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medmcqa
medmcqa_05_00845
Pisiform bone articulates with?
[ "Triquetral", "Lunate", "Scaphoid", "Trapezoid" ]
A
Ans. (a) TriquetralRef: Snell's 8th ed / 402
medmcqa
medmcqa_05_01985
In atresia of cardiac end of stomach, X-ray chest is best done with:
[ "Conray 240", "Urograffin", "Barium sulphate", "Dianosil" ]
D
Ans. Dianosil
sciq
sciq_01_04230
Landslides and mudslides are the most destructive types of what geologic phenomenon?
[ "land momentum", "formation movement", "intensity movement", "mass movement" ]
D
The most destructive types of mass movement are landslides and mudslides. Both occur suddenly.
medmcqa
medmcqa_05_02605
Inferior thyroid aery is related to?
[ "Superior laryngeal nerve", "Recurrent laryngeal nerve", "Glossopharyngeal nerve", "XII nerve" ]
B
The Recurrent laryngeal nerve lies very close to the inferior thyroid aery near the base of the thyroid lobe.
ARC-Easy
arc_04_01238
When an ice cube melts, its state of matter changes from a
[ "gas to a liquid", "solid to a liquid", "liquid to a solid", "solid to a gas" ]
B
null
sciq
sciq_01_11658
What is the study of macroscopic properties, atomic properties, and phenomena in chemical systems?
[ "physical chemistry", "molecular chemistry", "differential chemistry", "thermal chemistry" ]
A
Physical chemistry is the study of macroscopic properties, atomic properties, and phenomena in chemical systems. A physical chemist may study such things as the rates of chemical reactions, the energy transfers that occur in reactions, or the physical structure of materials at the molecular level.
medmcqa
medmcqa_05_02682
Which of the following causes of Anemia is associated with a Hypoplastic marrow:
[ "Fanconi's Anemia", "Paroxysmal Nocturnal Hemoglobinuria (PNH)", "Hypersplenism", "Myelofibrosis" ]
A
Answer is A (Fanconi's Anemia) Constitutional Aplastic Anemias like Fanconi's Anemia are associated with a Thpoplastic Marrow Myelofibrosis, Paroxysmal Nocturnal Hemoglobinuria (PNH) and Hypersplenism are all associated with a cellular marrow.
math_qa
mathqa_03_03541
a vessel of capacity 45 litres is fully filled with pure milk . nine litres of milk is removed from the vessel and replaced with water . nine litres of the solution thus formed is removed and replaced with water . find the quantity of pure milk in the final milk solution ?
[ "28.8", "72.9", "38.3", "78.3" ]
A
"explanation : let the initial quantity of milk in vessel be t litres . let us say y litres of the mixture is taken out and replaced by water for n times , alternatively . quantity of milk finally in the vessel is then given by [ ( t - y ) / t ] ^ n * t for the given problem , t = 45 , y = 9 and n = 2 . hence , quantit...
openbookqa
obqa_02_01086
If Paul is playing basketball and finds that his skin is becoming wet and smelly, it might be because
[ "His body is trying to lower its temperature", "His heart is pumping too fast", "His body is too cold", "The girls watching him play think he looks hot" ]
A
sweat cools a body
medmcqa
medmcqa_05_03296
Frequency polygon is obtained by joining the points of
[ "Bar diagram", "Complete bar diagram", "Multiple bar diagram", "Histogram blocks" ]
D
Ans. d (Histogram blocks) (Ref. Park PSM 22nd/ 788; Methods in Bio-statistics, by B. K. Mahajan 6th/p. 23)Quantitative data is presented by the following graphsQualitative or discrete or enumeration data is presented by the following graphs:# Histogram.# Bar diagram# Frequency polygon.# Pie or sector diagram# Frequency...
openbookqa
obqa_02_00537
Breathing is when the lungs convert oxygen from inhaled air into
[ "oxygen dispersed from respiratory bronchioles through air sacs to hemoglobin proteins", "Glucose particles in the blood", "nitrogen oxide in the blood", "carbon monoxide in the blood" ]
A
breathing is when a lung converts from oxygen in air into oxygen in blood
math_qa
mathqa_03_01285
find the fraction which has the same ratio to 2 / 3 that 3 / 5 has to 6 / 7
[ "1 / 5", "2 / 22", "3 / 4", "7 / 15" ]
D
"p : 2 / 3 = 3 / 5 : 6 / 7 as the product of the means is equal to the product of the extremes . p * 6 / 7 = 2 / 3 * 3 / 5 p * 6 / 7 = 6 / 15 p = 7 / 15 = > p = 7 / 15 answer : d"
sciq
sciq_01_04177
What term describes precipitation that flows over the surface of the land?
