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7.76k
sciq
sciq_01_09904
When the helium is gone, the stars become what?
[ "yellow dwarfs", "white dwarfs", "red giants", "comets" ]
B
When the helium is gone, the stars become white dwarfs.
openbookqa
obqa_02_04265
A cat's body temperature would be highest if immersed in
[ "apple juice", "lava", "liquid nitrogen", "water" ]
B
an island is formed by lava cooling on the ocean floor over time
sciq
sciq_01_01191
What is the term for polyatomic ligands with two or more donor atoms?
[ "polyamines", "proteins", "chelates", "angiosperms" ]
C
Transition metals form metal complexes, polyatomic species in which a metal ion is bound to one or more ligands, which are groups bound to a metal ion. Complex ions are electrically charged metal complexes, and a coordination compound contains one or more metal complexes. Metal complexes with low coordination numbers g...
openbookqa
obqa_02_00586
What is safest to breathe around?
[ "coal plant", "Union Carbide plant", "windmill", "automobile" ]
C
a windmill does not create pollution
sciq
sciq_01_02470
What are the two types of fatty acids?
[ "saturated and biodegradable", "saturated and endogenous", "saturated and unsaturated", "hydrochloric and carboxylic" ]
C
A lipid is an organic compound such as fat or oil. Organisms use lipids to store energy, but lipids have other important roles as well. Lipids consist of repeating units called fatty acids. There are two types of fatty acids: saturated fatty acids and unsaturated fatty acids.
math_qa
mathqa_03_02288
a sum of money at simple interest amounts to rs . 800 in 3 years and to rs . 850 in 4 years . the sum is :
[ "rs . 670", "rs . 690", "rs . 600", "rs . 625" ]
C
"explanation : s . i . for 1 year = rs . ( 850 - 800 ) = rs . 50 . s . i . for 3 years = rs . ( 50 x 3 ) = rs . 150 . principal = rs . ( 800 - 150 ) = rs . 600 . answer : option c"
sciq
sciq_01_09570
What is defined as the product of a force times the distance over which the force acts?
[ "energy", "matter", "work", "motion" ]
C
Work is defined as the product of a force times the distance over which the force acts. The force and the distance must act along the same line; if the angle between them is not (or ) then you must use the component of force; hence the in the equation.
openbookqa
obqa_02_00239
Small, usually red plastic squares are often placed on transporters such as bicycles in order to
[ "create light", "show color", "identify drivers", "shine light" ]
D
a reflector is used to reflect light especially on vehicles
math_qa
mathqa_03_04436
a rectangular lawn of dimensions 80 m * 50 m has two roads each 10 m wide running in the middle of the lawn , one parallel to the length and the other parallel to the breadth . what is the cost of traveling the two roads at rs . 3 per sq m ?
[ "a", "b", "c", "d" ]
D
"explanation : area = ( l + b – d ) d ( 80 + 50 – 10 ) 10 = > 1200 m 2 1200 * 3 = rs . 3600 answer : option d"
math_qa
mathqa_03_01280
by selling 8 pencils for a rupee a man loses 60 % . how many for a rupee should he sell in order to gain 60 % ?
[ "8", "9", "2", "6" ]
C
"40 % - - - 8 160 % - - - ? 40 / 160 * 12 = 2 answer : c"
medmcqa
medmcqa_05_04525
Fincham test differentiates cataract from
[ "Conjunctivitis", "Iridocyclitis", "Open angle glaucoma", "Acute congestive glaucoma" ]
D
The colored halos in glaucoma must be differentiated from those found in acute purulent conjunctivitis and early cataractous changes. In conjunctivitis, the halos can be eliminated by irrigating the discharge. The halos of glaucoma and immature cataract may be differentiated by Fincham&;s test in which a stenopaeic sli...
math_qa
mathqa_03_03730
there are 3 vessels of equal capacity . vessel a contains milk and water in the ratio 7 : 3 ; vessel b contains milk and water in the ratio 2 : 1 and vessel c contains milk and water in the ratio 3 : 2 . if the mixture in all the 3 vessels is mixed up . what will be the ratio of milk and water ?
