs causing ototoxicityA) Vestibular (primarily)o Aminoglycosides o Mustineo Quinidineo Quinineo Chloroquineo Vancomycino Furosemide o Ethacrynic acido Salicylates (high dose)B) Auditory (primarily)o NSAIDso Ethacrynic a...
sciq
sciq_01_03973
Any large molecule is referred to as what?
[ "polymer", "macromolecule", "cellular", "microtubule" ]
B
Carbon’s affinity for covalent bonding means that many distinct and relatively stable organic molecules nevertheless readily form larger, more complex molecules. Any large molecule is referred to as macromolecule (macro- = “large”), and the organic compounds in this section all fit this description. However, some macro...
sciq
sciq_01_03178
What causes nitrate to go back to its gaseous nitrogen state?
[ "phytoflagellate bacteria", "enzymes", "decomposers", "denitrifying bacteria" ]
D
Denitrifying bacteria turn nitrate back into gaseous nitrogen.
sciq
sciq_01_00195
Despite its small size, an erythrocyte contains about 250 million molecules of what?
[ "hemoglobin", "potassium", "plasma", "calcium" ]
A
math_qa
mathqa_03_00426
x can finish a work in 30 days . y can finish the same work in 15 days . yworked for 10 days and left the job . how many days does x alone need to finish the remaining work ?
[ "3", "10", "6", "8" ]
B
"work done by x in 1 day = 1 / 30 work done by y in 1 day = 1 / 15 work done by y in 10 days = 10 / 15 = 2 / 3 remaining work = 1 – 2 / 3 = 1 / 3 number of days in which x can finish the remaining work = ( 1 / 3 ) / ( 1 / 30 ) = 10 b"
medmcqa
medmcqa_05_02582
Most common cause of chronic laryngeal stenosis is
[ "Trauma", "Tuberculosis", "SLE", "Tumour" ]
A
The most common cause of chronic laryngeal stenosis is Trauma. Complications of laryngeal trauma Laryngeal stenosis which is supraglottic, glottic or subglottic. Perichondritis and laryngeal abscess. Vocal cord paralysis. Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 326
medmcqa
medmcqa_05_01453
Datura poisoning is characterized by: PGI 12; NEET 13
[ "Pinpoint pupil", "Dilated salivary gland", "Dilated pupil with facial flush", "Decreased temperature" ]
C
Ans. Dilated pupil with facial flush
sciq
sciq_01_11171
What is located beneath the lithosphere?
[ "magnetosphere", "troposphere", "hydropshere", "asthenosphere" ]
D
Beneath the lithosphere, the asthenosphere is solid rock that can flow.
math_qa
mathqa_03_00113
how many 4 - digit positive integers are there , where each digit is positive , and no 3 adjacent digits are same ?
[ "1236", "3528", "4096", "4608" ]
B
first digit . . 9 posibilities second digit , 8 possibilities third digit , 7 possibilities fourth digit , 7 possibilities . 9 * 8 * 7 * 7 = 3528 . b
math_qa
mathqa_03_04972
what is the least integer that is a sum of 4 different prime numbers each greater than 10 ?
[ "60", "62", "64", "66" ]
A
the sum of the four smallest primes greater than 10 is 11 + 13 + 17 + 19 = 60 . the answer is a .
medmcqa
medmcqa_05_00330
Most common vessels involved in cutaneous vasculitis
[ "Arteries", "Arterioles", "Capillaries", "Post-Capillary venules" ]
D
Cutaneous Vasculitis also called hypersensitivity vasculitis involves Post-Capillary Venules.
sciq
sciq_01_03732
What atmosphere do gills help exchange gas in?
[ "stratosphere", "ecosystem", "water", "air" ]
C
medmcqa
medmcqa_05_04277
Ectopic mucosa of Meckel's diverticulum is diagnosed by:
[ "Tc-99 radionuclide scan", "Angiography", "CT", "Endoscopy" ]
A
Ans. (a) Tc-99 radionuclide scanRef: Sabiston 19th edition, Pages 1268-1270* Tc99m radionuclide scan is based on the presence of ectopic gastric mucosa.* The sensitivity of the scan can be increased by giving glucagon, pentagastrin or cimetidine.
medmcqa
medmcqa_05_00866
Cupping of optic disc is seen in: March 2004
[ "Trachoma", "Open angle glaucoma", "Retinitis pigmentosa", "Retinoblastoma" ]
B
Ans. B i.e. Open angle glaucoma
sciq
sciq_01_03809
Electric generators change kinetic energy to what type of energy?
[ "intrinsic", "electrical", "light", "thermal" ]
B
Sources of voltage include electric generators and cells. Electric generators change kinetic energy to electrical energy. Chemical cells change chemical energy to electrical energy, and solar cells change solar energy to electrical energy.
medmcqa
medmcqa_05_00099
Which drug is used to treat PDA?
[ "Oxaceprol", "Indomethacin", "Dopamine", "Medical treatment Is ineffective" ]
B
Ans. is 'b' i.e., Indomethacin Management of PDAo NSAIDs (most commonly indomethacin) are used to induce closure of PDA, as these drugs inhibit synthesis of prostaglandins (Prostaglanding are involved in maintainance of patency of ductus arteriosuso Recent studies from Europe indicate that ibuprofen may be as effective...
sciq
sciq_01_11356
What is another name for nearsightedness?
[ "astigmatism", "presbyopia", "myopia", "hyperopia" ]
C
Myopia is also called nearsightedness. It affects about one third of people. People with myopia can see nearby objects clearly, but distant objects appear blurry. The picture below shows how a person with myopia might see two boys that are a few meters away ( Figure below ).
sciq
sciq_01_02763
Virtually all aquatic organisms depend directly or indirectly on what for food?
[ "ground beef", "protists", "growths", "prokaryotes" ]
B
Figure 23.30 Virtually all aquatic organisms depend directly or indirectly on protists for food. (credit “mollusks”: modification of work by Craig Stihler, USFWS; credit “crab”: modification of work by David Berkowitz; credit “dolphin”: modification of work by Mike Baird; credit “fish”: modification of work by Tim Shee...
openbookqa
obqa_02_01717
A fish lives in
[ "dihydrogen monoxide", "carbon monoxide", "dihydrotestosterone", "iron sulfate" ]
A
a fish lives in water
medmcqa
medmcqa_05_02183
A young adult presents with proptosis and pain in eye after 4 days of trauma to eye. Chemosis, conjunctival congestion and extraocular muscle palsy with inability to move eye are seen.Investigation of choice -
[ "MRI", "Digital subtraction angiography", "CT", "MR angiography" ]
B
Information in this question are :- Presentation 4 days after trauma Traumatic proptosis along with chemosis and conjunctival congestion Extraocular muscle palsy (ophthalmoplegia) Given the patient's clinical presentation of proptosis with chemosis and conjunctival congestion in the setting of cranio-facial injury,...