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7.76k
medmcqa
medmcqa_05_00405
Type of collagen present in the basement membranes?
[ "Type I", "Type II", "Type III", "Type IV" ]
D
Type IV cailage is present in basement membranes Type Distribution I Non Cailaginous connective tissues, including bone, tendon, skin II Cailage, vitreous humor III Extensible connective tissues, including skin, lung, vascular system IV Basement membranes V Minor component in tissues containing collagen I VI Muscle and...
openbookqa
obqa_02_04154
Being near buildings or houses is the worst spot to be when there is an earthquake as you are likely to be
[ "stones", "nothing", "kissed by one", "crushed by one" ]
D
buildings collapsing often cause death
sciq
sciq_01_10746
What does sexual reproduction with gametes and fertilization produce?
[ "sister chromatids", "haploid zygote", "diploid sporophyte", "identical twins" ]
C
All plants have a characteristic life cycle that includes alternation of generations . Plants alternate between haploid and diploid generations. Alternation of generations allows for both asexual and sexual reproduction. Beginning with the diploid sporophyte , spores form from meiosis. Asexual reproduction with spores ...
medmcqa
medmcqa_05_04344
The recommended hemoglobin level in male patients with polycythemia rubravera to avoid thrombotic episodes is:
[ "14 g/dl", "12 g/dl", "10g/dl", "8g/dl" ]
A
Polycythemia rubra vera It is an indolent disorder and thrombosis is the most significant complication. Maintenance of the hemoglobin level at 140 g/L (14 g/dL; hematocrit Phlebotomy : serves to help this aim. Phlebotomy reduce hyperviscosity by bringing the red cell mass into the normal range. Periodic phlebotomies ma...
ARC-Challenge
arc_04_03031
Which question can be answered using an investigation done by a science class?
[ "What is the climate on Jupiter?", "Do plants grow differently with and without light?", "Where is the warmest place on Earth that has life?", "How far do monarch butterflies migrate?" ]
B
null
openbookqa
obqa_02_01373
Cans can be taken to a place known as
[ "the ocean", "scrap yard", "shot with BBs", "buried" ]
B
aluminum is recyclable
sciq
sciq_01_05579
What is the process in which one cell divides to form two new cells called?
[ "Cell Formation", "cell contribution", "cell direction", "cell division" ]
D
Cell division is part of the life cycle of virtually all cells. Cell division is the process in which one cell divides to form two new cells.
ARC-Challenge
arc_04_02196
Which would a scientist use in trying to model the cause of planetary years?
[ "planetary mass", "planetary color", "a planet's core temperature", "a planet's distance from the Sun" ]
D
null
openbookqa
obqa_02_00943
The skeletal system protects
[ "pancreas", "toenails", "eyes", "hair" ]
A
the skeletal system protects internal organs
sciq
sciq_01_08652
Regulation of hormone production hormone levels are primarily controlled through negative feedback, in which rising levels of a hormone inhibit its?
[ "recent release", "particular release", "further release", "Limited release" ]
C
37.4 Regulation of Hormone Production Hormone levels are primarily controlled through negative feedback, in which rising levels of a hormone inhibit its further release. The three mechanisms of hormonal release are humoral stimuli, hormonal stimuli, and neural stimuli. Humoral stimuli refers to the control of hormonal ...
medmcqa
medmcqa_05_02412
Glutamic acid is formed from which of the following amino acid?
[ "Threonine", "Proline", "Alanine", "Lysine" ]
C
Glutamic acid is formed by the transamination of alanine and vice versa. Alanine aminotransferase is the enzyme and pyridoxal phosphate is the coenzyme.Ref: DM Vasudevan - Textbook of Biochemistry, 7th edition, page no: 201, fig.15.8.
ARC-Challenge
arc_04_02265
In which of the following ways are photosynthesis and cellular respiration alike?
[ "Both processes produce glucose.", "Both processes consume carbon dioxide.", "Both processes take place in chloroplasts.", "Both processes involve energy transformations." ]
D
null
openbookqa
obqa_02_04215
Heat causes you to sweat, so at which time of day will you sweat most?
[ "high noon", "night time", "early morning", "during a snowstorm" ]
A
sunlight produces heat
math_qa
mathqa_03_04742
if a - b = 6 and a ^ 2 + b ^ 2 = 100 , find the value of ab
[ "10", "32", "15", "18" ]
B
"2 ab = ( a ^ 2 + b ^ 2 ) - ( a - b ) ^ 2 = 100 - 36 = 64 = > ab = 32 answer : b"
medmcqa
medmcqa_05_03706
Enzyme inactivation is the main mode of resistance to
[ "Aminoglycosides", "Quinolone", "Rifampicin", "Glycopeptides" ]
A
Refer KDT 6/e p 720 Resistance to quinolone is due to altered DNA gyrase, to Rifampicin is due to mutation in gene rpo! Reducing it's ability for the target and for glycopeptides like vancomycin due to reduced affintiy6 for target site
sciq
sciq_01_07272
Plasmodesmata passes through what part of plants?
