dataset
stringclasses
6 values
id
stringlengths
12
16
question
stringlengths
4
758
choices
listlengths
4
4
answer
stringclasses
4 values
support
stringlengths
0
7.76k
sciq
sciq_01_03477
How do oceans help control global warming?
[ "releasing oxygen", "absorbing carbon dioxide", "reflecting light", "Cooling air" ]
B
Ocean water also absorbs gases from the atmosphere. The most important are oxygen and carbon dioxide. Oxygen is needed by living things in the oceans. Much of the carbon dioxide sinks to the bottom of the seas. Carbon dioxide is a major cause of global warming. By absorbing carbon dioxide, the oceans help control globa...
sciq
sciq_01_04487
What is the most widely used form of renewable energy in the world?
[ "fossil fuel", "solar", "wind", "hydropower" ]
D
Moving water has energy ( Figure above ). That energy is used to make electricity. Hydroelectric power , or hydropower, harnesses the energy of water moving down a stream. Hydropower is the most widely used form of renewable energy in the world. This abundant energy source provides almost one fifth of the world’s elect...
math_qa
mathqa_03_01961
6.2 is what percent of 1000 ?
[ "62 %", "6.2 %", "0.62 %", "0.062 %" ]
C
"10 % of 1000 is 100 . 6.2 is way less than 100 ( 10 % of 1000 ) . so it can not be 62 % of 1000 . eliminate option a 1 % of 1000 is 10 . 6.2 is less than 10 . so it cant be 6.2 % . eliminate option b ( 0.5 % ) i . e . half of 1 % of 1000 is 5 . but 6.2 is greater than 5 . . so it has to be greater than 0.5 % . . . hen...
sciq
sciq_01_06593
Yogurt is made with milk fermented with what?
[ "pathogens", "disease", "bacteria", "viruses" ]
C
Describe hurricane formation and the damage they cause.
openbookqa
obqa_02_04028
What can humans hide from weather in?
[ "a shady tree", "a local museum", "a soda can", "a playground" ]
B
shelter can protect humans from weather
math_qa
mathqa_03_00586
yesterday ' s closing prices of 2,200 different stocks listed on a certain stock exchange were all different from today ' s closing prices . the number of stocks that closed at a higher price today than yesterday was 20 percent greater than the number that closed at a lower price . how many of the stocks closed at a hi...
[ "484", "726", "1,200", "1,320" ]
C
"lets consider the below - the number of stocks that closed at a higher price = h the number of stocks that closed at a lower price = l we understand from first statement - > h + l = 2200 - - - - ( 1 ) we understand from second statement - > h = ( 120 / 100 ) l = > h = 1.2 l - - - - ( 2 ) solve eq ( 1 ) ( 2 ) to get h ...
math_qa
mathqa_03_03029
what number has a 15 : 1 ratio to the number 10 ?
[ "130", "100", "200", "150" ]
D
"15 : 1 = x : 10 x = 10 * 15 x = 150 answer : d"
math_qa
mathqa_03_03774
a bag contains 5 red , 4 blue and 3 green balls . if 2 ballsare picked at random , what is the probability that both are red ?
[ "1 / 13", "2 / 23", "5 / 33", "4 / 27" ]
C
"p ( both are red ) , = 5 c 212 c 2 = 5 c 212 c 2 = 10 / 66 = 5 / 33 c"
math_qa
mathqa_03_00149
the sum of the ages of 5 children born at the intervals of 2 years each is 50 years . what is the age of the youngest child ?
[ "6", "18", "10", "99" ]
A
let x = the youngest child . each of the other four children will then be x + 2 , x + 4 , x + 6 , x + 8 . we know that the sum of their ages is 50 . so , x + ( x + 2 ) + ( x + 4 ) + ( x + 6 ) + ( x + 8 ) = 50 therefore the youngest child is 6 years old answer : a
ARC-Challenge
arc_04_02565
A pesticide gets into the waters of the Everglades and wipes out many of the fish, amphibian and bird populations on which alligators depend for food. Which change would most likely occur among the alligator population?
[ "increase in the reproduction rate", "decrease in the number of alligator deaths", "increase in aggression between individuals", "decrease in the number of alligators migrating" ]
C
null
ARC-Easy
arc_04_00888
A recent scientific study funded by a medical corporation concluded that its product is not as harmful as consumers have reported. Identify a possible problem with this study.
