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Biology QUESTIONS

Exam NameBiology QUESTIONS
DescriptionBiology QUESTIONS and Answers exams contains the questions from various competitive exams.These questions are the part of previous year paper.These kind of questions would be helpful in preparing for exams like IAS, PCS, UPSC, NDA, CDS SSC, RRB, PSC, IBPS
Exam TypeMASTER EXAM
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creatorAnirudh(39048)
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Question: Which of the following metals react with nitrogen to form nitride ?

Answer:Magnesium


Question: One micron is equal to -

Answer:1/1000th of mm


Question: Hydrometer is an instrument -

Answer:For measuring the specific gravity of liquids


Question: Which thermometer is used to indicate the lowest temperature ?

Answer:Gas thermometer


Question: A chronometer measures -

Answer:Time


Question: One fathom is equal to -

Answer:60 cms


Question: What is the unit for measuring the pitch or frequency of sound ?

Answer:Decible


Question: The fastest acting enzyme in the biological kingdom is -

Answer:amylase


Question: German biochemist, Emil Fischer -

Answer:proposed the theory of competitive inhibition


Question: Enzymes generally have -

Answer:different pH and temperature optima


Question: Coenzyme is -

Answer:always inorganic compound


Question: J. B. Sumner isolated first enzyme from Jackbeans as -

Answer:urease


Question: Enzymes are absent in -

Answer:fungi


Question: The enzymes sucrase acts on -

Answer:all disaccharides


Question: Vitamins are -

Answer:organic substances that cannot be generally synthesized by animals


Question: Richest source of vitamin B1 (thiamine) is -

Answer:eggs


Question: One of these vitamins is called erythrocyte maturation factor -

Answer:B12


Question: The vitamin which can be synthesized in the gut by bacterial action is -

Answer:vitamin B1


Question: Which one of the following is the best source of vitamin A?

Answer:Raddish


Question: Ascorbic acid is -

Answer:Vitamin C