[ "cell ridges", "cytoplasm", "cell walls", "nucleus" ]
C
medmcqa
medmcqa_05_04504
Posterior pa of hypothalamus is concerned with: March 2013
[ "Regulation of sexual function", "Role in circadian rhythm", "Regulation of response to smell", "Secretion of posterior pituitary hormones" ]
C
Ans. C i.e. Regulation of response to smell
medmcqa
medmcqa_05_01058
Most radiosensitive tumor of the following is?
[ "Dysgerminoma", "Renal cell carcinoma", "Melanoma", "Thyroid carcinoma" ]
A
ANSWER: (A) DysgerminomaREF: Rozer's radiotherapy 3rd e table 11.3RADIOSENSITIVITY OF DIFFERENT TUMORSHighly radiosensitive* Ewings* Seminoma* Lymphoma* Wilms* Multiple myelomaModerately* Nasopharyngeal* Dysgerminoma* Medulloblastoma* Small cell ca* Teratoma* Breast ca* Ovarian ca* Basal cell caRelatively resistant* Re...
math_qa
mathqa_03_00030
50 men took a dip in a water tank 40 m long and 20 m broad on a religious day . if the average displacement of water by a man is 4 m 3 , then the rise in the water level in the tank will be :
[ "20 cm", "25 cm", "35 cm", "50 cm" ]
B
"explanation : total volume of water displaced = ( 4 x 50 ) m 3 = 200 m 3 rise in water level = 200 / 40 × 20 = 0.25 m = 25 cm answer : b"
sciq
sciq_01_00710
Osteoclasts break down bone to maintain mineral what?
[ "density", "fluctuations", "polarity", "homeostatis" ]
D
Under the direction of osteocytes, osteoblasts continuously build up bone, while osteoclasts continuously break down bone to maintain mineral homeostasis. Bone tissues include compact bone, spongy bone, bone marrow, and periosteum.
sciq
sciq_01_02441
Animals need plants for food and?
[ "energy", "fuel", "shelter", "reproduction" ]
A
sciq
sciq_01_05212
What structure connects the fetus to the placenta, allowing the exchange of gases?
[ "sediment cord", "umbilical cord", "skin cord", "belly button" ]
B
Within seconds of birth, the umbilical cord is cut. Without this connection to the placenta, the baby can’t exchange gases, so carbon dioxide quickly builds up in the baby’s blood. This stimulates the baby’s brain to trigger breathing, and the newborn takes her first breath.
math_qa
mathqa_03_02179
a , b and c rent a pasture . if a puts 10 oxen for 7 months , b puts 12 oxen for 5 months and c puts 15 oxen for 3 months for grazing and the rent of the pasture is rs . 280 , then how much amount should c pay as his share of rent ?
[ "35", "45", "25", "72" ]
D
a : b : c = 10 × 7 : 12 × 5 : 15 × 3 = 2 × 7 : 12 × 1 : 3 × 3 = 14 : 12 : 9 amount that c should pay = 280 × 9 / 35 = 8 × 9 = 72 answer is d
ARC-Easy
arc_04_00878
On the periodic table, the elements in group 18 (8A) (helium, neon, argon, etc.) are grouped together because
[ "they are lighter than air.", "they have full outer electron shells.", "they have excess electrons to share.", "they easily react with other elements." ]
B
null
openbookqa
obqa_02_02500
A kitten curled up against a cool marble slab will
[ "heat", "chill", "freeze", "starve" ]
B
as heat is transferred from something to something else , the temperature of that something will decrease
sciq
sciq_01_04882
What is the transfer of information from rna to dna called?
[ "reverse differentiation", "confront transcription", "forward transcription", "reverse transcription" ]
D
Reverse transcription is the transfer of information from RNA to DNA. The is the reverse of normal transcription. Reverse transcription occurs in retroviruses, such as HIV, the virus that causes AIDS. Retroviruses are RNA viruses that are duplicated in a host cell by using reverse transcriptase enzyme to produce DNA fr...
ARC-Challenge
arc_04_02881
The concept of continental drift, continents drifting over the ocean floors, was proposed by Alfred Wegner in 1915. This concept was replaced by the theory of plate tectonics in the 1960s. Changes from the continental drift concept to the plate tectonics theory required which of the following?