[ "Corporate scientists have less training than other scientists.", "The results of the study may be influenced by bias.", "Privately funded science is not verified by other scientists.", "The study cannot be repeated with the same results." ]
B
null
math_qa
mathqa_03_03293
a sum of money is to be distributed among a , b , c , d in the proportion of 5 : 2 : 4 : 3 . if c gets $ 500 more than d , what is a ' s share ?
[ "$ 1200", "$ 1600", "$ 2000", "$ 2500" ]
D
"let the shares of a , b , c and d be 5 x , 2 x , 4 x and 3 x respectively . then , 4 x - 3 x = 500 x = $ 500 a ' s share = 5 x = 5 * $ 500 = $ 2500 the answer is d ."
math_qa
mathqa_03_01649
sophia finished 2 / 3 of a book . she calculated that she finished 90 more pages than she has yet to read . how long is her book ?
[ "229", "270", "877", "266" ]
B
let xx be the total number of pages in the book , then she finished 23 ⋅ x 23 ⋅ x pages . then she has x − 23 ⋅ x = 13 ⋅ xx − 23 ⋅ x = 13 ⋅ x pages left . 23 ⋅ x − 13 ⋅ x = 9023 ⋅ x − 13 ⋅ x = 90 13 ⋅ x = 9013 ⋅ x = 90 x = 270 x = 270 so the book is 270 pages long . answer : b
openbookqa
obqa_02_04854
the alps were formed by rock what?
[ "growing", "melting", "erupting", "creasing" ]
D
the Alps were formed by rock folding
openbookqa
obqa_02_03551
To encourage population growth in an area
[ "dry out any water sources", "add another water feature", "plant more toxic flowers", "kill off any prey" ]
B
as the available water in an environment increases , the populations of organisms in that environment will increase
medmcqa
medmcqa_05_02041
Not a boundary of gastrinoma triangle:
[ "Junction of 2nd and 3rd part of duodenum", "Junction of 3rd and 4th part of duodenum", "Junction of head with body of pancreas", "Junction of cystic duct with common bile duct" ]
B
Ans. (b) Junction of 3rd and 4th part of duodenumPassaro Triangle:Boundaries:* 2nd and 3rd part of duodenum* Cystic duct and CBD junction* Neck of pancreas
sciq
sciq_01_03142
The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back. it serves to protect the brain, spinal cord, heart, and what else?
[ "ovaries", "knees", "intestines", "lungs" ]
D
The Axial Skeleton The skeleton is subdivided into two major divisions—the axial and appendicular. The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back (Figure 7.2). It serves to protect the brain, spinal cord, heart, and lungs. It also serves as the ...
sciq
sciq_01_05375
When vascular disease causes stiffening of arteries, compliance is reduced and resistance to blood flow is increased. the result is more turbulence, higher pressure within the vessel, and reduced blood flow. this increases the work of this?
[ "muscles", "heart", "brain", "lung" ]
B
Compliance Compliance is the ability of any compartment to expand to accommodate increased content. A metal pipe, for example, is not compliant, whereas a balloon is. The greater the compliance of an artery, the more effectively it is able to expand to accommodate surges in blood flow without increased resistance or bl...
sciq
sciq_01_10277
Which kind of flowers carry both male and female floral organs?
[ "stunning flowers", "creating flowers", "Upward Flowers", "perfect flowers" ]
D
Figure 14.25 This image depicts the structure of a perfect and complete flower. Perfect flowers carry both male and female floral organs. (credit: modification of work by Mariana Ruiz Villareal).
math_qa
mathqa_03_04272
two trains of equal lengths take 10 sec and 20 sec respectively to cross a telegraph post . if the length of each train be 120 m , in what time will they cross other travelling in opposite direction ?
[ "16 sec", "13 sec", "17 sec", "21 sec" ]
B
"speed of the first train = 120 / 10 = 12 m / sec . speed of the second train = 120 / 20 = 6 m / sec . relative speed = 12 + 6 = 18 m / sec . required time = ( 120 + 120 ) / 18 = 13 sec . answer : b"
sciq
sciq_01_09934
Do tropical regions have very high or very low rates of immigration?