[ "erosion", "waves", "runoff", "flood" ]
C
Runoff is precipitation that flows over the surface of the land. This water may travel to a river, lake, or ocean. Runoff may pick up fertilizer and other pollutants and deliver them to a water body. In this way, runoff may pollute bodies of water.
sciq
sciq_01_07699
The normal response of the respiratory system to elevated ph is to increase the amount of what in the blood?
[ "glucose", "acid", "co2", "red blood cells" ]
C
Respiratory Compensation Respiratory compensation for metabolic acidosis increases the respiratory rate to drive off CO2 and readjust the bicarbonate to carbonic acid ratio to the 20:1 level. This adjustment can occur within minutes. Respiratory compensation for metabolic alkalosis is not as adept as its compensation f...
ARC-Challenge
arc_04_02509
Rolando wants to see at what temperature various liquids boil. He boils tap water and records the temperature. He then boils tap water with milk added and tap water with sugar added. What is the purpose of boiling plain tap water first?
[ "to include a factor to manipulate", "to have a possible explanation to a problem", "to change one variable while observing the others", "to provide a standard by which to compare the results" ]
D
null
math_qa
mathqa_03_02956
a train 360 m long is running at a speed of 45 km / hr . in what time will it pass a bridge 160 m long ?
[ "41.6 sec", "11 sec", "88 sec", "19 sec" ]
A
"speed = 45 * 5 / 18 = 25 / 2 m / sec total distance covered = 360 + 160 = 520 m required time = 520 * 2 / 25 = 41.6 sec answer : a"
medmcqa
medmcqa_05_01302
Most common organism causing UI in adult?
[ "H influenza", "Stap aureus", "Strepto pneumonia", "Streptococcus pyogenes" ]
D
Ans. is 'd' i.e., Streptococcus pyogenes Most common cause of upper respiratory tract infection is viral infection. Rhinovirus is the most common cause. Among the bacteria, group A beta-hemolytic streptococci (streptococcus pyogenes) is the most common cause. And most common type of infection is pharyngitis.
math_qa
mathqa_03_00236
evaluate : 1222343 - 12 * 3 * 2 = ?
[ "122336", "145456", "122347", "126666" ]
A
"according to order of operations , 12 ? 3 ? 2 ( division and multiplication ) is done first from left to right 12 * * 2 = 4 * 2 = 8 hence 1222343 - 12 * 3 * 2 = 122343 - 8 = 122336 correct answer a"
sciq
sciq_01_10782
What is the term for the temperature at which a solid changes into a liquid?
[ "the pressure point", "the melting point", "the starting point", "the mixture point" ]
B
The melting point is the temperature at which a solid changes into a liquid.
openbookqa
obqa_02_03920
A frog eats
[ "flowers", "grains", "six legged creatures", "cheeseburgers" ]
C
a frog eats insects
math_qa
mathqa_03_02001
the sector of a circle has radius of 21 cm and central angle 144 o . find its perimeter ?
[ "80 cm", "82 cm", "90 cm", "94.8 cm" ]
D
"perimeter of the sector = length of the arc + 2 ( radius ) = ( 144 / 360 * 2 * 22 / 7 * 21 ) + 2 ( 21 ) = 52.8 + 42 = 94.8 cm answer : d"
sciq
sciq_01_00119
What is the name of the type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate?
[ "meristem", "bundle sheth cell", "guard cell", "cuticle" ]
A
The key to continued growth and repair of plant cells is meristem . Meristem is a type of plant tissue consisting of undifferentiated cells that can continue to divide and differentiate. Meristem at the tips of roots and stems allows them to grow in length. This is called primary growth. Meristem within and around vasc...
sciq
sciq_01_10274
In what type of body of water is most of the earth's water located?
[ "oceans", "streams", "rivers", "seas" ]
A
Most of Earth’s water is salt water in the oceans. As seen below, only 3 percent of Earth’s water is fresh ( Figure below ). Freshwater is water that contains little or no dissolved salt. Most freshwater is frozen in ice caps and glaciers. Glaciers cover the peaks of some tall mountains. For example, the Cascades Mount...
sciq
sciq_01_01849
What is the simple sugar that living things us to store energy?