[ "59 : 31", "3 : 2", "118 : 126", "193 : 122" ]
A
7 : 3 = > 7 x + 3 x = 10 x 2 : 1 = > 2 y + 1 y = 3 y 3 : 2 = > 3 z + 2 z = 5 z 10 x = 3 y = 5 z take lcm of 10 , 3,5 = 30 or simply ; x = 3 y = 10 z = 6 so , ratio of milk : water = ( 7 x + 2 y + 3 z ) / ( 3 x + y + 2 z ) = 59 / 31 ans : a
medmcqa
medmcqa_05_00590
RAAS mechanism is mainly regulated by:
[ "Beta stimulation", "Alpha blocker", "Aldosterone antagonism", "Na+ K+ ATPase" ]
A
Ans. (a) Beta stimulationRef: Harrison 19th ed. /1613* The Renin-Angiotensin-Aldosterone System(R.A.AS) contributes to the regulation of arterial pressure primarily via the vasoconstrictor properties of angiotensin II and the sodium-retaining properties of aldosterone.There are Three Primary Stimuli for Renin Secretion...
sciq
sciq_01_10024
In their pure form, all elements have an oxidation number of what?
[ "3", "zero", "2", "7" ]
B
All elements have an oxidation number of zero in their pure form.
openbookqa
obqa_02_02319
Which activity would most increase atmospheric CO2?
[ "gardening", "walking", "speedboat driving", "planting trees" ]
C
carbon dioxide concentrations in the air have increased over the last decade dramatically
math_qa
mathqa_03_02937
what could be the range of a set consisting of odd multiples of 3 ?
[ "21", "24", "35", "62" ]
B
"range = the difference between the greatest and the smallest numbers in the sequence . our sequence is odd and is a multiple of 7 . every number in that sequence can be represented like this : 3 * ( 2 n + 1 ) where n is any positive integer . range = 3 * ( 2 m + 1 ) - 3 * ( 2 n + 1 ) = 3 * 2 * ( m - n ) = 6 * ( m - n ...
sciq
sciq_01_04174
Kidney stones can form anywhere in what system?
[ "urinary", "digestive", "respiratory", "intestinal" ]
A
A kidney stone. The stones can form anywhere in the urinary system.
openbookqa
obqa_02_03678
humans sometimes eat
[ "plant reproduction vessels", "unicorns", "lava", "clouds" ]
A
humans sometimes eat seeds
math_qa
mathqa_03_04275
a 300 m long train crosses a platform in 40 sec while it crosses a signal pole in 18 sec . what is the length of the platform ?
[ "288", "350", "889", "367" ]
D
"speed = 300 / 18 = 50 / 3 m / sec . let the length of the platform be x meters . then , ( x + 300 ) / 40 = 50 / 3 3 x + 900 = 2000 = > x = 367 m . answer : d"
sciq
sciq_01_08387
What limits the growth or development of an organism, population, or process?
[ "mutation factor", "limiting membrane", "decreasing factor", "limiting factor" ]
D
In the predator-prey example, one factor limits the growth of the other factor. As the prey population decreases, the predator population begins to decrease as well. The prey population is a limiting factor. A limiting factor limits the growth or development of an organism, population, or process.
medmcqa
medmcqa_05_03755
HIV virus has :
[ "Single stranded DNA", "Single stranded RNA", "Double stranded DNA", "Double stranded RNA" ]
B
Classification of HIV ( = HTLV III) Family – Retroviridae Subfamily – Lentivirus Genome – SS RNA positive sense. • Virion contain lipoprotein envelope and nucleocapsid is icosahedral in shape. • Characteristic feature of retrovirus is presence of reverse transcriptase enzyme. – Viral RNA is transcribed by this enzyme ...
medmcqa
medmcqa_05_03222
For the first 2hrs after delivery, the temperature should be recorded
[ "Every 5 mins", "Every 15 mins", "Every 30 mins", "Hourly" ]
B
Care after delivery: For 2hrs after delivery, BP and pulse should be taken every 15 min. Temperature assessed every 4 hrs for the first 8hrs and then 8 hourly subsequently Amount of vaginal bleeding should be monitored Fundus of uterus palpated to ensure that it is well contracted. Ref: Williams 24e pg 675.
medmcqa
medmcqa_05_02686
Which of the following is a features of tympanic membrane perforation -
[ "Tinnitus", "Vertigo", "Conductive deafness", "Fullness in ear" ]
C
Tympanic membrane perforation is associated with a conductive hearing loss of 10-40 dB.
ARC-Easy
arc_04_00985
Which is an example of a chemical change?
[ "sand separated from water by filtering", "water evaporating from a puddle", "a rock being eroded by wind", "a nail rusting in water" ]
D
null
openbookqa
obqa_02_01285
At a campsite one night we all gather round a fire to roast marshmallows; this is an example of
[ "dinner", "fusion", "maillard reaction", "competition" ]
C
cooking causes a chemical reaction
openbookqa
obqa_02_02060
In NYC, what would you expect during December?