[ "very high", "low", "medium", "too high" ]
A
medmcqa
medmcqa_05_02772
When a muscle is not contracting, actin and myosin are prevented from reacting by:
[ "Troponin-tropomyosin", "Phosphocreatine", "Heavy meromyosin", "Acetylcholinesterase" ]
A
When a muscle is not contracting, actin and myosin are prevented from reacting by troponin-tropomyosin. Tropomyosin covers the active sites on actin filaments which prevents myosin heads from attachment. Troponin must bind with Ca++ in order to cause the tropomyosin to move off the active sites. Phosphocreatine has a h...
medmcqa
medmcqa_05_03786
Drug of choice for neurocysticercosis is:
[ "Praziquantel", "Albendazole", "Levamisole", "Piperazine" ]
B
Out of the two anthelmintics effective in killing cysticerci, albendazole is now preferred over praziquantel for the following reasons: * The course of treatment is shoer (8-15 day) compared to praziquantel (15-30 days). * Cure rates in terms of resolution of symptoms and disappearance of cysts are higher (75-85% with ...
sciq
sciq_01_02817
A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into these?
[ "specialized cells", "germ cells", "infectious cells", "clones" ]
A
Stem Cells A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells. Stem cells are divided into several categories according to their potential to differentiate. The first embryonic cells that arise from the division of the zy...
medmcqa
medmcqa_05_03096
Miss B, a 27 year old nurse had extracurricular interest in trekking and painting. She broke up relationship with her boy friend. Two months later she lost interest in her hobbies and was convinced that she would not be able to work again. She thought life was not woh living and has consumed 60 tablets of phenobarbiton...
[ "Adjustment disorder", "Conversion disorder", "Depressive disorder", "Post-traumatic stress disorder (PTSD)" ]
A
Adjustment disorder is a reaction to an identifiable psychosocial stressor, that leads to maladaptive reactions including impairment in occupational functioning and symptoms that are in excess of normal and expected reaction to this stressor. Symptoms of adjustment disorder with depressed mood includes tearfulness and ...
openbookqa
obqa_02_04540
This is likely magnetic:
[ "the innards of a cow", "the innards of an iPhone", "the innards of a head", "the innards of a tree" ]
B
metal is sometimes magnetic
sciq
sciq_01_07849
What is another term for all eukaryotic organisms that are neither animals, nor plants, nor fungi?
[ "arthropods", "paramecium", "protists", "prokaryotes" ]
C
Protists are eukaryotes , which means their cells have a nucleus and other membrane-bound organelles. Most, but not all, protists are single-celled. Other than these features, they have very little in common. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.
openbookqa
obqa_02_01558
Rain at the apex of a pyramid will end up
[ "on your shoes", "on the side", "at the footing", "at the top" ]
C
water flows down a slope
math_qa
mathqa_03_03857
jane started baby - sitting when she was 20 years old . whenever she baby - sat for a child , that child was no more than half her age at the time . jane is currently 32 years old , and she stopped baby - sitting 10 years ago . what is the current age of the oldest person for whom jane could have baby - sat ?
[ "20", "21", "22", "23" ]
C
check two extreme cases : jane = 20 , child = 10 , years ago = 32 - 20 = 12 - - > child ' s age now = 10 + 12 = 22 ; jane = 22 , child = 11 , years ago = 32 - 22 = 10 - - > child ' s age now = 11 + 10 = 21 . answer : c .
sciq
sciq_01_08160
What occurs when there is little to no rain in a period of time?
[ "pollution", "droughts", "floods", "hurricanes" ]
B
ARC-Challenge
arc_04_02238
Why are alternative fuels being used in some automobiles?
[ "Alternative fuels are at every gas station.", "Gasoline comes from a limited resource.", "Alternative fuels cause pollution.", "Gasoline engines are too expensive to make." ]
B
null
openbookqa
obqa_02_02494
Which of these could add unwanted contamination to the natural environment?
[ "making compost", "hoarding trash", "eating fruit", "burning liquid petroleum" ]
D
burning oil is a source of pollution
math_qa
mathqa_03_02523
how long does a train 110 m long traveling at 60 kmph takes to cross a bridge of 150 m in length ?
[ "sec", "sec", "sec", "sec" ]
D
"d = 110 + 150 = 260 m s = 60 * 5 / 18 = 50 / 3 t = 260 * 3 / 50 = 15.6 sec answer : d"
ARC-Challenge
arc_04_02471
Uranus is one of the outer planets of the solar system. The average distance of Uranus from the Sun is 2.87 billion kilometers. Which best explains why Uranus revolves in its orbit instead of moving out into space?