[ "strong earthquakes occurring along fault zones", "data and ideas being shared among scientists", "a scientific law being passed by Congress", "teachers beginning to teach the newer theory" ]
B
null
sciq
sciq_01_09407
What is the ratio of the uncertainty to the measured value, multiplied by one-hundred called?
[ "variable uncertainty", "percent inconsistency", "amount uncertainty", "percent uncertainty" ]
D
To express the uncertainty in a measurement, we can calculate percent uncertainty . Percent uncertainty is the ratio of the uncertainty to the measured value, multiplied by one-hundred. For instance, the percent uncertainty associated with the measurement of (52.9 ± 0.5 mL), would be.
medmcqa
medmcqa_05_04757
Linoleic acid is maximum in:
[ "Groundnut oil", "Safflower oil", "Mustard oil", "Coconut oil" ]
B
Safflower oil
sciq
sciq_01_11088
Which branch of science is the study of energy, matter, and their interactions?
[ "biology", "meteorology", "geology", "physics" ]
D
Physics is the study of energy, matter, and their interactions. It is concerned with matter and energy at all levels—from the most fundamental particles of matter to the entire universe.
openbookqa
obqa_02_00790
The molten rock under the surface is called magma and once is appears on what area is it called lava?
[ "geyser", "volcano", "below ground", "above ground" ]
D
lava is found above the ground
ARC-Easy
arc_04_00567
Which characteristic can an amoeba change that a paramecium cannot change?
[ "sex", "shape", "color", "position" ]
B
null
ARC-Easy
arc_04_02133
Which part of the body works closely with the digestive system to transport nutrients to the cells?
[ "lungs", "blood", "kidneys", "esophagus" ]
B
null
ARC-Easy
arc_04_01110
Sodium (Na) and chlorine (Cl) combine to form sodium chloride (NaCl), which is commonly known as
[ "soap.", "vinegar.", "table salt.", "baking soda." ]
C
null
math_qa
mathqa_03_01934
what is difference between biggest and smallest fraction among 2 / 3 , 3 / 4 , 4 / 5 and 5 / 4
[ "2 / 5", "3 / 5", "7 / 12", "1 / 7" ]
C
"explanation : 2 / 3 = . 66 , 3 / 4 = . 75 , 4 / 5 = . 8 and 5 / 4 = 1.25 so biggest is 5 / 4 and smallest is 2 / 3 their difference is 5 / 4 - 2 / 3 = 7 / 12 option c"
math_qa
mathqa_03_00080
a man can swim in still water at 15 km / h , but takes twice as long to swim upstream than downstream . the speed of the stream is ?
[ "3.9", "5", "5.3", "1.5" ]
B
"m = 15 s = x ds = 15 + x us = 15 - x 15 + x = ( 15 - x ) 2 15 + x = 30 - 2 x 3 x = 15 x = 5 answer : b"
medmcqa
medmcqa_05_04499
Crista terminalis is present in ?
[ "Left atrium", "Left ventricle", "Right atrium", "Right ventricle" ]
C
Crista terminalis (divides the right atrium into anterior and posterior pa) is a ridge of smooth muscle fibers extending from the SVC to valve of IVC. It is developed from embryonic right venous valve and is represented on the surface by sulcus terminalis.
sciq
sciq_01_08694
What areas of the planet are most birds native to?
[ "mountainous", "tropical", "desert", "tundra" ]
B
Birds live and breed in most terrestrial habitats on Earth. They can be found on all seven continents, from the Arctic to Antarctica. However, the majority of bird species are native to tropical areas of the planet.
math_qa
mathqa_03_03046
it is the new year and mandy has made a resolution to lose weight this year . she plans to exercise and do yoga . for exercise she plans to workout at the gym and ride her bicycle in the ratio of 2 : 3 everyday . she will also do yoga in the ratio , yoga : exercise = 2 : 3 . if she does yoga for 25 minutes , how much t...
[ "35 min", "5 min", "15 min", "25 min" ]
D
"the ratio is 2 : 3 = yoga : exer , so ( 25 ) ( 3 / 2 ) = 37.5 minutes for exercise , and 2 : 3 = gym : ride , and ( 2 / 3 ) ( 37.5 ) = 25 minutes in the gym . answer : d"
sciq
sciq_01_11436
Along with changes in the shape of the resonant cavity, growth of what organ in pubescent boys leads to the difference in predominant frequencies in speech between men and women?
[ "pharynx", "esoophagus", "trachea", "larynx" ]
D
The fundamental and overtones can be present simultaneously in a variety of combinations. For example, middle C on a trumpet has a sound distinctively different from middle C on a clarinet, both instruments being modified versions of a tube closed at one end. The fundamental frequency is the same (and usually the most ...
sciq
sciq_01_04312
The tails of the hale-bopp comet point away from the sun, evidence that light has what property of motion?