[ "chloride", "brown", "nicotine", "glucose" ]
D
simple sugar that all living things use to store and transport energy.
openbookqa
obqa_02_00212
You can let someone know you are at the door thanks to a
[ "lemonade", "cars", "grass.", "power plant" ]
D
a doorbell converts electrical energy into sound
openbookqa
obqa_02_02279
A plant that using transpiration is
[ "filtering liquid nicotine", "adjusting water content", "evaporating oils", "flavoring leaves" ]
B
plants control the amount of water in their leaves through transpiration
math_qa
mathqa_03_01997
a rectangular courtyard , the sides of which are in the ratio of 4 : 3 , cost rs . 600 for paving at 50 p per m 2 ; find the length of the diagonal of the courtyard ?
[ "17 m'", "45 m'", "54 m'", "77 m'" ]
B
1 m 2 - - - - 1 / 2 ? - - - - - 600 = > 1200 m 2 4 x * 3 x = 1200 = > x = 10 answer : b
sciq
sciq_01_09142
What is the process by which plants capture the energy of sunlight and use carbon dioxide from the air (and water) to make their own food called?
[ "photosynthesis", "atherosclerosis", "spermatogenesis", "photochemistry" ]
A
Recall that eukaryotic organisms also include animals, protists, and fungi. Eukaryotes have cells with nuclei that contain DNA, and membrane-bound organelles, such as mitochondria. Photosynthesis is the process by which plants capture the energy of sunlight and use carbon dioxide from the air (and water) to make their ...
ARC-Challenge
arc_04_02970
Sulfur (S), oxygen (O2), water (H2O), and sodium chloride (NaCl) are all examples of pure substances. Which of the following describes all pure substances?
[ "A pure substance consists of only one type of element.", "A pure substance has a definite chemical composition.", "A pure substance cannot be broken down into simpler substances.", "A pure substance is normally found as a solid at room temperature." ]
B
null
sciq
sciq_01_06317
What is type of substance is formed when water vapor condenses or when ice melts?
[ "chemical water", "liquid water", "toxic water", "gaseous water" ]
B
Liquid water is formed when water vapor condenses (i. e. , H 2 O(g) → H 2 O(l) or when ice melts (i. e. , H 2 O(s) → H 2 O(l)). Because water is a molecular substance, it is a poor conductor of electricity in its pure form. However, as we will see later, its conductivity can be improved by the addition of certain subst...
openbookqa
obqa_02_00910
When a plant is watered, spraying water on leaves is less useful than
[ "spritzing the stem of the plant", "putting the plant in the rain", "using a sprinkler system", "pouring water on soil" ]
D
roots are a vehicle for absorbing water and nutrients from soil into the plant
sciq
sciq_01_03815
Dna is normally found within what region of a cell?
[ "genome sequence", "nucleus", "mitochondria", "Golgi apparatus" ]
B
the nucleus. The nucleus contains one or more nucleoli, which serve as sites for ribosome synthesis. The nucleus houses the genetic material of the cell: DNA. DNA is normally found as a loosely contained structure called chromatin within the nucleus, where it is wound up and associated with a variety of histone protein...
medmcqa
medmcqa_05_01404
Pyruvate is conveed to which substance to sta gluconeogenesis?
[ "Oxaloacetate", "Phosphenol pyruvate", "Cis-aconitate", "Succinate" ]
A
GLUCONEOGENESIS 1. Definition - It is the process by which glucose molecules are produced from non-carbohydrate precursors. These include lactate, glucogenic amino acids, glycerol pa of fat and propionyl CoA derived from odd chain fatty acids. 2. Site - Gluconeogenesis occurs mainly in the liver, and to a lesser extent...
openbookqa
obqa_02_04100
A ferret darting around a space in the wild in a panic is likely
[ "grooming itself", "eluding foe", "winning marathons", "laying eggs" ]
B
some animals move quickly to escape predators
openbookqa
obqa_02_01788
Peat may be beneficial to
[ "cats", "birds", "tomatoes", "dolphins" ]
C
the formation of peat occurs at the bottom of swamps
openbookqa
obqa_02_04231
Because clouds are what make rain, storms are unlikely to happen when the sky is
[ "murdered", "clear and cloudy", "candy", "clear and cloudless" ]
D
clouds produce rain
ARC-Easy
arc_04_00570
Which of these provides the best evidence that the distribution of Earth's oceans has changed over time?
[ "hot spots on ocean floors", "seismic activity along plate boundaries", "sediment buildup on continental slope", "marine fossils found on land masses" ]
D
null
ARC-Easy
arc_04_01695
Which event would most likely result in more food for organisms that are scavengers?