[ "The orbit of Neptune limits Uranus.", "Gravity pulls Uranus toward the Sun.", "Electromagnetic energy pulls on Uranus.", "Other planets have the same mass as Uranus." ]
B
null
ARC-Challenge
arc_04_02451
New evidence suggests that "hot spots" may form in response to "twisting" stresses on plates. It is theorized that these stresses may eventually result in the splitting apart of the tectonic plate in the area of the hot spot. Which of the geographic features would be affected most by the splitting of a tectonic plate?
[ "the Himalayas", "the Hawaiian Islands", "the San Andreas Fault", "the Mid-Atlantic Ridge" ]
B
null
sciq
sciq_01_01182
What kind of diagrams can be used to illustrate electron movements and ion formation?
[ "electron dot diagrams", "contour maps", "venn diagrams", "atomic models" ]
A
Electron dot diagrams can be used to illustrate electron movements and ion formation.
ARC-Challenge
arc_04_02564
What is the main source of heat for Earth's surface?
[ "fire", "lightning", "the Sun", "the ocean" ]
C
null
ARC-Easy
arc_04_01691
In your body, what two organs work together to make sure that oxygen gets to all the other organs of your body?
[ "Lungs and kidneys", "Heart and lungs", "Brain and kidneys", "Heart and liver" ]
B
null
sciq
sciq_01_00095
When water goes above and below its freezing point, what rock-breaking phenomenon is common?
[ "ice crushing", "ice inverting", "ice locking", "ice wedging" ]
D
Rocks can break apart into smaller pieces in many ways. Ice wedging is common where water goes above and below its freezing point ( Figure below ). This can happen in winter in the mid-latitudes or in colder climates in summer. Ice wedging is common in mountainous regions like the Sierra Nevada pictured above.
sciq
sciq_01_02894
What do you call prokaryotes that do not need oxygen for respiration?
[ "enzymatic", "anaerobic", "chloroflexus", "aerobic" ]
B
Anaerobic prokaryotes do not need oxygen. They use fermentation or other methods of respiration that don’t require oxygen. In fact, some cannot tolerate oxygen. An example is a bacterium that infects wounds and kills tissues, causing a condition called gangrene.
math_qa
mathqa_03_02144
lovely shop runs a sale on goldfish and platys . if one customer buys 13 goldfish and 12 platys for $ 5.60 , and another buys 14 goldfish and 21 platys for $ 8.05 , what is the ratio of the price of goldfish to platys ?
[ "0.8", "0.75", "c", "5 / 7" ]
D
the approach of plugging in the numbers is a fine approach . but , in this case , the answer was the first option and thus , by plugging in a number in the ration given , we arrived at the answer quickly ! however , what if the correct ratio was option d or c ? in any case , the algebraic solution is n ' t that complex...
medmcqa
medmcqa_05_02241
Zafirlukast used in asthmatic patients acts by
[ "Phosphodiesterase inhibition", "Endothelium receptor blockage", "Leukotriene receptor blockage", "Lipoxygenase inhibitor" ]
C
Drugs for Bronchial AsthmaMechanism of actionDrugsBronchodilators b2 sympathomimetics Salbutamol, Terbutaline, Bambuterol, Salmeterol, Formoterol, Ephedrine Methylxanthine Theophylline, Aminophylline, Choline theophyllineAnticholinergics Ipratropium bromide, Tiotropium bromide Leukotriene antagonist Montelukast, Zafirl...
openbookqa
obqa_02_01808
How many divisions of particular weather patterns and hours of daylight is a year divided into?
[ "4", "long", "3", "12" ]
A
a new season occurs four times per year
sciq
sciq_01_01117
In vertebrates, what structure runs from the brain to the tail end of the backbone?
[ "ribcage", "backbone", "aortic valve", "spinal cord" ]
D
Vertebrates have a centralized nervous system. As shown in Figure below , the nervous system consists of a brain in the head region. It also includes a long spinal cord that runs from the brain to the tail end of the backbone. Long nerve fibers extend from the spinal cord to muscles and organs throughout the body.
openbookqa
obqa_02_01819
Sea horses require
[ "leather harnesses", "jockeys", "black stallions", "the sun" ]
D
the sun is the source of energy for life on Earth
sciq
sciq_01_06644
Light with the shortest wavelength appears as what color?
[ "violet", "green", "blue", "red" ]
A
The wavelength of visible light determines the color that the light appears. Light with the longest wavelength appears red, and light with the shortest wavelength appears violet. In between are the wavelengths of all the other colors of light.
sciq
sciq_01_03056
After a massive eruption what will a mountain collapsing above an empty chamber create?