[ "velocity", "momentum", "acceleration", "inertia" ]
B
Figure 29.17 The tails of the Hale-Bopp comet point away from the Sun, evidence that light has momentum. Dust emanating from the body of the comet forms this tail. Particles of dust are pushed away from the Sun by light reflecting from them. The blue ionized gas tail is also produced by photons interacting with atoms i...
medmcqa
medmcqa_05_04312
Man had uncooked meat at dinner 3 days back, Now presenting with diarrhea. Stool examination shows coma shaped organism with RBC and WBC. Causative organism is ?
[ "Vibrio cholerae", "Shigella", "Campylobacter jejuni", "Yersinia enterocolitia" ]
C
Ans. is 'c' i.e., Campylobacter jejuni This is a case of dysentery (RBC in stools along with WBC). Among the given options, 'b', 'c' and 'd' can cause dysentery. But, coma shaped organism is campylobactor jejuni. Based on the depth of intestinal invasion, there are different clinical manifestations of infection with or...
medmcqa
medmcqa_05_00791
The commonest cause of U/L mucopurulent rhinorrhoea in a child:
[ "Antrochoanal polyp", "Foreign body", "Angiofibroma", "Rhinosporidiosis" ]
B
(b) Foreign body(Ref. Scott Brown, 8th ed., Vol 2; 386)Antrochoanal polyp usually presents with unilateral nasal obstruction. Nasal discharge if occurs is mucoid.Angiofibroma presents with repeated torrential or profuse epistaxis in pubertal males.Rhinosporidiosis presents with epistaxis and a mulberry nasal mass.
math_qa
mathqa_03_03690
a vendor sells 50 percent of the apples he had and throws away 20 percent of the remainder . the next day , the vendor sells 50 percent of the remaining apples and throws away the rest . in total , what percent of his apples does the vendor throw away ?
[ "30", "35", "40", "45" ]
A
"let x be the original number of apples . on day one , the vendor throws away ( 0.2 ) ( 0.5 ) x = 0.1 x . the remaining apples are ( 0.8 ) ( 0.5 ) x = 0.4 x . on day two , the vendor throws away ( 0.5 ) ( 0.4 ) x = 0.2 x . the vendor throws away a total of 0.1 x + 0.2 x = 0.3 x . the vendor throws away 30 percent of th...
openbookqa
obqa_02_02923
This creature is likely to hide away sustenance for the harsh wintry months
[ "a chipmunk", "a cactus", "a chihuahua", "a cat" ]
A
if an animal relies on plants for food then that animal must store enough food to last through the winter
math_qa
mathqa_03_02556
lilly has 10 fish and rosy has 14 fish . in total , how many fish do they have in all ?
[ "21", "22", "23", "24" ]
D
"10 + 14 = 24 the answer is d ."
medmcqa
medmcqa_05_04830
Ivermectin in indicated in the treatment of :
[ "Syphilis", "Scabies", "Tuberculosis", "Dermatophytosis" ]
B
B i.e. Scabies
sciq
sciq_01_07680
Why is it necessary to maintain proper levels of cations in intercellular fluids?
[ "cell division", "keep cells healthy", "for digestion", "reverse homeostasis" ]
B
Because the health of cells depends on maintaining the proper levels of cations in intracellular fluids, any change that affects the normal flux of metal ions across cell membranes could well cause an organism to die. Molecules that facilitate the transport of metal ions across membranes are generally called ionophores...
openbookqa
obqa_02_03142
If an organism is existing then it is made up of
[ "cola", "life material", "soil", "sap" ]
B
an organism is a source of organic matter
sciq
sciq_01_08465
When the oval window vibrates, it causes what else to vibrate as well?
[ "hammer and anvil", "the cochlea", "cilia", "timpani" ]
B
The stirrup in the middle ear passes the amplified sound waves to the inner ear through the oval window. When the oval window vibrates, it causes the cochlea to vibrate as well. The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called hair cells. Each hair cell has many tiny “hairs,...
math_qa
mathqa_03_04852
claire has a total of 90 pets consisting of gerbils and hamsters only . one - quarter of the gerbils are male , and one - third of the hamsters are male . if there are 25 males altogether , how many gerbils does claire have ?