[ "Fish die and sink to the bottom of a pond.", "Trees take up and store water with roots.", "Beavers build a new dam and lodge.", "Plants get more sunshine and water." ]
A
null
medmcqa
medmcqa_05_00389
Widmark's formula helps in the measurement of blood level of -
[ "Cocaine", "Alcohol", "Barbiturates", "Benzodiazepines" ]
B
The Widmark formula is provided in equation is a = cpr. Where a = amount of alcohol in grams absorbed in body, c = concentration of alcohol in blood in grams/kg, p = weight of person in kilogram and r = constant. In men, the constant is 0.68 and in women it is 0.55. * For urine analysis, the formula is a = 3/4 qpr. The...
sciq
sciq_01_05233
What is never lost and just changes forms?
[ "fuel", "energy", "life", "food" ]
B
This platform is about to change energy from potential to kinetic. The energy is not lost; it just changes forms. The is on top of a precipice. The rest of the ride runs on the potential energy the platform has when it is at the top.
openbookqa
obqa_02_01367
Flowers provide substance for many animals like
[ "Whales", "Seals", "Dolphins", "squirrels" ]
D
a flower 's purpose is to produce seeds
openbookqa
obqa_02_01282
A person fills their tank with fossil fuels, and knows that in one hundred years
[ "they may be more bountiful", "they may be more frequent", "they may cease existing", "they may be free" ]
C
fossil fuels are a nonrenewable resource
sciq
sciq_01_09622
What is a coil of wire with electric current flowing through it called?
[ "tectonic valve", "hydraulic valve", "carrier valve", "a solenoid" ]
D
An electromagnet is a solenoid wrapped around a bar of iron or other ferromagnetic material. A solenoid is a coil of wire with electric current flowing through it. This gives the coil north and south magnetic poles and a magnetic field. The magnetic field of the solenoid magnetizes the iron bar by aligning its magnetic...
sciq
sciq_01_09367
What is the term for organisms that make their own food?
[ "omnivores", "monocots", "autotrophs", "plastids" ]
C
Autotrophs are organisms that make their own food. Most autotrophs use the energy in sunlight to make food in a process called photosynthesis . Only three types of organisms—plants, algae, and some bacteria—can make food through photosynthesis. Examples of each type of photosynthetic organism are shown in Figure below ...
sciq
sciq_01_08192
What is produced by the reaction of metal oxide with water?
[ "heat energy", "rust", "hydrogen gas", "soluble metal hydroxides" ]
D
Hydroxides Hydroxides are compounds that contain the OH− ion. It is possible to prepare these compounds by two general types of reactions. Soluble metal hydroxides can be produced by the reaction of the metal or metal oxide with water.
openbookqa
obqa_02_04946
All living things do what?
[ "swim", "develop", "fly", "shrink" ]
B
all living things grow
ARC-Easy
arc_04_02085
What safety equipment should be taken on all field trips?
[ "gloves", "fire extinguisher", "first-aid kit", "goggles" ]
C
null
sciq
sciq_01_06023
What is the scale on which acidity is measured?
[ "μm", "hp", "μg", "ph" ]
D
The concentration of hydronium ions in a solution is known as acidity. In pure water, the concentration of hydronium ions is very low; only about 1 in 10 million water molecules naturally breaks down to form a hydronium ion. As a result, pure water is essentially neutral. Acidity is measured on a scale called pH , as s...
math_qa
mathqa_03_02652
the units digit of ( 35 ) ^ ( 87 ) + ( 93 ) ^ ( 53 ) is :
[ "2", "4", "6", "8" ]
D
the units digit of powers of 3 , cycles in a group of 4 : { 3 , 9 , 7 , 1 } 53 has the form 4 k + 1 , so the units digit of 93 ^ 53 is 3 . the units digit of powers of 5 is always 5 . 3 + 5 = 8 , so the units digit is 8 . the answer is d .
math_qa
mathqa_03_02627
bookman purchased 60 copies of a new book released recently , 10 of which are hardback and sold for $ 20 each , and rest are paperback and sold for $ 10 each . if 14 copies were sold and the total value of the remaining books was 660 , how many paperback copies were sold ?
[ "22", "24", "26", "28" ]
B
"the bookman had 10 hardback ad 60 - 10 = 50 paperback copies ; 14 copies were sold , hence 60 - 14 = 46 copies were left . let # of paperback copies left be p then 10 p + 20 ( 46 - p ) = 660 - - > 10 p = 260 - - > p = 26 # of paperback copies sold is 50 - 26 = 24 answer : b"
sciq
sciq_01_08150
What is the name of the process for delivering water to crops?
