Enzymes - Mock Test 13

Question 121

Dry seeds endure higher temperature than germinating seeds as?

A) Hydration is essential for making enzymes sensitive to temperature B) Dry seeds have a hard covering C) Dry seeds have more reserve food D) Seedlings are tender

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Question 122

Enzymes, vitamins and hormones are common in?

A) Being proteinaceous B) Being synthesized in the body of organisms C) Enhancing oxidative metabolism D) Regulating metabolism

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Question 123

Enzymes are different from catalysts in 1⃣ Being proteinaceous?

A) Being proteinaceous? B) Not used up in reaction C) Functional at high temperature D) Having high rate of diffusion

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Question 124

A protein having both structural and enzymatic traits is?

A) Myosin B) Collagen C) Trypsin D) Actin

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Question 125

Zymogen is a?

A) Vitamin B) Enzyme precursor C) Modulator D) Hormone

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Question 126

In plants, enzymes occur in?

A) Flowers only B) Leaves only C) All living cells D) Storage organs only

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Question 127

Enzyme catalysed reactions occur in?

A) Pico seconds B) Micro seconds C) Milli seconds D) None of these

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Question 128

An organic substance bound to an enzyme and essential for the activity of enzyme is called?

A) Holoenzyme B) Apoenzyme C) Coenzyme D) Isoenzyme

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Question 129

Enzymes are required in traces because they?

A) Have high turnover number B) Remain unused at the end of reaction and are re used C) Show cascade effect D) All correct

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Question 130

The enzyme that converts glucose to glucose-6-phosphate is?

A) Phosphatase B) Hexokinase C) Phosphorylase D) Glucose synthetase

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