[ "39", "50", "66", "57" ]
C
g + h = 90 . . . 1 ; g / 4 + h / 3 = 25 . . . . 2 or 3 g + 4 h = 25 * 12 = 300 g = 90 - h or 3 ( 90 - h ) + 4 h = 300 h = 300 - 270 = 30 then g = 96 - 30 = 66 c
math_qa
mathqa_03_04012
the total of 334 of 20 paise and 25 paise make a sum of rs . 71 . the no of 20 paise coins is
[ "250", "277", "278", "200" ]
A
"explanation : let the number of 20 paise coins be x . then the no of 25 paise coins = ( 334 - x ) . 0.20 * ( x ) + 0.25 ( 334 - x ) = 71 = > x = 250 . . answer : a ) 250"
medmcqa
medmcqa_05_04194
A patient lalita present with dry mouth, pupillary dilation and warm skin, the likely drug toxicity is:
[ "Organo-phosphorus", "Carbamazepine", "Lithium", "Amytriptyline 1:1" ]
D
D i.e. Amitryptiline Most tricyclic anti depressants eg. imipramine, amitryptiline have potent anticholinergic side effects. So atropine is not used in treatment of amitryptiline poisoningQ
sciq
sciq_01_00177
Runoff is likely to cause more what if the land is bare?
[ "erosion", "sediment", "weathering", "abrasion" ]
A
Runoff is likely to cause more erosion if the land is bare. Plants help hold the soil in place. The runoff water in Figure below is brown because it eroded soil from a bare, sloping field. Can you find evidence of erosion by runoff where you live? What should you look for?.
sciq
sciq_01_08947
What mammal is the most intelligent?
[ "humans", "monkey", "lion", "dog" ]
A
In this lesson, you learned some of the ways that humans differ from other mammals. For example, humans have a larger and more complex brain than other mammals. That’s why they are also the most intelligent mammals. The next chapter introduces the biology of the human animal.
openbookqa
obqa_02_00106
Electricity sent through a conductor
[ "halts the functioning of the conductor", "moves like traffic through a green light", "causes fire to flow through the conductor", "flows heat back to the conductor" ]
B
sending electricity through a conductor causes electricity to flow through that conductor
openbookqa
obqa_02_04433
Which is likeliest to harm the snowy owl population in an area?
[ "a new mall", "a new puddle", "a new tree", "a new preserve" ]
A
humans changing animal habitats usually causes harm to those animals
openbookqa
obqa_02_02327
A person in a cold environment that needs to produce heat could
[ "think", "jog", "want", "smell" ]
B
moving changes stored energy into motion and heat
sciq
sciq_01_03198
What living things are considered photoautotrophs because they use sunlight and carbon from carbon dioxide to synthesize chemical energy in the form of carbohydrates?
[ "protazoa", "moulds", "plants", "bacteria" ]
C
Solar Dependence and Food Production Some organisms can carry out photosynthesis, whereas others cannot. An autotroph is an organism that can produce its own food. The Greek roots of the word autotroph mean “self” (auto) “feeder” (troph). Plants are the best-known autotrophs, but others exist, including certain types o...
math_qa
mathqa_03_00050
car a runs at the speed of 50 km / hr and reaches its destination in 8 hours . car b runs at the speed of 65 km / h and reaches its destination in 4 hours . what is the ratio of distances covered by car a and car b ?
[ "3 : 7", "4 : 9", "20 : 13", "5 : 7" ]
C
"car a travels 50 × 8 = 400 km car b travels 65 × 4 = 260 km the ratio is 400 : 260 = 40 : 26 = 20 : 13 the answer is c ."
math_qa
mathqa_03_04135
the captain of a cricket team of 11 members is 27 years old and the wicket keeper is 1 year older . if the ages of these two are excluded , the average age of the remaining players is one year less than the average age of the whole team . what is the average age of the team ?
[ "20", "21", "22", "23" ]
D
"let the average age of the whole team be x years . 11 x - ( 27 + 28 ) = 9 ( x - 1 ) 11 x - 9 x = 46 2 x = 46 x = 23 . the average age of the team is 23 years . the answer is d ."
openbookqa
obqa_02_00585
Thick feathers come in handy for birds
[ "that live in warm climates", "who like a fluffier look", "that live in frigid climates", "who suffer from male patterned baldness" ]
C
thick feathers can be used for keeping warm
medmcqa
medmcqa_05_03139
A 13 yr old girl from Himachal Pradesh presents with non-healing leg ulcers. Which of the following is likely to be the causative agent?
[ "Sporothrix", "Cladophora", "Aspergillus", "Bacteroids" ]
A
Sporothrix infection is prevalent in temperate climate and non-healing leg ulcer is a sign of Sporothrix infection. Ref: CMDT , 2008, Chapter 36 , Page 1337
ARC-Easy
arc_04_00456
Which part of a DNA molecule represents encoded information?