[ "drainage", "irrigation", "bilge", "reclamation" ]
B
Many crops are grown where there isn’t enough rainfall for plants to thrive. For example, crops are grown in deserts of the American Southwest. How is this possible? The answer is irrigation. Irrigation is any way of providing extra water to plants. Most of the water used in agriculture is used for irrigation. Livestoc...
openbookqa
obqa_02_03380
If a thing is being drawn to another thing of the same material, they are probably
[ "quartz", "plastic", "diamond", "iron" ]
D
a magnet attracts magnetic metals through magnetism
sciq
sciq_01_00656
What is the term for land that has permanently frozen soil?
[ "Arctic", "snow-field", "ice desert", "permafrost" ]
D
Permafrost is land with permanently frozen soil.
medmcqa
medmcqa_05_04026
Tuberculin test is -
[ "Subcutaneous", "Intradermal", "Intramuscular", "Subdermal" ]
B
Ans. is 'b' i.e., Intradermal o In tuberculin test, injection is given intradermally on flexor (ventral) surface of left forearm, mid-wav between elbow & wrist.Intradermal injection of PPDon flexor aspect of forearm | Examined at 48-72 hours |||Induration > 10 mmInduration < 5 mmInduration 6-9 mm|||PositiveNegativeEqui...
sciq
sciq_01_01343
Where are integral proteins embedded?
[ "mitochondria", "cytoplasm", "hemoglobin", "libid bilayer" ]
D
sciq
sciq_01_07008
Compounds with metals and nonmetals sharing electrons are known as what kinds of compounds?
[ "atoms", "ions", "eons", "acids" ]
B
The Formation of Ionic Compounds Binary ionic compounds are composed of just two elements: a metal (which forms the cations) and a nonmetal (which forms the anions). For example, NaCl is a binary ionic compound. We can think about the formation of such compounds in terms of the periodic properties of the elements. Many...
math_qa
mathqa_03_01513
express 5 mps in kmph ?
[ "22", "88", "90", "18" ]
D
"5 * 18 / 5 = 18 kmph answer : d"
sciq
sciq_01_06051
A standing wave is created when what type of wave interferes with the original wave?
[ "reflected wave", "realized wave", "refracted wave", "translated wave" ]
A
When a wave meets a barrier, it reflects and travels back the way it came. The reflected wave may interfere with the original wave. If this occurs in precisely the right way, a standing wave can be created. The types of standing waves that can form depend strongly on the speed of the wave and the size of the region in ...
sciq
sciq_01_10750
What is the male gamete called in humans?
[ "egg", "dna", "sperm", "testes" ]
C
27.1 | Anatomy and Physiology of the Male Reproductive System By the end of this section, you will be able to: • Describe the structure and function of the organs of the male reproductive system • Describe the structure and function of the sperm cell • Explain the events during spermatogenesis that produce haploid sper...
openbookqa
obqa_02_01801
A cloud gets fat and heavy because
[ "precipitation destroys", "clouds float", "precipitation condenses", "precipitation falls" ]
C
condensation is a stage in the water cycle process
sciq
sciq_01_07549
What do herbivores eat?
[ "meat and plants", "animals", "plants", "minerals" ]
C
Herbivores eat plants, carnivores eat meat, and omnivores eat both.
math_qa
mathqa_03_04178
in one alloy there is 12 % chromium while in another alloy it is 8 % . 15 kg of the first alloy was melted together with 30 kg of the second one to form a third alloy . find the percentage of chromium in the new alloy .
[ "9.4 %", "9.33 %", "9.6 %", "9.8 %" ]
B
"the amount of chromium in the new 15 + 30 = 45 kg alloy is 0.12 * 15 + 0.08 * 30 = 4.2 kg , so the percentage is 4.2 / 45 * 100 = 9.33 % . answer : b ."
math_qa
mathqa_03_02071
jill invests $ 10000 in an account that pays an annual rate of 3.96 % , compounding semi - annually . approximately how much e does she have in her account after two years ?
[ "$ 10079.44", "e = $ 10815.83", "$ 12652.61", "$ 14232.14" ]
B
"ps . i guess one can use simple interest to solve cause the answer choices are quite spread between you can easily arrive at something near 8 % hence b the answer"
sciq
sciq_01_07913
What type of plant keeps it green leaves year-round?
[ "deciduous", "conifer", "evergreen plant", "cactus" ]
C
An evergreen plant keeps its green leaves year-round. It may have needle-like leaves to reduce water loss.
ARC-Easy
arc_04_00738
Which scientist formulated rules that describe the observable relationships of plant traits to the traits of the ancestor plants?
