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sciq
sciq_01_11050
Unlike the passive form, the sodium-potassium pump uses what type of transport?
[ "High", "Low", "phase", "active" ]
D
Mariana Ruiz Villarreal (User:LadyofHats/Wikimedia Commons), modified by Hana Zavadska. The sodium-potassium pump uses active transport . Public Domain.
math_qa
mathqa_03_00191
what is the greatest value of x such that 4 ^ x is a factor of 21 ! ?
[ "5", "6", "3", "2" ]
B
pretty simple , really . if m = 6 , then 4 m = 24 , which is 12 x 2 , both of which are included in 21 ! since 6 is the largest number here , its the answer . answer is b
sciq
sciq_01_04494
What type of energy travels through space as electrical and magnetic waves?
[ "sound energy", "electromagnetic energy", "mechanical energy", "solar energy" ]
B
4. Electromagnetic energy is energy that travels through space as electrical and magnetic waves. The light flooding the stage in the Figure above is one type of electromagnetic energy. Other types include radio waves, microwaves, X rays, and gamma rays.
ARC-Challenge
arc_04_03203
In a grassland ecosystem, organisms of the same species eat the same food. When there is a lack of rain, which is most likely increased?
[ "carrying capacity", "population density", "competition for space", "competition for resources" ]
D
null
sciq
sciq_01_01879
In what kind of a series does the genetic code work?
[ "universal codes", "three-letter codes", "four-letter codes", "nine letter-codes" ]
B
The genetic code works as a series of three-letter codes. Each sequence of three letters, called a triplet, corresponds to one of the twenty common amino acids. The triplets are read by the cell, one after the other, in the process of protein synthesis. The Table below shows all of the possible triplets and the amino a...
medmcqa
medmcqa_05_03114
Most common form of extra-pulmonary TB is?
[ "TB CNS", "TB Lymphadenitis", "TB Genito-urinary", "Potts spine" ]
B
MC form extra-pulmonary TB is Cervical lymphadenitis (TB lymphadenitis) | Diagnosed by FNAC
ARC-Challenge
arc_04_02174
Which celestial object listed below has the greatest density?
[ "a planet", "a comet", "a nebula", "a neutron star" ]
D
null
medmcqa
medmcqa_05_04576
An infant present with bilateral white pupillary reflex. On slit lamp examination a zone of opacity is observed arround the fetal nucleus with spoke like radial opacities. The most likely diagnosis is-
[ "Cataracta Centralis Pulverulenta", "Lamellar cataract", "Coronary cataract", "Posterior polar cataract" ]
B
lamellar cataract - opacities in the foetal nucleus and which are small linear like spokes of a wheel towards the equator. Cataracta centralis pulverulenta - small rounded opacity lying exactly in the centre of the lens. Coronary cataract - opacities are often many hundreds in number and have a regular radial distribut...
math_qa
mathqa_03_00695
you enter a weight loss challenge game and manage to lose 15 % of your body weight . for the final weigh in you are forced to wear clothes that add 2 % to your weight . what percentage of weight loss is measured at the final weigh in ?
[ "13.3 %", "9.22 %", "9 %", "14 %" ]
A
"( 100 % - 15 % ) * ( 100 % + 2 % ) = 0.85 * 1.02 = 13.3 % the weigh in records your weight loss at 13.3 % ! the answer is a"
openbookqa
obqa_02_02535
Plants are unable to grow without soil because soil is where the plants get their
[ "TV shows", "sustenance", "friends", "candy" ]
B
soil contains nutrients for plants
sciq
sciq_01_09791
What is the name for a way of learning that involves reward or punishment?
[ "subjective", "objective", "instinct", "conditioning" ]
D
Conditioning is a way of learning that involves a reward or punishment. Did you ever train a dog to fetch a ball or stick by rewarding it with treats? If you did, you were using conditioning. Another example of conditioning is shown in the video below; the rats have been taught to “play basketball” by being rewarded wi...
sciq
sciq_01_06239
What type of radiation from the sun reaches earth across space striking everything on earth’s surface?
[ "particle", "seismic", "electromagnetic", "static" ]
C
Electromagnetic radiation from the sun reaches Earth across space. It strikes everything on Earth’s surface, including these volleyball players.
ARC-Challenge
arc_04_02503
Which of these is a mixture?