[ "cavern", "valley", "crater", "caldera" ]
D
During a massive eruption all of the material may be ejected from a magma changer. Without support, the mountain above the empty chamber may collapse. This produces a huge caldera . Calderas are generally round, bowl-shaped formations like the picture in Figure below .
math_qa
mathqa_03_01035
seven 6 faced dice are thrown together . the probability that all the three show the same number on them is ?
[ "1 / 32", "1 / 46656", "1 / 33", "1 / 38" ]
B
"the three dice can fall in 6 * 6 * 6 * 6 * 6 * 6 * 6 = 279936 ways . hence the probability is 6 / 279936 = 1 / 46656 answer : b"
sciq
sciq_01_02459
What broad category of animals shows adaptations from water-dwelling to land-dweller, including the ability to breathe air and legs to move on land?
[ "birds", "herbivores", "reptiles", "amphibians" ]
D
Amphibians! In order for water-dwelling animals to adapt to life on land, many new adaptations had to take place. First, they needed to be able to breathe air instead of obtaining oxygen from water. And fins don't work well as legs! They needed to be able to move around well on land.
medmcqa
medmcqa_05_00987
Which of the following works on relaistic principle according to structural theory of mind
[ "Id", "Ego", "Preconscious", "Super ego" ]
B
Id works on pleasure principle Superego works on morality principle Ego works on reality principle & balances between Id & superego.
medmcqa
medmcqa_05_00762
Drug that does not interferes with antacid: March 2005
[ "Tetracyclin", "Norfloxacin", "Azithromycin", "Ranitidine" ]
C
Ans. C: Azithromycin Drugs less absorbed when taking antacids include Tetracycline Antifungals Propranolol Captopril Ranitidine Famotidine Fexofenadine Quinolone-Nalidixic acid, Norfloxacin, Ciprofloxacin, Gatifloxacin Iron supplements. Antacids can also potentiate (make stronger) the following drugs Valproic acid Sulf...
math_qa
mathqa_03_02047
a 220 m long train running at the speed of 120 km / hr crosses another train running in opposite direction at the speed of 80 km / hr in 9 sec . what is the length of the other train ?
[ "280", "270", "260", "250" ]
A
"relative speed = 120 + 80 = 200 km / hr . = 200 * 5 / 18 = 500 / 9 m / sec . let the length of the other train be x m . then , ( x + 220 ) / 9 = 500 / 9 = > x = 280 . answer : option a"
sciq
sciq_01_09199
An infection may be intracellular or extracellular, depending on this?
[ "microbes", "pathogen", "bacteria", "pollen" ]
B
22.3 Magnetic Fields and Magnetic Field Lines • Magnetic fields can be pictorially represented by magnetic field lines, the properties of which are as follows: 1. The field is tangent to the magnetic field line. Field strength is proportional to the line density. Field lines cannot cross. Field lines are continuous loo...
medmcqa
medmcqa_05_02990
A man was found with suicidal gunshot on right temple with the gun in his right hand. The skull was burst open. There was charring and cherry red coloration in the track inside. Range of the shot is: AIIMS 12
[ "Contact shot", "Close shot at a distance of 1 feet", "Shot within range of 2 feet", "Shot within range of 3 feet" ]
A
Ans. Contact shot
math_qa
mathqa_03_02584
how many numbers from 10 to 40 are exactly divisible by 3 ?
[ "13", "15", "16", "10" ]
D
"12 , 15 , 18 , 21 , 24 , 27 , 30 , 33 , 36 , 39 . 10 numbers . 10 / 3 = 3 and 40 / 3 = 13 = = > 13 - 3 = 10 . therefore 10 digits d )"
ARC-Easy
arc_04_00374
A scientist developed a model that described the actions of DNA in the cell nuclei, which helped explain how traits were inherited. Which scientist helped develop this model?
[ "Bohr", "Hooke", "Mendel", "Watson" ]
D
null
ARC-Easy
arc_04_01994
Which adaptation allows a walrus to stay warm in cold water?
[ "reddish coat", "bristly mustache", "wrinkled skin", "thick layer of blubber" ]
D
null
openbookqa
obqa_02_03921
You can hear
[ "a electric viola", "a perfume", "a thought", "a prism" ]
A
strumming a string can cause that string to vibrate
openbookqa
obqa_02_01453
If one mineral can scratch another then the scratched mineral is what?
[ "strong", "soft spoken", "potent", "mushy" ]
D
if one mineral can scratch another mineral then that other mineral is softer than that one mineral
sciq
sciq_01_08952
What organism constitutes frothy green "pond scum"?