[ "less day light", "less rain", "less weather", "less moonlight" ]
A
when the season changes , the amount of daylight will change
math_qa
mathqa_03_00420
simple interest on a certain sum of money for 3 years at 8 % per annum is half the compound interest on rs . 4000 for 2 years at 10 % per annum . the sum placed on simple interest is
[ "rs 1650", "rs 1750", "rs 1850", "rs 1950" ]
B
"explanation : c . i . = ( 4000 × ( 1 + 10 / 100 ) 2 − 4000 ) = 4000 ∗ 11 / 10 ∗ 11 / 10 − 4000 = 840 so s . i . = 840 / 2 = 420 so sum = s . i . ∗ 100 / r ∗ t = 420 ∗ 100 / 3 ∗ 8 = rs 1750 option b"
sciq
sciq_01_02121
What is the diffusion of water known as?
[ "electrolysis", "evaporation", "osmosis", "hemostasis" ]
C
Osmosis is the special case of the diffusion of water. It's an important means of transport in cells because the fluid inside and outside cells is mostly water. Water can pass through the cell membrane by simple diffusion, but it can happen more quickly with the help of channel proteins. Water moves in or out of a cell...
openbookqa
obqa_02_04519
There is more friction the more rough a surface being touched has, so the most friction would be found in
[ "river stones smashing", "hands clapping", "mirrors pressing together", "stone falling" ]
A
friction occurs when two object 's surfaces move against each other
sciq
sciq_01_05632
What causes a small scrap of paper placed on top of the water droplet to float , although the object is denser (heavier) than the water?
[ "diffusion", "transfusion", "van der waals force", "surface tension" ]
D
a small scrap of paper onto a droplet of water, the paper floats on top of the water droplet, although the object is denser (heavier) than the water. This occurs because of the surface tension that is created by the water molecules. Cohesion and surface tension keep the water molecules intact and the item floating on t...
sciq
sciq_01_06280
What type of learning is done from past experiences and reasoning?
[ "consequence learning", "rational learning", "insight learning", "transformation learning" ]
C
Insight learning is learning from past experiences and reasoning. It usually involves coming up with new ways to solve problems. Insight learning generally happens quickly. An animal has a sudden flash of insight. Insight learning requires relatively great intelligence. Human beings use insight learning more than any o...
sciq
sciq_01_07236
What nucleic acid stores the genetic information?
[ "dna", "Ribosomes", "Nucleus", "molecule" ]
A
Nucleic acids are large polymers formed by linking nucleotides together and are found in every cell. Deoxyribonucleic acid (DNA) is the nucleic acid that stores genetic information. If all the DNA in a typical mammalian cell were stretched out end to end, it would extend more than 2 m. Ribonucleic acid (RNA) is the nuc...
sciq
sciq_01_00451
Molecules in the gas phase can collide with the liquid surface and reenter the liquid via what?
[ "condensation", "fermentation", "liquidation", "combustion" ]
A
pressure above the liquid. Molecules in the gas phase can collide with the liquid surface and reenter the liquid via condensation. Eventually, a steady state is reached in which the number of molecules evaporating and condensing per unit time is the same, and the system is in a state of dynamic equilibrium. Under these...
medmcqa
medmcqa_05_03906
Structure passing deep to flexor retinaculum is
[ "Post tibial aery", "Long saphenous vein", "Tibialis anterior tendon", "Peroneus teius" ]
A
The flexor retinaculum is a thickened band of deep fascia on the posteromedial aspect of ankle. The deep relations of flexor retinaculum from above downwards or medio laterally are tibialis posterior, flexor digitorum longus , posterior tibial aery , tibial nerve ,flexor hallucis longus. Reference: clinical anatomy for...
medmcqa
medmcqa_05_02879
A 42-year-old woman presents to the emergency depament at 8 PM, mildly somnolent and complaining of the "worst headache of her life," which began at 6 AM on the same day, awakening her. She took acetaminophen (Tylenol) twice during the day, with some relief. At noon she staed to have nausea with vomiting, and by 3 PM s...
[ "Epilepsy", "Hypoglycemia", "Transient ischemic attack", "Subarachnoid hemorrhage" ]
D
Spontaneous SAH often is due to aneurysmal rupture. These headaches are described as the worst headache of the patient's life. They frequently are misdiagnosed as migraine or tension headaches or viral illness. The clinical presentation consists of one or more of the following: decreased level of consciousness, increas...
openbookqa
obqa_02_00306
Webbed feet aid in what
[ "penguins laying eggs on ice", "fish hiding in coral reefs", "gulls dive bombing fish from the sea", "ducks chasing prey underwater" ]
D
webbed feet are used for moving faster through water by aquatic animals
medmcqa
medmcqa_05_03462
Which of the following is not spread by Aedes mosquito -
[ "Dengue fever", "Chickungunya", "Japanese encephalitis", "Yellow fever" ]
C
Ans. is 'c' i.e., Japanese encephalitis
math_qa
mathqa_03_03603
15 litres of mixture contains 20 % alcohol and the rest water . if 3 litres of water be mixed with it , the percentage of alcohol in the new mixture would be ?