[ "salt water", "sugar", "water vapor", "salt" ]
A
null
openbookqa
obqa_02_00123
Trembling muscles spasms in animals can be caused in party by
[ "temperature in single digits", "temperatures in triple digits", "finding the right temperatures", "being unaware of the temperature" ]
A
cool temperatures cause animals to shiver
ARC-Challenge
arc_04_02349
How can you make liquid water become solid?
[ "Put the water in a very cold place.", "Heat the water on the stove.", "Shake the water container very fast.", "Add a lot of salt to the water." ]
A
null
sciq
sciq_01_02636
What are non-steroid hormones made of?
[ "proteins", "Molecules", "amino acids", "fats" ]
C
Non-steroid hormones are made of amino acids. They are not fat soluble, so they cannot diffuse across the plasma membrane of target cells. Instead, a non-steroid hormone binds to a receptor on the cell membrane (see Figure below ). The binding of the hormone triggers an enzyme inside the cell membrane. The enzyme activ...
sciq
sciq_01_04120
Incomplete dominance and epistasis are both terms that define what?
[ "learned behaviors", "genetic relationships", "genetic habits", "genetic difficulties" ]
B
sciq
sciq_01_01214
Are valence electrons attracted more or less strongly when they are farther from the nucleus?
[ "equally", "less strongly", "more strongly", "differently" ]
B
The reactivity of alkaline Earth metals increases from the top to the bottom of the group. That’s because the atoms get bigger from the top to the bottom, so the valence electrons are farther from the nucleus. When valence electrons are farther from the nucleus, they are attracted less strongly by the nucleus and more ...
ARC-Easy
arc_04_01210
Martin is writing a report for science class about how the tilt of Earth affects living organisms. Which subject should Martin include in his report that is directly affected by Earth's tilt?
[ "night and day", "cloud formation", "phases of the Moon", "changing of the seasons" ]
D
null
medmcqa
medmcqa_05_00030
Nakayama strain used for which vaccine ?
[ "Typhoid", "Chicken pox", "Japanese encephalitis", "Yellow fever" ]
C
Strains used for JE vaccines:- Nakayama strain Beijing strain
medmcqa
medmcqa_05_03251
The physical half life of radioactive iodine 131 is
[ "8 hours", "8 days", "16 days", "60 days" ]
B
RADIOACTIVE IODINE The stable isotope of iodine is 127I. Its radioactive isotope of medicinal impoance is: 131I physical half-life of iodine 131 is 8 days. Mech of action:- 131I emits X-rays as well as b paicles. latter are utilized for their destructive effect on thyroid cells. 131I is concentrated by thyroid, incorpo...
sciq
sciq_01_03062
What is the distance north or south of the equator called?
[ "elevation", "circumference", "latitude", "longitude" ]
C
Latitude is the distance north or south of the Equator. It is expressed as a number between 0° and 90° north or south.
openbookqa
obqa_02_02132
Just a few days ago, Beth waded into her family's pond. Now when she stepped off the bank the pond was hard and she could walk on the surface. What happened?
[ "a cold front had moved into the area", "The pond had drained into an underground river", "There was a lot of algae on the pond's surface", "It had rained the night before" ]
A
freezing causes a solid to form
sciq
sciq_01_08901
Prior to birth, the lungs are filled with amniotic fluid, mucus, and what else?
[ "air", "surfactant", "blood", "plasma" ]
B
Birth Prior to birth, the lungs are filled with amniotic fluid, mucus, and surfactant. As the fetus is squeezed through the birth canal, the fetal thoracic cavity is compressed, expelling much of this fluid. Some fluid remains, however, but is rapidly absorbed by the body shortly after birth. The first inhalation occur...
math_qa
mathqa_03_01120
a vendor bought toffees at 6 for a rupee . how many for a rupee must he sell to gain 80 % ?
[ "10.8", "20.8", "28.8", "18.8" ]
C
"c . p . of 6 toffees = re . 1 s . p . of 6 toffees = 480 % of re . 1 = rs . 24 / 5 for rs . 24 / 5 , toffees sold = 6 . for re . 1 , toffees sold = 6 x 24 / 5 = 28.8 . answer c"
sciq
sciq_01_04741
What is the term for a watertight seal between two adjacent animal cells?