[ "algae", "bacteria", "protozoa", "sponges" ]
A
Polluted water can form a frothy green scum on the surface. This "pond scum" is actually a living organism, algae. The algae are plant-like protists. Usually the algae are too small to notice, but sometimes algae grow in excess because of the excess nutrients in polluted water.
sciq
sciq_01_06097
What does viscosity do to liquids?
[ "condusive to flowing", "resistant to flowing", "responsive to flowing", "salinity to flowing" ]
B
Viscosity is a liquid’s resistance to flowing. You can think of it as friction between particles of liquid. Thicker liquids are more viscous than thinner liquids. For example, the honey pictured in the Figure below is more viscous than the vinegar. You can learn more about viscosity at this URL: http://chemed. chem. wi...
medmcqa
medmcqa_05_03627
Death of unborn child by an act of parents comes under IPC?
[ "302", "316", "300", "314" ]
B
Ans. is 'b' i.e., 316o Death of quick unborn child by act amounting to culpable homicide (10 years imprisonment + fine) -316IPCo Murder (defining murder)- 300 IPCo Punishment for murder (death or life imprisonment) - 302 IPCo Death of patient caused by miscarriage (10 years of imprisonment +- fine) - 314 IPC
openbookqa
obqa_02_03895
One way to retain your own thermal energy is to
[ "sit in snow", "wear fluffy socks", "sleep in freezers", "bathe in ice" ]
B
a thermal insulator slows the transfer of heat
sciq
sciq_01_09765
What is needed to create muscles, regulate chemical reactions, and transport oxygen?
[ "cytoplasm", "proteins", "enzymes", "lipids" ]
B
Your body needs proteins to create muscles, regulate chemical reactions, transport oxygen, and perform other important tasks in your body. But how are these proteins built? They are made up of units called amino acids. Just like there are only a few types of blocks in a set, there are a limited number of amino acids. B...
sciq
sciq_01_06050
Cells in a biofilm secrete what to recruit nearby cells?
[ "signaling proteins", "harnessing molecules", "signaling molecules", "signaling neurons" ]
C
medmcqa
medmcqa_05_02841
Buggery is term used commonly for
[ "Sodomy", "Buccal coitus", "Tribadism", "Bestiality" ]
A
Sodomy Sodomy is anal intercourse with another man or woman. Anal intercourse between man and woman is generally termed as buggery Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 308
medmcqa
medmcqa_05_02024
Most common manifestation of HPV infection in children :
[ "Single papilloma", "Multiple papillomatosis", "Osteoma", "Sarcoma" ]
B
Multiple warts are common.
sciq
sciq_01_11277
The bending of a wave around the edges of an opening or an obstacle is called this?
[ "diffraction", "absorption", "reflection", "sputtering" ]
A
contain the carbonyl functional group (C=O; part (a) in Figure 24.14 "The Oxidation State of Carbon in Oxygen- and Nitrogen-Containing Functional Groups"). Alcohols are classified as primary, secondary, or tertiary, depending on whether the –OH group is bonded to a primary, secondary, or tertiary carbon. For example, t...
math_qa
mathqa_03_04830
if the sum of a number and its square is 210 , what is the number ?
[ "16", "14", "25", "87" ]
B
"explanation : let the integer be x . then , x + x 2 = 210 x 2 + x - 210 = 0 ( x + 15 ) ( x – 14 ) = 0 x = 14 answer : b"
openbookqa
obqa_02_02560
Eric is pushing a box up a ramp. He notices that it is much more difficult than it was a couple of hours earlier. This could be due to
[ "The box is a lot lighter than it was earlier", "the box being grey", "his box being more voluminous", "the ramp is more high angle then it was earlier" ]
D
an inclined plane is used for raising objects
ARC-Challenge
arc_04_02919
In 1783, Europe was unusually cold and foggy. The rain was acidic. Which event most likely caused the unusual climate in Europe that year?
[ "A logging company deforested millions of acres in South America.", "A major earthquake and tsunami changed the path of the Gulf Stream.", "A major volcanic eruption released ash and sulfur gas into the atmosphere.", "An increase in the use of automobiles released more carbon dioxide into the atmosphere." ]
C
null
medmcqa
medmcqa_05_03697
Which drug has inverse agonist activity at benzodiazepine receptors?
