IGCSE O Level Biology MCQs - Chapter 19

What Are Enzymes Trivia Questions and Answers PDF - 4

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What Are Enzymes Questions & Answers PDF Download: MCQ Quiz 4

MCQ 16: PH value of above 7 indicates

pure water
pure enzyme
pure alkaline
pure acidic

MCQ 17: Substance which can alter or speed up the chemical reaction without itself being chemically unchanged is

saliva
pathology
catalyst
influenza

MCQ 18: Denatured protein enzymes are but

more soluble
low coagulation
easily affected by acids and alkaline substances
sparingly insoluble

MCQ 19: In order to increase the rate of reaction, the

limiting factor shall increase
limiting factor shall decrease
substrate concentration shall be increased
enzyme concentration shall be increased

MCQ 20: Lipases helps in digestion of

lipids
carbohydrates
proteins
liver juices

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