[ "cell wall", "placental barrier", "tight junction", "cell membrane" ]
C
A tight junction is a watertight seal between two adjacent animal cells (Figure 3.17b). Proteins hold the cells tightly against each other. This tight adhesion prevents materials from leaking between the cells. Tight junctions are typically found in the epithelial tissue that lines internal organs and cavities, and com...
ARC-Easy
arc_04_00662
Sugar is composed of carbon, hydrogen, and oxygen. Sugar is an example of which of the following?
[ "an atom", "a compound", "an electron", "a mixture" ]
B
null
math_qa
mathqa_03_00908
a light flashes every 6 seconds , how many times will it flash in ? of an hour ?
[ "550", "600", "650", "700" ]
B
"1 flash = 6 sec for 1 min = 10 flashes so for 1 hour = 10 * 60 = 600 flashes . answer : b"
medmcqa
medmcqa_05_00911
Erysipelas is caused by
[ "Erysipelothrix rhusiopathie", "Group A beta hemolytic streptococci", "Trichophyton rubrum", "Pseudomonas aeroginosa" ]
B
Erysipelas It is a streptococcal infection of the skin involving the upper subcutaneous tissue and lymphatic vessels. Rarely, Staph. aureus may be the causative agent. causative organism Group A beta haemolytic streptococci The organisms enter through a wound, injury or even subclinically traumatized skin. Edema of tis...
math_qa
mathqa_03_00403
in an election between two candidates - lange and sobel - 70 % of the voters voted for sobel . of the election ` s voters , 60 % were male . if 35 % of the female voters voted for lange , what percentage of the male voters voted for sobel ?
[ "14", "16", "26", "44" ]
D
m f total l 16 14 30 s 44 70 tot 60 40 100 35 % of 40 = 14 - - - - - - female voters that means 16 male voted for l so 60 - 16 = 44 d is correct
medmcqa
medmcqa_05_03110
Ratio of Pleural Fluid protein to serum protein is _______ in transudative pleural effusion
[ "< 0.3", "< 0.4", "< 0.5", "< 0.6" ]
C
Pleural Fluid Protein / Serum. Protein is < 0.5 in transudative effusion.
medmcqa
medmcqa_05_01152
Prostaglandin was discovered from -
[ "Tear", "Saliva", "Seminal fluid", "Blood" ]
C
Ans. is 'c' i.e.. Seminal fluid "The name prostaglandin comes from the prostate gland. When prostaglandin was first isolated from seminal fluid, it was believed to have been added from the prostate. "
medmcqa
medmcqa_05_01474
A 28 -year-old woman, G4P3L2A1 at 35 weeks of gestation with monochornionic monomniotic twin pregnancy was admitted for safe confinement. 3 days following admission, the NST showed the following finding: What is the finding shown in the NST?
[ "Reactive NST", "Variable deceleration", "Early deceleration", "Sinusoidal pattern." ]
B
The deceleration first shows a rapid rise and rapid fall. Secondly it is unrelated to the peak of uterine contraction. In early and late deceleration, there would be a slow fall and slow rise. Early would show an onset before or at peak of uterine contraction and the FHR would return to normal after the end of uterine ...
openbookqa
obqa_02_02860
If an apple tree wanted to spread it's seeds via another entity, it would
[ "plant trees", "feed birds", "attract birds", "drop seeds" ]
C
birds sometimes eat insects
sciq
sciq_01_08872
Each species of legume is associated with a strain of __________
[ "agrobacterium", "fungi", "heliotropium", "rhizobium" ]
D
medmcqa
medmcqa_05_03013
In a randomized controlled trial, the essential purpose of randomization is-
[ "To produce double blinding", "To decrease the follow - up period", "To eliminate the selection bias", "To decrease the sample size" ]
C
Randomization ensures that the investigator has no control over the allocation of paicipants to either study or control groups, thus eliminating what is known as selection bias. In other words by random allocation, every individual gets an equal chance of being allocated into either group or any of the trial groups ( r...
sciq
sciq_01_08897
What still causes fatal lung disease in nonsmokers?
[ "nicotine", "chewing tobacco", "tobacco smoke", "alcohol" ]
C
tobacco smoke causes fatal lung disease in nonsmokers.
openbookqa
obqa_02_02006
the Earth rotating on its axis causes the sun to appear to move across the sky during what?