[ "Linus Pauling", "Gregor Mendel", "James Watson", "Albert Einstein" ]
B
null
medmcqa
medmcqa_05_04574
Clouding of consciousness is seen in:
[ "Dementia", "Delirium", "Schizophrenia", "Depression" ]
B
Ans. (b) DeliriumRef.: Harrison 19th ed. /166DELIRIUM* It is characterized by global impairment of consciousness (clouding of consciousness), resulting in reduced levels of alertness, attention & perception of environment along with acute onset of fluctuating cognitive impairment.* It is the commonest organic mental di...
medmcqa
medmcqa_05_04348
In sickle cell crisis bone pain is due to:
[ "Bone infarction", "Osteroporosis", "Osteomalacia", "Periosteal reaction" ]
A
In sickle cell crisis bone pain is due to bone infarction. RBC are sticky, so branching blood vessels gets occluded leading to infarction. "Fish mouth veebra" seen in sickle cell anemia.
openbookqa
obqa_02_00056
Two ships grazing each other as they pass will
[ "cause mayhem", "sink them", "speed them up", "slow them down" ]
D
friction acts to counter the motion of two objects when their surfaces are touching
medmcqa
medmcqa_05_03723
Surfacant is made up of :
[ "Surfacant is made up of :", "Mucoprotein", "Phospholipids", "Fibrinogen" ]
C
C i.e. Phospholipids
sciq
sciq_01_01108
The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called what?
[ "alveoli", "testes", "glands", "brachii" ]
A
Breathing certainly is a major contribution to your health! Without breathing, we could not survive. Curiously, the act of breathing itself is little more than an application of Boyle’s law. The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called alveoli. It is in the alveoli that oxygen...
math_qa
mathqa_03_00282
tom , working alone , can paint a room in 6 hours . peter and john , working independently , can paint the same room in 3 hours and 5 hours , respectively . tom starts painting the room and works on his own for one hour . he is then joined by peter and they work together for an hour . finally , john joins them and the ...
[ "19 / 35", "23 / 42", "27 / 55", "31 / 63" ]
D
"tom paints 1 / 6 of the room in the first hour . tom and peter paint 1 / 6 + 1 / 3 = 1 / 2 of the room in the next hour for a total of 4 / 6 . the three people then paint the remaining 2 / 6 in a time of ( 2 / 6 ) / ( 21 / 30 ) = 10 / 21 hours peter worked for 31 / 21 hours so he painted 31 / 21 * 1 / 3 = 31 / 63 of t...
medmcqa
medmcqa_05_01009
MAC of an anesthetic agent is the measure of its?
[ "Potency", "Speed of induction and recovery", "Lipid solubility", "Toxicity" ]
A
Ans. is 'a' i.e., Potency * Minimum alveolar concentration (MAC) - Measure of potency.* Blood: Gas partition coefficient - Blood solubility of anesthetic agent and determines the speed of induction & recovery.* Oil: Gas partition coefficient - Lipid solubility of anesthetic agent and is related to potency of anesthetic...
medmcqa
medmcqa_05_03885
Chlamydia in pregnancy, what is the best treatment?
[ "Doxycycline", "Tetracycline", "Azithromycin", "Penicillin" ]
C
Azithromycin is first-line treatment and has been found to be safe and effective in pregnancy. The fluoroquinolones, erythromycin estolate and doxycycline are avoided in Pregnancy.
openbookqa
obqa_02_00127
Peat is an important factor when
[ "Driving a new car", "Putting a fresh raspberry seed in soil", "Taking the temperature for the day", "Having a large breakfast" ]
B
being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time
medmcqa
medmcqa_05_00553
Most potent stimulator of naive cell is?
[ "Mature dendritic cell", "Follicular dendritic cell", "Macrophages", "B cell" ]
A
Mature dendritic cell fig . Dendritic cells and dendrite cells derived cytokines are the most potent stimulator for proliferation of Naive T Naive T cells are newly produced T cells. Mature B and T cells before antigenic exposure are called naive B and cells. T cells respectively. These cells respond to the newly encou...
medmcqa
medmcqa_05_04825
Antenatal mother with epilepsy on phenytoin therapy must be given:
[ "Folic acid supplementation", "Vitamin B12 supplementation", "Vitamin B6 supplementation", "Vitamin A supplementation" ]
A
Ans. (a) Folic acid supplementationRef: D. C Dutta 8th ed./ 585* Use of anti- epileptic drugs like phenytoin, valproate and even phenobarbitone has been shown in pregnancy to contribute to acquire folic acid deficiency.* If a lady is deficient in folic acid at the time of her pregnancy, then the baby most likely will b...