[ "16.67 %", "23 %", "18.3 %", "19.75 %" ]
A
"alcohol in the 15 litres of mix . = 20 % of 15 litres = ( 20 * 15 / 100 ) = 3 litres water in it = 15 - 3 = 12 litres new quantity of mix . = 15 + 3 = 18 litres quantity of alcohol in it = 3 litres percentage of alcohol in new mix . = 3 * 100 / 18 = 50 / 3 = 16.67 % answer is a"
sciq
sciq_01_10065
Pressure and vibration are examples of what type of stimuli?
[ "thermal", "chemical", "physical", "atmospheric" ]
C
Functional Receptor Types A third classification of receptors is by how the receptor transduces stimuli into membrane potential changes. Stimuli are of three general types. Some stimuli are ions and macromolecules that affect transmembrane receptor proteins when these chemicals diffuse across the cell membrane. Some st...
sciq
sciq_01_02665
The attraction of an atom for the electrons of a covalent bond is its what?
[ "hardness", "weight", "electronegativity", "brightness" ]
C
openbookqa
obqa_02_04404
An object converts electrical energy into sound on a
[ "iphone", "soft carpet", "outside wall", "wooden table" ]
A
sound can travel through air
sciq
sciq_01_00400
What is the term for a random change in allele frequencies that occurs in a small population?
[ "speciation", "genetic drift", "evolution", "mutation" ]
B
Genetic drift is a random change in allele frequencies that occurs in a small population. When a small number of parents produce just a few offspring, allele frequencies in the offspring may differ, by chance, from allele frequencies in the parents.
math_qa
mathqa_03_02756
carmen made a sculpture from small pieces of wood . the sculpture is 2 feet 10 inches tall . carmen places her sculpture on a base that is 4 inches tall . how tall are the sculpture andbase together ?
[ "3.17 feet'", "3.2 feet'", "3.3 feet'", "3.4 feet'" ]
A
we know 1 feet = 12 inch then 2 feet = 24 inch 24 + 10 = 34 then 34 + 4 = 38 38 / 12 = 3.17 feet answer : a
sciq
sciq_01_00270
More than half of all known organisms are what?
[ "enzymes", "mammals", "spiders", "insects" ]
D
The majority of arthropods are insects (Class Insecta). In fact, more than half of all known organisms are insects. There may be more than 10 million insect species in the world, although most of them have not yet been identified. In terms of their numbers and diversity, insects clearly are the dominant animals in the ...
openbookqa
obqa_02_02843
The organ most made of muscle is the
[ "one pumping blood", "brain", "liver", "kidney" ]
A
the heart is mostly made of muscle
sciq
sciq_01_00503
What force is responsible for erosion by flowing water and glaciers?
[ "gravity", "kinetic", "weight", "electromagnetic" ]
A
Gravity is responsible for erosion by flowing water and glaciers. That’s because gravity pulls water and ice downhill. These are ways gravity causes erosion indirectly. But gravity also causes erosion directly. Gravity can pull soil, mud, and rocks down cliffs and hillsides. This type of erosion and deposition is calle...
sciq
sciq_01_03836
The digestive, excretory, and reproductive systems of amphibians share a body cavity called what?
[ "stoma", "urethra", "cloaca", "anus" ]
C
All amphibians have digestive, excretory, and reproductive systems. All three systems share a body cavity called the cloaca. Wastes enter the cloaca from the digestive and excretory systems, and gametes enter the cloaca from the reproductive system. An opening in the cloaca allows the wastes and gametes to leave the bo...
sciq
sciq_01_11091
The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what?
[ "a rainbow", "the molecule", "an element", "the atom" ]
D
The emission spectrum of hydrogen is discontinuous. The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within the atom.
sciq
sciq_01_03164
Air flows into the lungs largely due to a difference in what?