[ "dark hours", "sunlight deficient", "night", "waking hours" ]
D
the Earth rotating on its axis causes the sun to appear to move across the sky during the day
sciq
sciq_01_01863
All proteins are made of monomers called what?
[ "monotides", "aminotides", "amino acids", "peptides" ]
C
Proteins are molecules that have many different functions in living things. All proteins are made of monomers called amino acids ( Figure below ) that connect together like beads on a necklace ( Figure below ). There are only 20 common amino acids needed to build proteins. These amino acids form in thousands of differe...
openbookqa
obqa_02_02058
Which is likely to be seen at the zoo?
[ "a polar bear in the jungle habitat", "a zebra in the arctic zone", "an alligator in the petting zoo", "a snake under a hot lamp" ]
D
some animals live in zoo exhibits
medmcqa
medmcqa_05_01986
Plateau phase of cardiac muscle impulse conduction is due to inward motion of?
[ "K+", "Na+", "Ca++", "HCO3-" ]
C
Ans. c (Ca++). (Ref. Ganong, Physiology, 21s7pg,78)Myocardial action potentialOccurs in atriol and ventricular myocytes and Purkinje fibers.CARDIAC ACTION POTENTIALMECHANISMPhase 0Rapid upstrokeVoltage-gated Na-channels open.Phase 1Initial repolariozationInactivation of voltage-gated Na+ balances K+ efflux.Phase 2Plate...
medmcqa
medmcqa_05_00875
Hot flushes are experienced as a result of
[ "Increased noradrenaline", "Decreased estrogen", "Increased noradrenaline and decreased estrogen", "Increased noradrenaline and estrogen" ]
C
Hot flushes are caused by noradrenaline, which disturbs the thermoregulatory system. Oestrogen deficiency reduces hypothalamic endorphins, which release more norepinephrine and serotonin. This leads to inappropriate heat loss mechanism. Other causes that can be associated with the symptom of hot flushes include: thyroi...
medmcqa
medmcqa_05_04190
In apoptosis initiation:
[ "The death receptors induce apoptosis when they get engaged by fas ligated system", "Cytochrome C inhibits Apoptosis activating factor -1", "Apoptosis may be initiated by caspase activation", "Apoptosis mediated through DNA damage" ]
A
The death receptors induce apoptosis when they get engaged by fas ligand system Ref, Robbins 9/e p56.
math_qa
mathqa_03_03649
in the rectangular coordinate system , points ( 2 , 0 ) and ( – 2 , 0 ) both lie on circle c . what is the maximum possible value of the radius of c ?
[ "2", "4", "8", "16" ]
A
"the answer is a it takes 3 distinct points to define a circle . only 2 are given here . the two points essentially identify a single chord of the circle c . since no other information is provided , however , the radius of the circle can essentially be anything . all this information tell us is that the radius isgreate...
ARC-Easy
arc_04_01027
What is true of mutualistic relationships among organisms?
[ "The organisms ignore each other.", "The organisms cooperate with each other.", "The organisms prey on each other.", "The organisms compete with each other." ]
B
null
medmcqa
medmcqa_05_04925
In tissue, Coccidioides immitis produces ?
[ "Spherules and endospores", "Encapsulated yeast cells", "Fine, delicate hyphae", "Coarse, septate hyphae" ]
A
Ans. is 'a' i.e., Spherules and endospores Coccidioides immitis . It is a dimorphic fungus with septate hyphae. . Has two forms. White fluffy mould on most culture media Nonbudding spherical form-a spherule, in host tissue. . C. immitis reproduces in host tissue by forming small endospores within mature spherules. . Fu...
sciq
sciq_01_06073
Gas lines should be made of what so they do not rupture?
[ "flexible material", "adjustment material", "typically material", "Hard material" ]
A
Check to see that gas lines are made of flexible material so they do not rupture. Any equipment that uses gas should be well secured.
sciq
sciq_01_02116
Which part of a leaf contains openings known as stomata, through which the exchange of gases takes place?
[ "epidermis", "phloem", "stoma", "cuticle" ]
A
Which layers of the stem are made of parenchyma cells? a. cortex and pith b. phloem c. sclerenchyma d. xylem Like the rest of the plant, the stem has three tissue systems: dermal, vascular, and ground tissue. Each is distinguished by characteristic cell types that perform specific tasks necessary for the plant’s growth...
sciq
sciq_01_09786
What do decomposers release once they have broken down the dead organisms?