medmcqa
medmcqa_05_04728
Storage form of thyroid hormone-
[ "Tri-iodo tyrosine", "Tri - iodo thyronine", "Thyroglobulin", "Di-iodo tyrosine" ]
C
The synthesis and storage of thyroid hormones occurs between the follicular cells and the colloid. The storage form of thyroid hormone is thyroglobulin. Thyroglobulin is a large glycoprotein synthesized in the follicular cells and has a molecular weight of around 650 000 with about 140 tyrosine residues, depending on t...
medmcqa
medmcqa_05_02687
Most common presentation of mumps -
[ "Pain and lacrimation of eye", "Pain and swelling of parotid glands", "Pain and swelling of submandibular and sublingual glands", "Aseptic meningitis" ]
B
Ans. is 'b' i.e., Pain and swelling of parotid glands Mumpso It is an acute contagious disease characterized by nonsuppurative enlargement of one or both salivary glands,o Mumps virus belongs to paramyxoviruso Source of infection - Clinical and subclinical caseso Man is the only natural hosto Age groupo Period of infec...
math_qa
mathqa_03_04827
a and b can do a piece of work in 2 days , b and c in 3 days , c and a in 4 days . how long will c take to do it ?
[ "14 days", "20 days", "22 days", "24 days" ]
D
"2 c = 1 / 3 + 1 / 4 – 1 / 2 = 1 / 12 c = 1 / 24 = > 24 days answer : d"
medmcqa
medmcqa_05_02677
Black powder composition:
[ "15 % potassium nitrate + 10 % sulphur + 10% charcoal", "15 % potassium nitrate + 8 % sulphur + 10% charcoal", "75 % potassium nitrate + 8% sulphur + 15% charcoal", "75 % potassium nitrate + 10% sulphur + 15% charcoal" ]
D
There are two types of Powder 1. Black Powder - consists of 75% KNO3-, 10% Sulphur and 15% Charcol 2. Smokeless powder - It consists of nitroglycerine, nitrocellulose and nitroguanide 3. Semi smokeless gun powder - Black (80%) + Smokeless (20%) - It is designated as FG, FFG, FFFG, etc., depending on the size of the gra...
medmcqa
medmcqa_05_03583
Which muscle causes retraction of scapula ?
[ "Serratus anterior", "Levator scapulae", "Rhomboideus major", "Supraspinatus" ]
C
Ans. is 'c' i.e., Rhomboideus major Movements of scapula Muscles causing movements Elevation Trapezius (upper pa), levator scapulae Depression Pectoralis minor, serratus anterior Protraction Serratus anterior, pectoralis minor Retraction Rhomboideus major Rhomboideus minor, Trapezius Forward rotation of inferior angle(...
sciq
sciq_01_00301
What is another name for composite volcanos?
[ "fjords", "stratovolcanoes", "fault lines", "seismic giants" ]
B
Composite volcanoes are also called stratovolcanoes. This is because they are formed by alternating layers (strata) of magma and ash ( Figure below ). The magma that creates composite volcanoes tends to be thick. The steep sides form because the lava cannot flow too far from the vent. The thick magma may also create ex...
sciq
sciq_01_01086
What takes place when water on earth’s surface changes to water vapor?
[ "absorption", "evaporation", "condensation", "transpiration" ]
B
Evaporation takes place when water on Earth’s surface changes to water vapor. The sun heats the water and gives water molecules enough energy to escape into the atmosphere. Most evaporation occurs from the surface of the ocean.
math_qa
mathqa_03_04558
the annual birth and death rate in a country per 1000 are 39.4 and 19.4 respectively . the number of years b in which the population would be doubled assuming there is no emigration or immigration is
[ "20", "25", "b = 30", "b = 35" ]
D
"suppose the population of the country in current year is 1000 . so annual increase is 1000 + 39.4 - 19.4 = 1020 hence every year there is an increase of 2 % . 2000 = 1000 ( 1 + ( 2 / 100 ) ) ^ n n = 35 answer is d ."
ARC-Easy
arc_04_01194
One way animals usually respond to a sudden drop in temperature is by
[ "sweating", "shivering", "blinking", "salivating" ]
B
null
sciq
sciq_01_05384
What system protects the body from worms, germs, and other agents of harm?
[ "immune", "lymph system", "hormones", "digestion" ]
A
The immune system protects the body from worms, germs, and other agents of harm. The immune system is like a medieval castle. The outside of the castle was protected by a moat and high stone walls. Inside the castle, soldiers were ready to fight off any invaders that managed to get through the outer defenses. Like a me...
openbookqa
obqa_02_01688
One breed of penguins, the Galapagos Penguin lives in the warm waters off the coast of
[ "Equador", "India", "Haiti", "Australia" ]
A
warm-weather organisms live in warm climates
ARC-Easy
arc_04_01126
All metabolic functions fall into one of two categories: a breaking down process (catabolic) or a building up process (anabolic). Which is an example of an anabolic process?