[ "thrust", "gravity", "resistance", "pressure" ]
D
Pulmonary Ventilation The difference in pressures drives pulmonary ventilation because air flows down a pressure gradient, that is, air flows from an area of higher pressure to an area of lower pressure. Air flows into the lungs largely due to a difference in pressure; atmospheric pressure is greater than intra-alveola...
openbookqa
obqa_02_00300
Humans are
[ "Air", "Sunlight", "Water", "Plants" ]
C
animals require water for survival
medmcqa
medmcqa_05_04834
Multiple punched out lesions on X-ray is seen in:
[ "Paget's disease", "Craniopharyngioma", "Multiple myeloma", "Eosinophilic granuloma" ]
C
Ans. Multiple myeloma
medmcqa
medmcqa_05_02550
Best blood product to be given in a patient of multiple clotting factor deficiency with active bleeding:
[ "Whole blood", "Packed RBCs", "Fresh frozen plasma", "Cryoprecipitate" ]
C
Ans. c. Fresh frozen plasma (Ref: Harrison 19/e p138 e-3 18/e p953. Sabiston 19/e p588)Best blood product to be given in a patient of multiple clotting factor deficiency with active bleeding is fresh frozen plasma."FFP contains stable coagulation factors and plasma proteins: fibrinogen, antithrombin, albumin, as well a...
math_qa
mathqa_03_03348
how many integers from 0 to 44 , inclusive , have a remainder of 1 when divided by 3 ?
[ "13", "16", "17", "18" ]
A
"explanation : 1 also gives 1 remainder when divided by 3 , another number is 4 , then 7 and so on . hence we have an arithmetic progression : 1 , 4 , 7 , 10 , . . . . . 43 , which are in the form 3 n + 1 . now we have to find out number of terms . tn = a + ( n - 1 ) d , where tn is the nth term of an ap , a is the fir...
sciq
sciq_01_08148
What type of light sensing organs do scaophopoda have?
[ "antennae", "setae", "cilia", "radula" ]
D
Members of class Scaphopoda (“boat feet”) are known colloquially as “tusk shells” or “tooth shells,” as evident when examining Dentalium, one of the few remaining scaphopod genera (Figure 28.27). Scaphopods are usually buried in sand with the anterior opening exposed to water. These animals bear a single conical shell,...
ARC-Challenge
arc_04_02795
Some water use is consumptive. Instead of returning to its source, the water evaporates from reservoirs or transpires from crops. How does this type of use most likely affect the hydrosphere?
[ "by reducing the total amount of water on Earth", "by altering the paths of the water through the Earth system", "by shifting water to different stages in the water cycle", "by affecting climate in a way that alters the water cycle" ]
C
null
sciq
sciq_01_01388
What occurs when two opposite charges are separated by some amount of distance?
[ "radioactivity", "particle", "dipole", "diffusion" ]
C
A dipole occurs when two opposite charges are separated by some amount of distance. We have already seen dipoles in the form of polar bonds. For example, each O-H bond in water is an example of a dipole; the partial positive charge on hydrogen is separated from the partial negative charge on oxygen by the length of the...
ARC-Challenge
arc_04_02839
An engineer can choose from four different materials to make a heat-resistant handle for a stirring spoon. Which material is least likely to get hot when the spoon is placed in boiling water?
[ "Ceramic", "Wood", "Glass", "Iron" ]
B
null
sciq
sciq_01_09381
The outer planets are made of hydrogen and helium, so they are termed what?
[ "light giants", "helium giants", "hydrogen giants", "gas giants" ]
D
The outer planets are made of hydrogen and helium, so they are called gas giants.
sciq
sciq_01_02187
Which organ secretes estrogen?
[ "the ovaries", "the thyroid", "the kidney", "the testes" ]
A
The ovaries release the eggs and secrete estrogen.
sciq
sciq_01_01052
Surface tension is a property of matter that is in what state?
[ "Base", "mixture", "liquid", "water" ]
C
Molecules within a liquid are pulled equally in all directions by intermolecular forces. However, molecules at the surface are pulled downwards and sideways by other liquid molecules, but not upwards away from the surface. The overall effect is that the surface molecules are pulled into the liquid, creating a surface t...
sciq
sciq_01_04141
Fractures, osteoarthritis, and rickets are problems of which body system?
[ "circulatory system", "digestive system", "skeletal system", "cardiovascular system" ]
C
Skeletal system problems include fractures, osteoarthritis, and rickets.
sciq
sciq_01_01587
What structures of the cardiovascular system help regulate body processes by either constricting or dilating?
[ "cartilage", "blood vessels", "muscles", "capillaries" ]
B
Blood vessels help regulate body processes by either constricting (becoming narrower) or dilating (becoming wider). These actions occur in response to signals from the autonomic nervous system or the endocrine system. Constriction occurs when the muscular walls of blood vessels contract. This reduces the amount of bloo...
openbookqa
obqa_02_03301
Clapping in an auditorium will yield this for a few moments afterwards:
[ "solar flares", "urine", "indignant", "echo" ]
D
when a sound is produced inside of a room , there is sometimes an echo after the sound
openbookqa
obqa_02_01150
in order for utility of a tool to occur, what has to happen first?