[ "essential molecules", "organic molecules", "unusable molecules", "inorganic molecules" ]
D
Ecosystems require constant inputs of energy from sunlight or chemicals. Producers use energy and inorganic molecules to make food. Consumers take in food by eating producers or other living things. Decomposers break down dead organisms and other organic wastes and release inorganic molecules back to the environment.
openbookqa
obqa_02_00261
What material is an example of an electrical insulator?
[ "Metal", "Cement", "Stone", "Brick" ]
D
brick is an electrical insulator
math_qa
mathqa_03_03856
the average monthly salary of 8 workers and one supervisor in a factory was 430 . @ sswhen @ ssthe @ sssupervisor @ cc @ sswhose @ sssalary @ sswas @ ss 430 . @ sswhen @ ssthe @ sssupervisor @ cc @ sswhose @ sssalary @ sswas @ ss 430 . whenthesupervisor , whosesalarywas 430 . when the supervisor , whose salary was 870 ...
[ "233", "690", "287", "771" ]
B
"explanation : total salary of 8 workers and supervisor together = 9 ã — 430 = 3870 now total salary of 8 workers = 3870 â ˆ ’ 870 = 3000 total salary of 9 workers including the new supervisor = 9 ã — 410 = 3690 salary of the new supervisor = 3690 â ˆ ’ 3000 = 690 answer : b"
medmcqa
medmcqa_05_04022
Nail involvement is not a feature of
[ "Psoriasis", "Lichenplanus", "Dermatophytosis", "DLE" ]
D
D i.e. DLE
openbookqa
obqa_02_01651
What is present in death at the end of the life cycle
[ "spirits", "Bacteria", "God", "Food" ]
B
decomposition is when a decomposer breaks down dead organisms
sciq
sciq_01_07291
Typically hard, high-melting solids that conduct heat and electricity well, the transition elements have many properties in common with other what?
[ "organics", "deposits", "metals", "oils" ]
C
The transition elements have many properties in common with other metals. They are almost all hard, high-melting solids that conduct heat and electricity well. They readily form alloys and lose electrons to form stable cations. In addition, transition metals form a wide variety of stable coordination compounds, in whic...
openbookqa
obqa_02_01264
What are formed by natural geological processes?
[ "animals", "lifeless matter", "air flow", "companies" ]
B
all minerals are formed by natural geological processes
openbookqa
obqa_02_02191
An area of dirt contains large amounts of talc. That means that talc is able to be found in
[ "strawberries that grow elsewhere", "strawberries that grow there", "shark's stomachs under water", "underwater caves in France" ]
B
if some nutrients are in the soil then those nutrients are in the food chain
ARC-Challenge
arc_04_02358
Which of these substances conducts electricity the best?
[ "Wood", "Brick", "Copper", "Plastic" ]
C
null
medmcqa
medmcqa_05_02078
A 40 year old man consumes alcohol & creates public nuisance. The punishment in this scenario is dealt under which section of IPC?
[ "85 IPC", "510 IPC", "300 IPC", "86 IPC" ]
B
Sec. 85 IPC: Nothing is an offence which is done by a person who at the time of doing it, by reason of intoxication, is incapable of knowing the nature of the act, or what he is doing is either wrong or contrary to law; provided that thing which intoxicated him was administered to him without his knowledge or against h...
medmcqa
medmcqa_05_01735
An elderly female presents to the emergency depament with history of fever, headache and double vision. Biopsy of temporal aery revealed panaeritis. The most likely diagnosis is
[ "Nonspecific Aeritis", "Polyaeritis Nodosa", "Wegener's Granulomatosis", "Temporal Aeritis" ]
D
Answer is D i.e. (Temporal Aeritis): The clinical complex of fever, headache and diplopia together with panaeritis on biopsy of temporal aery suggests the diagnosis of temporal aeritis.
sciq
sciq_01_00593
Displacement divided by time is equal to the average what?
[ "acceleration", "velocity", "speed", "force" ]
B
Average velocity is displacement divided by time.
medmcqa
medmcqa_05_02344
Subclan aery is divided by which muscle ?