[ "phosphate", "sugar", "guanine", "hydrogen bond" ]
C
null
math_qa
mathqa_03_00344
of all the students in a certain dormitory , 1 / 2 are first - year students and the rest are second - year students . if 4 / 5 of the first - year students have not declared a major and if the fraction of second - year students who have declared a major is 1 / 3 times the fraction of first - year students who have dec...
[ "7 / 15", "1 / 5", "4 / 15", "1 / 3" ]
A
tot students = x 1 st year student = x / 2 - - - - > non majaor = 4 / 5 ( x / 2 ) - - - - - > maj = 1 / 5 ( x / 2 ) 2 nd year student = x / 2 - - - - > maj = 1 / 3 ( 1 / 5 ( x / 2 ) ) = 1 / 30 ( x ) - - - > non major = x / 2 - 1 / 30 ( x ) = 7 / 15 ( x ) hence 7 / 15 a
openbookqa
obqa_02_03606
Smoking causes direct damage to what?
[ "feet", "breathing organ", "stomach", "skin" ]
B
smoking causes direct damage to the lungs
sciq
sciq_01_02263
What is the term for organisms that live in extremely hot environments?
[ "thermophiles", "thermophobes", "exothermic", "hydrophylic" ]
A
The thermophiles live in extremely hot environments. For example, they can grow in hot springs, geysers, and near volcanoes. Unlike other organisms, they can thrive in temperatures near 100°C, the boiling point of water!.
openbookqa
obqa_02_03319
What product eventually will become human waste?
[ "stars", "unicorns", "black holes", "corn" ]
D
processes sometimes produce waste products
medmcqa
medmcqa_05_01298
Which is a secondary skin lesion ?
[ "Plaque", "Macule", "Abscess", "Scales" ]
D
Ans. is 'd' i.e., Scales Basic skin lesions Primary -4 Macule, papule, plaque, nodule, vesicle, bulla, cyst, abscess, wheals (hives). Secondary -4 Scales, crusts, excoriation, erosion, ulcer, atrophy, lichenification. B. Special lesions --> Burrow, comedones, milia, telangiectasia.
math_qa
mathqa_03_00184
in a certain pond , 50 fish were caught , tagged , and returned to the pond . a few days later , 50 fish were caught again , of which 10 were found to have been tagged . if the percent of tagged fish in the second catch approximates the percent of tagged fish in the pond , what is the approximate number of fish in the ...
[ "400", "625", "250", "2,500" ]
C
"total fish = x percentage of second catch = ( 10 / 50 ) * 100 = 20 % so , x * 20 % = 50 x = 250 ans . c"
medmcqa
medmcqa_05_00255
Not a feature of dementia
[ "Forgetfulness", "Loss of neurons in brain", "Loss of sensorium", "Wearing diy clothes" ]
C
Dementia refers to a disease process marked by progressive cognitive impairment in clear consciousness. Reference: Kaplan & Sadock's synopsis of psychiatry, 11th edition, page 704.
math_qa
mathqa_03_03227
a train running at the speed of 180 km / hr crosses a pole in 18 seconds . what is the length of the train ?
[ "800", "900", "950", "1000" ]
B
"speed = ( 180 x ( 5 / 18 ) m / sec = ( 50 ) m / sec . length of the train = ( speed x time ) . length of the train = ( ( 50 ) x 18 ) m = 900 m b"
sciq
sciq_01_10668
The as yet undiscovered grand unified theory is a search to unify laws of what branch of science?
[ "masses", "genetics", "physics", "chemistry" ]
C
Over 2500 years ago Aristotle proposed two laws of physics governing motion. One for ‘Earthly bodies’ (objects on Earth) that states objects naturally go in straight lines and one for ‘Heavenly bodies’ (objects in space) that states objects naturally go in circles. This idea held steady for 2,000 years until Isaac Newt...
openbookqa
obqa_02_02369
A person needs to use a raw material to cool an engine, so they might use
[ "H2O in a jug", "fire in a house", "salt in a shaker", "corn in a stove" ]
A
if something is a raw material in a process then that something is required for that process
openbookqa
obqa_02_04097
What eats other animals for food?
[ "marlins", "goats", "rabbits", "elephants" ]
A
a predator eats other animals for food
math_qa
mathqa_03_04659
the salary of a labourer increase consistently by 40 % per year . if his present salary is rs . 3000 then what will his salary be after 3 years ?
[ "8232", "3282", "4282", "8242" ]
A
explanation : salary = 3000 x 1.4 x 1.4 x 1.4 = 8232 answer : option a
sciq
sciq_01_01547
What is the scientific name of the thighbone, the longest, heaviest, and strongest bone in the body?