[ "it needs to be cleaned", "none of these", "it needs to be baptized", "it needs to be invented" ]
D
inventing a tool allows that tool to be used
medmcqa
medmcqa_05_04515
Which of the following is not a feature of paralytic ileus?
[ "Hypoactive bowel sounds", "Presence of gas in rectum", "Colicky pain", "Dilated bowel loops with multiple air fluid levels on X-ray" ]
C
Paralytic ileus Failure of transmission of peristaltic waves due to neuromuscular failure. Etiology: Abd Sx Intra-abdominal infection Dyselectrolytemia Drugs Clinical presentation Abdominal distention Vomiting Dilated bowel loops No mechanical obstruction Paralytic ileus Mechanical obstruction Pain is not a feature of ...
openbookqa
obqa_02_01704
An example of something that contains sugar is
[ "air", "cats", "wind", "Peppers" ]
D
carbohydrates are made of sugars
sciq
sciq_01_10824
Although they are as different as deserts and wetlands, all of these ecosystem units have populations of interacting species?
[ "zoos", "corals", "continents", "biomes" ]
D
Biomes as different as deserts and wetlands share something very important. All biomes have populations of interacting species. Species interact in the same basic ways in all biomes. For example, all biomes have some species that prey on others for food.
math_qa
mathqa_03_03560
a man can swim in still water at 9 km / h , but takes twice as long to swim upstream than downstream . the speed of the stream is ?
[ "1.7", "1.9", "3", "1.5" ]
C
"m = 9 s = x ds = 9 + x us = 9 - x 9 + x = ( 9 - x ) 2 9 + x = 18 - 2 x 3 x = 9 x = 3 answer : c"
medmcqa
medmcqa_05_01138
NMDA blocker used as antitussive is
[ "Pholcodeine", "Dextromethorphan", "Diphenhydramine", "Aprepitant" ]
B
Dextromethorphan is a NMDA blocker which is a less potent antitussive. Side effects include addiction liability & hallucination.
sciq
sciq_01_11267
What substances digest the food in the vacuole of an ingestive protist?
[ "hormones", "carbohydrates", "lipids", "enzymes" ]
D
Ingestive protists ingest, or engulf, bacteria and other small particles. They extend their cell wall and cell membrane around the food item, forming a food vacuole. Then enzymes digest the food in the vacuole.
medmcqa
medmcqa_05_01806
Which drug can be given as a nail lacquer treatment in onychomycosis?
[ "Fluconazole", "Nystatin", "Itraconazole", "Terbinafine" ]
D
Ciclopirox olamine(nail lacquer) is most effective topical drug for Rx of mild to moderate onychomycosis Drug for Rx onychomycosis Dose Terbinafine 250 mg/day for 6 and 12 wks in fingernail and toenail onychomycosis respectively. Itraconazole Pulse therapy: 200 mg twice daily for 1 wk/month for 2 and 3 consecutive mont...
ARC-Challenge
arc_04_02498
Both hurricanes and tornadoes always ___.
[ "cause flooding", "are hundreds of miles wide", "have high winds", "produce light snow" ]
C
null
openbookqa
obqa_02_04631
If a rock has been exposed to prolonged heat, what might the effect be?
[ "Shrinking", "Breaking", "Erosion", "Melting" ]
C
being exposed to heat can cause erosion of rocks
sciq
sciq_01_02885
What term is used to describe the parts of the brain involved in the reception and interpretation of sensory stimuli collectively?
[ "glial cells", "neurons", "medulla oblongata", "sensorium" ]
D
Sensorium Those parts of the brain involved in the reception and interpretation of sensory stimuli are referred to collectively as the sensorium. The cerebral cortex has several regions that are necessary for sensory perception. From the primary cortical areas of the somatosensory, visual, auditory, and gustatory sense...
sciq
sciq_01_01460
What happens to meteors as they fall through the mesosphere?
[ "they burn", "they bounce", "they grow", "they stop suddenly" ]
A
Did you ever see a meteor shower, like the one in Figure below ? Meteors burn as they fall through the mesosphere. The space rocks experience friction with the gas molecules. The friction makes the meteors get very hot. Many meteors burn up completely in the mesosphere.
sciq
sciq_01_02600
What do we call water that has been used for cleaning, washing, flushing, or manufacturing?