[ "Pectoralis minor", "Teres minor", "Scaleneus anterior", "Trapezius" ]
C
Ans. is 'c' i.e., Scaleneus anterior Scaleneus anterior muscle divides subclan aery into three pas :?A) First pa :This pa is medial (proximal) to scaleneus anterior. Branches from first pa are :?Veebral aeryInternal thoracic aeryThyrocervical trunk:Costocervical trunk (on left side only).B) Second pa :This pa lies post...
sciq
sciq_01_02967
Ecology, botany, and zoology are what type of science?
[ "psychological sciences", "life science", "chemistry", "physical sciences" ]
B
Life is complex and living things are incredibly diverse. Therefore, life science is divided into many fields, such as ecology, botany, and zoology.
openbookqa
obqa_02_04172
A goose in the autumn is most likely
[ "nesting", "hibernating", "in flight", "laying eggs" ]
C
migration is when animals move to different locations in an annual cycle
sciq
sciq_01_10611
What is the cause of the “heartburn” that occurs when acidic digestive juices escape into the esophagus?
[ "toxic reflux", "acid pressure", "acidic buildup", "acid reflux" ]
D
sphincter, but the esophagus remains closed when there is no swallowing action. Acid reflux or “heartburn” occurs when the acidic digestive juices escape into the esophagus. Stomach A large part of digestion occurs in the stomach, shown in Figure 34.11. The stomach is a saclike organ that secretes gastric digestive jui...
math_qa
mathqa_03_04995
an ore contains 25 % of an alloy that has 90 % iron . other than this , in the remaining 75 % of the ore , there is no iron . how many kilograms of the ore are needed to obtain 60 kg of pure iron ?
[ "250 kg", "275 kg", "300 kg", "266.66 kg" ]
D
solution : let there is 100 kg of ore . 25 % ore contains 90 % off iron that means 25 kg contains ; 25 * 90 / 100 = 22.5 kg iron . 22.5 kg iron contains 100 kg of ore . then , 1 kg of iron contains = 25 / 100 kg ore ; hence , 60 kg iron contains = 100 * 60 / 22.5 = 266.66 kg ore . answer : option d
openbookqa
obqa_02_03681
Which would least likely help someone with bad vision?
[ "a magnifying glass", "sungazing", "binoculars", "a telescope" ]
B
binoculars are used for observing distant objects
medmcqa
medmcqa_05_01617
X-rays are produced by:
[ "Electrons", "Neutrons", "Positrons", "Protons" ]
A
Ans. Electrons
openbookqa
obqa_02_04347
An unwillingness to listen to guidelines leaves data completely
[ "noble prize winning", "faulty", "repeatable", "perfect" ]
B
performing lab expiriments accurately requires understanding all directions beforehand
sciq
sciq_01_02155
What sequence is the primary structure of a protein?
[ "processed acid sequence", "proteins acid sequence", "nucleic acid sequence", "amino acid sequence" ]
D
The amino acid sequence is the primary structure of a protein. As explained in Figure below , a protein may have up to four levels of structure, from primary to quaternary. The complex structure of a protein allows it to carry out its biological functions.
openbookqa
obqa_02_01782
Offspring receive genes from their parents via what?
[ "gene therapy", "documents", "double helix", "paperwork" ]
C
offspring receive genes from their parents through DNA
openbookqa
obqa_02_04046
What can you see yourself in?
[ "a tar pit", "a deep cave", "clear mountain lake", "an abyss" ]
C
shiny things reflect light
sciq
sciq_01_01741
Plants supply, ultimately, most of the food eaten by terrestrial animals, along with what gas?
[ "oxygen", "nitrogen", "hydrogen", "carbon dioxide" ]
A
sciq
sciq_01_06663
When different types of tissues work together to perform a unique function, what do they form?
[ "organs", "produce", "Brian", "organ" ]
D
Plant Organ Systems In plants, just as in animals, similar cells working together form a tissue. When different types of tissues work together to perform a unique function, they form an organ; organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system, and a root system....
medmcqa
medmcqa_05_03830
A patient with HIV has diarrhoea with AFB (+)ve organism in stool. The most likely organism is -
[ "Mycobacterium avium intracellulare", "Mycobacterium TB", "Mycobacterium leprae", "Mycoplasma" ]
A
respiratory infection (TB) most redponsible organism is M.avium intracrllularlae REF:MICROBIOLOGY ANANTHA NARAYANAN NINTH EDITION PAGE.576
openbookqa
obqa_02_04437
if an object undergoes chemical change then that object will have new chemical what?