[ "tibia", "humerus", "femur", "fibula" ]
C
The femur, or thighbone, is the longest, heaviest, and strongest bone in the body. The femur and pelvis form the hip joint at the proximal end. At the distal end, the femur, tibia, and patella form the knee joint. The patella, or kneecap, is a triangular bone that lies anterior to the knee joint. The patella is embedde...
medmcqa
medmcqa_05_04918
Drug which can cause Hyperophic Pyloric stenosis is:
[ "Rifampicin", "Erythromycin", "Azithromycin", "Ampicillin" ]
B
Erythromycin
medmcqa
medmcqa_05_00759
In methyl alcohol poisoning there is CNS depression, cardiac depression and optic nerve atrophy. These effects are produced due to ?
[ "Formaldehyde and formic acid", "Acetaldehyde", "Pyridine", "Acetic acid" ]
A
Ans. is 'a' i.e., Formaldyhyde and formic acid o Methyl alcohol (methanol) is metabolized to formaldehyde by alcohol dehydrogenase and then to formic acid by aldehyde dehydrogenase. These compounds are responsible for the toxicity. Formic acid can lead to coma and blindness also. Therefore, inhibitor of alcohol dehydro...
medmcqa
medmcqa_05_03474
Most common association in MEN 1 is -
[ "Gastrinoma", "Glucagonoma", "Insulinoma", "Lipoma" ]
A
Ans. is 'a' i.e. Gastrinoma "Gastrinomas are the most common pancreatic islet tumors in MEN1 patients, accounting for over half of all pancreatic islet tumors in these patients." - Clinical Neuroendocrinology p. 342"The most common islet neoplasm in MEN 1 secret pancreatic polypeptide & is nonfunctional, while gastrino...
medmcqa
medmcqa_05_03083
Tinel sign is used for depecting ?
[ "To assess the severity of damage of nerve", "To classify the type of nerve injury", "To locate the site of nerve injury", "To assess the recovery" ]
D
Tinel&;s sign is an impoant sign ,which helps in recording the rate of regeneration of nerve clinically . Procedure: gentle percussion is done along the course of injured nerve . Tingling sensation is experienced by the patient in the distribution of injured nerve rather than the area percussed , & the sensation should...
ARC-Challenge
arc_04_03124
The mountain chorus frog is an endangered species in Maryland. In addition to the loss of habitat, what most likely caused this frog population to decline?
[ "an increase in a food source", "more frog breeding grounds", "native wetlands preservation", "poisons dissolved in the water" ]
D
null
sciq
sciq_01_09939
Long distance runners try to maintain constant velocity with very little acceleration or deceleration to conserve what?
[ "momentum", "energy", "pressure", "fuel" ]
B
Long distance runners try to maintain constant velocity with very little acceleration or deceleration to conserve energy.
ARC-Easy
arc_04_01345
Decomposers are organisms that obtain their food from dead organisms. Which of these would be classified as decomposers?
[ "algae, plants", "snakes, wolves, whales", "deer, rabbits, mice", "bacteria, fungi" ]
D
null
medmcqa
medmcqa_05_03148
Mirror test is used to
[ "Assessment of cessation of respiration", "Assessment for tremors", "Assessment for hea function", "Assessment for brain function" ]
A
Cessation of respiration : this should be complete and continuous. Complete stoppage of respiration for more than 5 minutes usually causes death. Respiration may stop for very sho period without causing death. Feather test, mirror test and Winslow's test have only historical impoance. Ref: Dr. NARAYANAN REDDYS TEXTBOOK...
sciq
sciq_01_03550
Asexual, sexual, budding, and parthenogenesis are all forms of what?
[ "absorption", "photosynthesis", "reproduction", "hibernation" ]
C
REVIEW QUESTIONS 4. Which form of reproduction is thought to be best in a stable environment? a. asexual b. sexual c. budding d. parthenogenesis 5. Which form of reproduction can result from damage to the original animal? a. asexual b. fragmentation c. budding d. parthenogenesis 6. Which form of reproduction is useful ...
openbookqa
obqa_02_03276
which of these would be easiest to measure in volume terms?
[ "the bumper of a car", "the wheel of a car", "a freshly made wine", "a round soccer ball" ]
C
Matter in the liquid phase has definite volume
math_qa
mathqa_03_02541
a tradesman sold an article at a loss of 20 % . if the selling price had been increased by $ 100 , there would have been a gain of 5 % . what was the cost price of the article ?