[ "Grey water", "groundwater", "wastewater", "sewage" ]
C
Fresh water is also preserved by purifying wastewater. Wastewater is water that has been used for cleaning, washing, flushing, or manufacturing. It includes the water that goes down your shower drain and that is flushed down your toilet. Instead of dumping wastewater directly into rivers, wastewater can be purified at ...
medmcqa
medmcqa_05_00113
A 50-year-old obese woman has long-standing type 2 diabetes mellitus inadequately controlled on metformin and pioglitazone. Insulin glargine (15 units subcutaneously at bedtime) has recently been started because of a hemoglobin A1C level of 8.4. Over the weekend, she develops nausea, vomiting, and diarrhea after exposu...
[ "Diabetic ketoacidosis", "Hyperosmolar nonketotic state", "Syndrome of inappropriate antidiuretic hormone (ADH) secretion", "Drug-induced hyponatremia" ]
B
This woman with poorly controlled diabetes has developed hyperglycemia and lethargy during an episode suggestive of viral gastroenteritis. Her presentation is most consistent with hyperosmolar nonketotic state. This condition typically occurs in type 2 diabetics who become volume depleted and develop renal insufficienc...
openbookqa
obqa_02_01054
What could a person eat to avoid starvation?
[ "Akvavit", "Jeggings", "Carmex", "Floss" ]
A
lack of food causes starvation
openbookqa
obqa_02_01876
What can you use to protect your eyes from the sun?
[ "shoes", "pants", "nails", "sheet of paper" ]
D
looking directly at an eclipse of the Sun causes harm to the eyes
sciq
sciq_01_02664
What is the reproductive part of the plant?
[ "the flower", "the leaf", "the core", "the stem" ]
A
sciq
sciq_01_07544
What type of interspecies relationship involves one party being actively harmed?
[ "parasitism", "mosaicism", "mutualism", "symbiosis" ]
A
Symbiosis is a close relationship between two species in which at least one species benefits. Mutualism is a symbiotic relationship in which both species benefit. Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. Parasitism is a symbiotic relationship in whi...
math_qa
mathqa_03_01695
mr . hernandez , who was a resident of state x for only 9 months last year , had a taxable income of $ 42,500 for the year . if the state tax rate were 4 percent of the year ’ s taxable income prorated for the proportion of the year during which the taxpayer was a resident , what would be the amount of mr . hernandez ’...
[ "$ 900", "$ 1275", "$ 1200", "$ 1300" ]
B
total tax for the year = 42,500 x 4 % = 1700 as stated annual tax is prorated as per the duration of stay . prorated tax = 1700 ( 9 / 12 ) = 1275 answer b
sciq
sciq_01_10309
What is the nervous tissue in the brain and in the rest of the nervous system made up of?
[ "plastic", "neurons", "ions", "electrons" ]
B
Nervous tissue is made up of neurons , or nerve cells, that carry electrical messages. Nervous tissue makes up the brain and the nerves that connect the brain to all parts of the body.
openbookqa
obqa_02_00505
What United States unit of measurement would be most comparable to a meter stick
[ "Mile Marker", "ruler", "Tape Measurer", "Yardstick" ]
D
a meter stick is used to measure length
medmcqa
medmcqa_05_04204
Bottle mouth syndrome is most frequently seen in :
[ "Deciduous maxillary incisors.", "Deciduous mandibular incisors.", "Deciduous maxillary molars.", "Deciduous mandibular molars." ]
A
Nursing bottle caries is also known as Bottle mouth syndrome.
medmcqa
medmcqa_05_00846
Which of the following is consistent with diagnosis of De-Quervain thyroiditis?
[ "45 year female with 2 week history of painful thyroid gland with elevated T4, T3 and low TSH. RAIU shows increased uptake", "25 year female with painless enlarged thyroid with elevated T4,T3 and undetectable TSH. RAIU shows increased uptake", "45 year female with fatigue and low T4, T3 and Low TSH", "45 year...
D
De Quervain thyroiditis is characterised by fever, constitutional symptoms and painful enlarged thyroid due to viral etiology. Initially T4 and T3 are elevated due to damage to follicles. RAIU uptake is reduced. Subsequently hypothyroid phase sets in and RAIU becomes normal. Option A is wrong due to increased RAIU upta...
medmcqa
medmcqa_05_02761
Which of the following diseases is appropriately treated with combined heart-lung transplantation?