[ "Flumazenil", "Beta carboline", "Naltrexone", "Zopiclone" ]
B
Benzodiazepine Binding Site Ligands: The components of the GABA A receptor-chloride ion channel macromolecule that function as benzodiazepine binding sites exhibit heterogeneity. Three types of ligand-benzodiazepine receptor interactions have been repoed: Agonists: facilitate GABA actions, and this occurs at multiple B...
sciq
sciq_01_07660
Nucleic acids contain the information needed for cells to make what?
[ "metabolytes", "lipids", "protons", "proteins" ]
D
The order of bases in nucleic acids is highly significant. The bases are like the letters of a four-letter alphabet. These "letters" can be combined to form "words. " Groups of three bases form words of the genetic code . Each code word, called a codon, stands for a different amino acid. A series of many codons spells ...
medmcqa
medmcqa_05_03963
The histology of pterygium includes:
[ "Elastotic degeneration", "Epithelial inclusion bodies", "Precancerous changes", "Squamous metaplasia of the epithelium" ]
A
Ans. Elastotic degeneration
sciq
sciq_01_02440
What is the name of the process by which plants use energy from sunlight to synthesize carbohydrates?
[ "cellular respiration", "photosynthesis", "osmosis", "pollination" ]
B
Photosynthesis is the process by which plants use energy from sunlight to synthesize carbohydrates.
sciq
sciq_01_01240
Aging occurs as cells lose their ability to do what?
[ "build", "grow", "divide", "join" ]
C
During early adulthood, people form intimate relationships and start careers. Serious health problems start showing up in middle adulthood and old age. Aging occurs as cells lose their ability to divide.
math_qa
mathqa_03_02003
if a certain number x is divided by 82 , the reminder is 5 . what is the reminder when x + 17 is divided by 41 ?
[ "3", "5", "6", "22" ]
D
"x can be written as 82 k + 5 or x = 5 , 87,169 , etc . x + 17 = 82 k + 5 + 17 = 82 k + 22 or x + 17 = 22,104 , 186 etc . when divided by 41 , we will get the remainder 22 . d"
sciq
sciq_01_01630
What does fiber help keep at normal levels in the body?
[ "sugar and lipids", "hydration", "salt and cholesterol", "bloodpressure" ]
A
Fiber is a complex carbohydrate that consists mainly of cellulose and comes only from plants. High-fiber foods include whole grains and legumes such as beans. Fiber can’t be broken down by the digestive system, but it plays important roles in the body. It helps keep sugar and lipids at normal levels in the blood. It al...
openbookqa
obqa_02_00270
seeds are often found inside a
[ "banana", "cherry", "olive", "strawberry" ]
B
a berry contains seeds
ARC-Easy
arc_04_02028
A student describes a substance as lacking a definite shape. The description also states that the particles of matter are close to each other but still able to flow past each other. Which type of substance is the student most likely describing?
[ "solid", "liquid", "mixture", "compound" ]
B
null
openbookqa
obqa_02_03164
What can be renewed?
[ "plastics", "leather", "coal", "diesel" ]
B
a renewable resource can be renewed
medmcqa
medmcqa_05_00748
Which of the following does NOT scavenge free radicals in the lens?
[ "Vit A", "Vit C", "Vit E", "Catalase" ]
A
Vitamin A Repeat from - May 08 & May 07 Antioxidant mechanisms within lens - Superoxide dismutase - Glutathione peroxidase - Catalase - Vitamin C (Ascorbic acid) - Vitamin E
ARC-Easy
arc_04_01557
Which explains the pattern of day and night?
[ "Earth orbits the sun.", "Earth spins on its axis.", "The sun only transmits light energy during the daytime.", "The sun only transmits light energy above the equator." ]
B
null
openbookqa
obqa_02_03180
A person with a pet amphibian will likely feed it
[ "meal worms", "deer", "steak", "wax" ]
A
a frog eats insects
sciq
sciq_01_09373
What are bones made up of?
[ "tissues", "muscles", "molecules", "platelets" ]
A
Bones are made up of different types of tissues.
medmcqa
medmcqa_05_04695
Variant of papillary carcinoma thyroid
[ "Medullary", "Wahin", "Columnar cell", "Insular" ]
C
Papillary carcinoma common in female and younger age group . Its called hormone dependend tumour. Types: tall cell type - very aggresive type show capsular and vascular invasion. Columnar type- seen in males . Treatment :total oe near total thyroidectomy Suppresive dose of L thyroxine. SRB's Manual of Surgery.Edition -...