[ "warmth", "temperature", "appearance", "attributes" ]
D
if an object undergoes chemical change then that object will have new chemical properties
sciq
sciq_01_01593
What is another word for thermal energy?
[ "solar", "heat", "temperature", "humidity" ]
B
ARC-Challenge
arc_04_03096
A scientist working on a new package design wants to use a material that is highly recyclable, biodegradable, and inexpensive. The best material for the package design is
[ "aluminum.", "cardboard.", "plastic.", "glass." ]
B
null
ARC-Easy
arc_04_01938
What best describes the mantle of Earth?
[ "a thin layer that is located on the surface", "a solid layer made of iron and nickel", "the largest layer between the crust and outer core", "the smallest layer that is made up of molten rock" ]
C
null
math_qa
mathqa_03_03281
i chose a number and divide it by 6 . then i subtracted 189 from the result and got 3 . what was the number i chose ?
[ "1200", "1152", "1189", "1190" ]
B
"let x be the number i chose , then x / 6 − 189 = 3 x / 6 = 192 x = 1152 answer is b ."
ARC-Challenge
arc_04_02912
Which activity is an example of a good health habit?
[ "watching television", "smoking cigarettes", "eating candy", "exercising every day" ]
D
null
math_qa
mathqa_03_01201
three numbers are in the ratio 1 : 3 : 6 and their average is 100 . the largest number is :
[ "180", "98", "27", "21" ]
A
"explanation : let the numbers be x , 3 x and 6 x , then , ( x + 3 x + 6 x ) / 3 = 100 = > 10 x = 100 * 3 = > x = 30 largest number 6 x = 6 * 30 = 180 answer : a"
sciq
sciq_01_00628
Carrier proteins bind and carry the molecules across what cell structure?
[ "plastid", "cell wall", "nucleus", "cell membrane" ]
D
Carrier proteins bind and carry the molecules across the cell membrane. These proteins bind a molecule on one side of the membrane, change shape as they carry the molecule across the membrane, and deposit the molecule on the other side of the membrane. Even though a protein is involved in both these methods of transpor...
sciq
sciq_01_11105
What type of shape does sodium chloride have?
[ "trianguler", "round", "oblong", "cubic" ]
D
Sodium chloride crystals are cubic in shape. Other ionic compounds may have crystals with different shapes.
medmcqa
medmcqa_05_02156
Father of modern psychiatry is ?
[ "Bleuler", "Freud", "Pinel", "Kraepel in" ]
C
Ans. is 'c' i.e., Pinel Father of psychoanalysis - Sigmund freud Father of modern psychiatry - Phileppel pinel
sciq
sciq_01_06048
The name silicon is derived from the latin word for flint?
[ "pelea", "silk", "simple", "silex" ]
D
The name silicon is derived from the Latin word for flint, silex. The metalloid silicon readily forms compounds containing Si-O-Si bonds, which are of prime importance in the mineral world. This bonding capability is in contrast to the nonmetal carbon, whose ability to form carbon-carbon bonds gives it prime importance...
sciq
sciq_01_08784
The human body wants to maintain equilibrium or balance, also known as what?
[ "homeostasis", "perfection", "stability", "heterostasis" ]
A
Homeostasis The goal of homeostasis is the maintenance of equilibrium around a specific value of some aspect of the body or its cells called a set point. While there are normal fluctuations from the set point, the body’s systems will usually attempt to go back to this point. A change in the internal or external environ...
sciq
sciq_01_04445
Footprints, burrows, and waste are considered what type of fossils?
[ "trace fossils", "crater fossils", "morphology fossils", "movement fossils" ]
A
Preserved traces can include footprints, burrows, or even wastes. Examples of these types of fossils, called trace fossils are picture below ( Figure below and Figure below ).
ARC-Challenge
arc_04_02594
A road cut shows a layer of shale on top of a layer of limestone. This indicates
[ "the shale layer is older than the limestone layer.", "a fault occurred during the deposition of the layers.", "the environment changed between the times of deposition.", "volcanic activity occurred when these layers were deposited." ]
C
null
sciq
sciq_01_04776
Omnivores are animals that eat both plant- and?