[ "Primary pulmonary hypertension", "Cystic fibrosis", "End-stage emphysema", "Idiopathic dilated cardiomyopathy with long-standing secondary pulmonary hypertension" ]
D
Many causes of end-stage lung disease have been appropriately treated with lung transplantation. Whether one lung or both lungs are replaced at the time of transplantation depends on recipient factors. Patients with restrictive processes like primary pulmonary fibrosis do well with a single lung transplant. For patient...
openbookqa
obqa_02_00272
Seasons of the year highly impact what?
[ "Moods", "Environment", "Behavior", "Consumption" ]
B
seasons cause change to the environment
math_qa
mathqa_03_00056
what is the value of ( p + q ) / ( p - q ) if p / q is 4 ?
[ "5 / 3", "2 / 3", "2 / 6", "7 / 8" ]
A
"( p + q ) / ( p - q ) = [ ( p / q ) + 1 ] / [ ( p / q ) - 1 ] = ( 4 + 1 ) / ( 4 - 1 ) = 5 / 3 = 5 / 3 answer : a"
sciq
sciq_01_06329
Molecular geometry is the three-dimensional arrangement of atoms in a what?
[ "genes", "molecule", "DNA", "nucleus" ]
B
Molecular geometry is the three-dimensional arrangement of atoms in a molecule. The molecular geometry, or shape, of a molecule is an important factor that affects the physical and chemical properties of a compound. Those properties include melting and boiling points, solubility, density, and the types of chemical reac...
sciq
sciq_01_06979
Canoe paddles, nutcracker, and hammer are examples of what type of simple machine?
[ "lock", "pivot", "lever", "handle" ]
C
The canoe paddles, nutcracker, and hammer that you read about in this lesson have something in common. All three are examples of a type of simple machine called a lever.
ARC-Easy
arc_04_01064
Which process causes the leaves of a plant to become larger?
[ "repair", "growth", "decomposition", "germination" ]
B
null
math_qa
mathqa_03_01732
the diagonals of a rhombus are 14 cm and 18 cm . find its area ?
[ "176", "190", "150", "126" ]
D
"1 / 2 * 14 * 18 = 126 answer : d"
sciq
sciq_01_10090
Normal blood is comprised of nearly half erythrocytes, which is another word for what cells?
[ "white blood cells", "monocytes", "red blood cells", "plateletes" ]
C
Composition of Blood You have probably had blood drawn from a superficial vein in your arm, which was then sent to a lab for analysis. Some of the most common blood tests—for instance, those measuring lipid or glucose levels in plasma—determine which substances are present within blood and in what quantities. Other blo...
medmcqa
medmcqa_05_03945
Before the onset of pubey, the GnRH neurons are under the inhibitory control of:
[ "Glycine", "Glutamate", "Gamma amino butyric acid (GABA)", "Beta-endorphin" ]
C
The transition to a reproductive state (during pubey) requires maturation of the entire hypothalamic-pituitary-gonadal axis. Before this maturation occurs, plasma LH and FSH levels are diminished despite low concentrations of gonadal steroids and inhibin. GnRH neurons are said to be under inhibitory influence of GABAer...
sciq
sciq_01_00852
What two elements do chloroplasts split water into?
[ "vaporize and oxygen", "Carbon and water", "hydrogen and oxygen", "Salt and sodium" ]
C
sciq
sciq_01_09285
The air bubbles resulting from cavitation expand and block water channels of the what?
[ "heart", "respiration", "ectoderm", "xylem" ]
D
openbookqa
obqa_02_03184
which of these days would lead to a suspension of regular activities?
[ "a very sunny day", "a very beautiful day", "a very bright day", "a day with a blizzard" ]
D
snowy means a large amount of snow
math_qa
mathqa_03_03655
an escalator is descending at constant speed . a walks down and takes 50 steps to reach the bottom . b runs down and takes 90 steps in the same time as a takes 10 steps . how many steps are visible when the escalator is not operating ?
[ "80", "90", "100", "110" ]
C
lets suppose that a walks down 1 step / min and escalator moves n steps / min it is given that a takes 50 steps to reach the bottom in the same time escalator would have covered 50 n steps so total steps on escalator is 50 + 50 n . again it is given that b takes 90 steps to reach the bottom and time taken by him for th...
sciq
sciq_01_08296
The kidneys help control acid-base balance by excreting _____ and generating bicarbonate that helps maintain blood plasma ph within a normal range?
[ "hydrogen ions", "lithium ions", "magnesium ions", "sodium ions" ]
A
Buffer Systems in the Body The buffer systems in the human body are extremely efficient, and different systems work at different rates. It takes only seconds for the chemical buffers in the blood to make adjustments to pH. The respiratory tract can adjust the blood pH upward in minutes by exhaling CO2 from the body. Th...