ARC-Easy
arc_04_01097
Which has the greatest effect on aiding the movement of blood through the human body?
[ "tension", "friction", "density", "gravity" ]
D
null
medmcqa
medmcqa_05_02089
Which of the following is most useful for reversing severe ergot induced vasospasm?
[ "Ergotamine", "Methysergide", "Nitroprusside", "Phenoxybenzamine" ]
C
Nitroprusside is a mixed dilator and is highly effective agent against ergot induced vasospasm. It is also the drug of choice for most of the hypeensive emergencies.
medmcqa
medmcqa_05_04260
Triple assessment for carcinoma breast includes:
[ "History, clinical examination, biopsy/cytology", "Clinical examination, Mammography, biopsy/cytology", "History, clinical examination, Ultrasonography", "Observation, Ultrasonography, biopsy/cytology" ]
B
B i.e. Clinical examination, Mammography, biopsy/cytology In any patient who presents with a breast lump or other symptoms suspicious of carcinoma, the triple diagnostic approach is used to confirm the diagnosis. Triple assessmentQ comprises of :? - Clinical examination - Radiological imaging - mammography or ultrasoun...
openbookqa
obqa_02_03904
some humans live in
[ "volcanoes", "bombs", "constructed environment repellents", "leaves" ]
C
some humans live in houses
math_qa
mathqa_03_03823
a 1200 m long train crosses a tree in 120 sec , how much time will i take to pass a platform 600 m long ?
[ "266 sec", "180 sec", "776 sec", "166 sec" ]
B
"l = s * t s = 1200 / 120 s = 10 m / sec . total length ( d ) = 1800 m t = d / s t = 1800 / 10 t = 180 sec answer : b"
math_qa
mathqa_03_03920
an aeroplane covers a certain distance at a speed of 320 kmph in 4 hours . to cover the same distance in 1 2 / 3 hours , it must travel at a speed of :
[ "520", "620", "820", "768" ]
D
"distance = ( 240 x 5 ) = 1280 km . speed = distance / time speed = 1280 / ( 5 / 3 ) km / hr . [ we can write 1 2 / 3 hours as 5 / 3 hours ] required speed = ( 1280 x 3 / 5 ) km / hr = 768 km / hr answer d ) 768 km / hr"
sciq
sciq_01_09794
When do homologous chromosomes form pairs?
[ "mitosis", "transcripton", "meiosis", "metathesis" ]
C
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between non-sister chromatids of homologous chromosomes. It results in new combinations of genes on each chromosome.
medmcqa
medmcqa_05_01251
Which of the following economic evaluation is best for healthcare:
[ "Cost Benefit Analysis", "Cost Utility Analysis", "Cost Effective Analysis", "Cost Minimization Analysis" ]
C
Economic Evaluation:
openbookqa
obqa_02_03019
in order for a person's burger to make it successfully into the toilet, which of these must be functional?
[ "the respiratory system", "the digestive system", "the circulatory system", "the destructive system" ]
B
the digestive system digests food for the body
sciq
sciq_01_11541
What type of compounds can form crystals?
[ "ionic compounds", "molecular compounds", "integral compounds", "magnetic compounds" ]
A
Many compounds form molecules, but ionic compounds form crystals instead. A crystal consists of many alternating positive and negative ions bonded together in a matrix. Look at the crystal of sodium chloride (NaCl) in the Figure below . The sodium and chloride ions are attracted to each other because they are oppositel...
ARC-Easy
arc_04_00378
The metal lid on a glass jar is hard to open, so it is held under warm, running water. What causes the jar to open easily after it was held under the water?
[ "The water increased the pressure under the lid.", "The jar shrunk with the warm water.", "The water acted as a lubricant between the glass and the metal.", "The metal lid expanded under warm water." ]
D
null
sciq
sciq_01_01595
What often form symbiotic associations with much larger organisms?
[ "prokaryotes", "viruses", "eukaryotes", "protists" ]
A
medmcqa
medmcqa_05_04922
Parietal cells secrets:
[ "Pepsinogen", "HCI", "Mucous", "Pepsin" ]
B
HCI
sciq
sciq_01_10647
Most autotrophs make their "food" through which process, using the energy of the sun?
[ "atherosclerosis", "photosynthesis", "glycolysis", "oculitis" ]
B
Autotrophs store chemical energy in carbohydrate food molecules they build themselves. Most autotrophs make their "food" through photosynthesis using the energy of the sun.