[ "biofuel", "recycled food", "liquid diets", "animal-derived food" ]
D
Omnivores are animals that eat both plant- and animal-derived food. In Latin, omnivore means to eat everything. Humans, bears (shown in Figure 34.4a), and chickens are example of vertebrate omnivores; invertebrate omnivores include cockroaches and crayfish (shown in Figure 34.4b).
sciq
sciq_01_05713
What is another term for joules per second?
[ "parsons", "jiffies", "watts", "jacobs" ]
C
Electric energy is measured in joules per second, or watts.
ARC-Challenge
arc_04_03194
Which of these reduces the need for people to use nonrenewable resources?
[ "recycling paper products", "watering the lawn once a week", "designing cars that are fuel efficient", "using coal to generate electricity" ]
C
null
math_qa
mathqa_03_00199
the ratio , by volume , of soap to alcohol to water in a certain solution is 2 : 40 : 70 . the solution will be altered so that the ratio of soap to alcohol is doubled while the ratio of soap to water is halved . if the altered solution will contain 100 cubic centimeters of alcohol , how many cubic centimeters of water...
[ "500", "600", "650", "700" ]
D
"soap : alcohol initial ratio soap : alcohol : water - - > 2 : 40 : 70 initial soap : alcohol = 2 / 40 = 2 : 40 after doubled soap : alcohol = 2 * 2 / 40 = 4 : 40 initial soap : water = 2 / 70 = 2 : 70 after halved soap : water : 1 / 2 * 2 / 70 = 1 / 70 = 1 : 70 after soap : alcohol : water - - > 4 : 40 : 280 - - > 1 :...
sciq
sciq_01_05539
Convection generally involves the transfer of what type of energy?
[ "radioactive", "magnetic", "thermal", "sunlight" ]
C
Convection currents transfer thermal energy through many fluids, not just hot water in a pot. For example, convection currents transfer thermal energy through molten rock below Earth’s surface, through water in the oceans, and through air in the atmosphere. Convection currents in the atmosphere create winds. You can se...
sciq
sciq_01_07792
When the sun is below the horizon and thus not visible on a direct line, the light path will bend slightly and thus make the sun visible by what?
[ "infrared", "reflection", "refraction", "thermal" ]
C
Because air is slightly more optically dense than a vacuum, when sunlight passes from the vacuum of space into our atmosphere, it bends slightly towards the normal. When the sun is below the horizon and thus not visible on a direct line, the light path will bend slightly and thus make the sun visible by refraction. Obs...
openbookqa
obqa_02_03327
if these animals were planetary bodies, which of them would have the most gravitational pull?
[ "a bull on the couch", "a mouse in the wall", "a duck in the pond", "a dog in the field" ]
A
the mass of a planet causes the pull of gravity on that planet
math_qa
mathqa_03_01901
a man can do a job in 20 days . his father takes 20 days and his son finishes it in 25 days . how long will they take to complete the job if they all work together ?
[ "6.3", "6.9", "7.1", "6.1" ]
C
"1 day work of the three persons = ( 1 / 20 + 1 / 20 + 1 / 25 ) = 7 / 50 so , all three together will complete the work in 300 / 47 = 7.1 days . answer : c"
medmcqa
medmcqa_05_02102
Excessive ultraviolet (UV) radiation is harmful to life. The damage caused to the biological systems by ultraviolet radiation is by
[ "Inhibition of DNA synthesis", "Formation of thymidine dimers", "Ionization", "DNA fragmentation" ]
B
Although UV photons of different energies have various effects on DNA, the most impoant damage to DNA is the formation of pyrimidine dimers. In the pyrimidine dimer, two adjacent pyrimidine bases--cytosine (C) and/or thymine (T)--are linked in an abnormal structure which distos the shape of the DNA double helix and blo...
ARC-Easy
arc_04_00032
A cell that is unable to import substances required to process chemical energy is most likely a result of a malfunctioning
[ "cell membrane.", "endoplasmic reticulum.", "Golgi body.", "nuclear envelope." ]
A
null
openbookqa
obqa_02_02876
Cake tastes sweet because of
[ "sweet and low", "sucrose", "flour", "honey" ]
B
sugar causes food to taste sweet
openbookqa
obqa_02_02667
Two wheeled conveyances are held together by
[ "helically ridged pins", "tape", "glue", "gum" ]
A
a bicycle contains screws