[ "$ 100", "$ 200", "$ 300", "$ 400" ]
D
"let c . p . be $ x then , ( 105 % of x ) - ( 80 % of x ) = 100 or 25 % of x = 100 x / 4 = 100 x = 400 c . p . = $ 400 correct option is d"
medmcqa
medmcqa_05_03592
Topical sodium cromoglycate is used in treatment of:
[ "Phlyctenular conjunctivitis", "Vernal catarrh", "Subconjunctival haemorrhage", "Trachoma" ]
B
Ans. Vernal catarrh
sciq
sciq_01_09700
What can radioactive strontium replace in the human body making it dangerous?
[ "magnesium", "calcium", "oxygen", "potassium" ]
B
Radioactive strontium is dangerous because it can chemically replace calcium in the human body. The bones are particularly susceptible to radiation damage. Write the nuclear equation for the beta emission of strontium-90.
math_qa
mathqa_03_03980
two passenger trains start at the same hour in the day from two different stations and move towards each other at the rate of 26 kmph and 21 kmph respectively . when they meet , it is found that one train has traveled 60 km more than the other one . the distance between the two stations is ?
[ "288", "564", "877", "278" ]
B
"1 h - - - - - 5 ? - - - - - - 60 12 h rs = 26 + 21 = 47 t = 12 d = 47 * 12 = 564 answer : b"
math_qa
mathqa_03_03594
a and b undertake to do a piece of work for rs . 600 . a alone can do it in 6 days while b alone can do it in 8 days . with the help of c , they finish it in 3 days . ! find the share of each .
[ "25", "50", "75", "80" ]
C
c ' s 1 day ' s work = 1 / 3 - ( 1 / 6 + 1 / 8 ) = 24 a : b : c = ratio of their 1 day ' s work = 1 / 6 : 1 / 8 : 1 / 24 = 4 : 3 : 1 . a ’ s share = rs . ( 600 * 4 / 8 ) = rs . 300 , b ' s share = rs . ( 600 * 3 / 8 ) = rs . 225 . c ' s share = rs . [ 600 - ( 300 + 225 » ) = rs . 75 . answer is c
medmcqa
medmcqa_05_01313
The immune system in asthmatics is skewed to which of the following category?
[ "Th1 phenotype", "Th2 phenotype", "Th3 phenotype", "Th0 phenotype" ]
B
CD4+ effector T cells form two subpopulations distinguished by the different panels of cytokines they secrete: 1. TH1 subset - secretes IL-2, IFN-gama, and TNF-alpha. The TH1 subset is responsible for classic cell-mediated functions, such as delayed-type hypersensitivity and the activation of cytotoxic T lymphocytes an...
ARC-Easy
arc_04_02086
The surface gravity of Pluto is the weakest of the nine planets because Pluto
[ "has the lowest temperature.", "has the smallest mass.", "rotates the slowest.", "is farthest from the Sun." ]
B
null
ARC-Easy
arc_04_00499
How do the spines of a cactus help it survive?
[ "Spines help the cactus get moisture.", "Spines anchor the cactus in the ground.", "Spines protect the cactus from animals.", "Spines support the stems and branches of the cactus." ]
C
null
openbookqa
obqa_02_01125
What will become magnetic in an electromagnet if the battery becomes active?
[ "A construction nail", "A plastic nail", "A nail box", "A wooden nail" ]
A
if battery in an electromagnet is active then the nail in the electromagnet will become magnetic
sciq
sciq_01_04181
What causes acid rain?
[ "chemicals in waterways", "heavy pollution", "air pollution", "carbon dioxide" ]
C
Air pollution causes acid rain, ozone depletion, and global warming.
openbookqa
obqa_02_03248
Which is the most accurate statement?
[ "rocks grow to reach the size they are today", "oaks grow to reach the size they are today", "cell phones grow to reach the size they are today", "plastic forks grow to reach the size they are today" ]
B
all living things grow
sciq
sciq_01_00692
What is used to recrystallize excess dissolved solute in a supersaturated solution?
[ "seed crystal", "fertilizer crystal", "energy crystal", "starter crystal" ]
A
Some solutes, such as sodium acetate, do not recrystallize easily. Suppose an exactly saturated solution of sodium acetate is prepared at 50°C. As it cools back to room temperature, no crystals appear in the solution, even though the solubility of sodium acetate is lower at room temperature. A supersaturated solution i...
sciq
sciq_01_07569
In addition to five classes of fish, what other classes make up the species of vertebrates?
[ "amphibians , vertebrae , birds , and mammals", "reptiles, birds, mammals, and primates", "amphibians, reptiles, birds, and mammals", "insects, amphibians, reptiles, and birds" ]
C
There are about 50,000 living species of vertebrates. They are placed in nine classes: five classes of fish plus amphibians, reptiles, birds, and mammals.