[ "respiration", "protein synthesis", "oxygen transport", "carbohydrate digestion" ]
B
null
openbookqa
obqa_02_03740
January is during the winter in what location?
[ "Cape Town", "Melbourne", "Caracas", "Rio de Janeiro" ]
C
January is during the winter in the northern hemisphere
medmcqa
medmcqa_05_03074
Drug used for prophylaxis of meningococcal meningitis: September 2008
[ "Chloramphenicol", "Erythromycin", "Tetracyclin", "Rifampicin" ]
D
Ans. D: Rifampicin Sho-term antibiotic prophylaxis is also a method of prevention, paicularly of meningococcal meningitis. In cases of meningococcal meningitis, prophylactic treatment of close contacts with antibiotics (e.g. rifampicin, ciprofloxacin or ceftriaxone) can reduce their risk of contracting the condition, b...
math_qa
mathqa_03_00638
thirty percent of the women in a college class are science majors , and the non - science majors make up 60 % of the class . what percentage of the men are science majors if 40 % of the class are men ?
[ "35 %", "45 %", "55 %", "65 %" ]
C
science majors make up 0.4 of the class . 60 % of the class are women and 0.3 * 0.6 = 0.18 of the class are female science majors . then 0.22 of the class are male science majors . 0.4 x = 0.22 x = 0.55 = 55 % the answer is c .
medmcqa
medmcqa_05_01430
Which of the following is not a feature of red infarction? September 2010
[ "Venous occlusion", "Occurs in organs having dual circulation", "Occurs in solid organs", "Occurs in previously congested tissues" ]
C
Ans. C: Occurs in solid organsRed infarctions (hemorrhagic infarcts), generally affect the lungs or other loose organs (testis, ovary, small intestines). The occlusion consists more of red blood cells and fibrin strands.Characteristics of red infarcts include: occlusion of a vein; loose tissues that allow blood to coll...
math_qa
mathqa_03_03922
the distance from the x - axis to point p is half the distance from the y - axis to point p . if the coordinates of p are ( x , - 9 ) , how many units is p from the y - axis ?
[ "18", "12", "9", "4.5" ]
A
"the x - axis is 9 units from the point p . thus the y - axis is 18 units from the point p . the answer is a ."
sciq
sciq_01_10168
What is the process by which plants make their own food?
[ "respiration", "ATP cycle", "photosynthesis", "mitochondrial process" ]
C
openbookqa
obqa_02_01813
Which land type is covered in snow for the largest portion of the year?
[ "tiaga and", "prairie", "deciduous forest", "desert" ]
A
cold environments are usually white in color from being covered in snow
math_qa
mathqa_03_01630
by selling a book for 260 , 20 % profit was earned . what is the cost price of the book ?
[ "a", "b", "c", "d" ]
B
"sp = 120 % of cp ; : . cp = 260 × 100 / 120 = 216 option ' b '"
openbookqa
obqa_02_00942
The hamster was malnourished because
[ "There was a depletion in the corn supply", "It went on a hunger strike", "It was paralyzed in the mouth", "It was waiting for the key to get the food" ]
A
as the amount of food an animal eats decreases , that organism will become thinner
openbookqa
obqa_02_03679
If I wanted to use a tree as inspiration to make a house more sturdy what part would I use?
[ "the leaves", "the pine cones", "the fruit", "the roots" ]
D
a trunk is a source of support for a tree
medmcqa
medmcqa_05_01381
Drug used for atrial fibrillation and atrial flutter is
[ "Verapamil", "Digitalis", "Quinidine", "Diphenylhydantoin" ]
B
For AF, digoxin can be used- it decreases ventricular rate in AF Verapamil decreases conduction velocity and increases the refractory period of the AV node and so used in PSVT. REF.Essentials of Pharmacology KD Tripathi 8th ed.
math_qa
mathqa_03_03074
a leak in the bottom of a tank can empty the full tank in 6 hours . an inlet pipe fills water at the rate of 4 litres a minute . when the tank is full , the inlet is opened and due to the leak the tank is empty in 8 hours . the capacity of the tank ( in litres ) is
[ "5780 litres", "5770 litres", "5760 litres", "5750 litres" ]
C
"explanation : work done by the inlet in 1 hour = 1 / 6 − 1 / 8 = 1 / 24 work done by inlet in 1 min = 1 / 24 ∗ 1 / 60 = 1 / 1440 = > volume of 1 / 1440 part = 4 liters volume of whole = ( 1440 * 4 ) litres = 5760 litres . option c"