Enzymes - Mock Test 15

Question 141

‘Lock’ and ‘Key’ theory was proposed by?

A) Sorenson B) Fischer C) Mehler D) Sanger

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Question 142

All the isoenzymes function with the coenzyme?

A) NADP+ B) FAD C) Lipoate D) NAD+

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Question 143

How many different proteins may be present in normal LDH?

A) One B) Two C) Three D) Four

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Question 144

How many different proteins may be present in normal LDH?

A) One B) Two C) Three D) Four

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Question 145

The chemical forces that bind most coenzymes and substrates to enzymes such as LDH are?

A) Hydrogen bonds B) Peptide bonds C) Coordinate bonds D) Covalent bonds

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Question 146

LDH assays are most useful in diagnosing diseases of the?

A) Heart B) Pancreas C) Brain D) Kidney

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Question 147

The abnormal isoenzyme need not?

A) Be an oxidoreductase B) Have any coenzyme C) Require ATP D) Be localized intracellularly (E) Be a catalyst

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Question 148

Which one of the following statements is not characteristic of allosteric enzymes?

A) They frequently catalyze a committed step early in a metabolic pathway B) They are often composed of subunits C) They follow Michaelis-Menten kinetics D) They frequently show cooperativity for substrate binding

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Question 149

Which one of the following statements is not characteristic of allosteric enzymes?

A) They frequently catalyze a committed step early in a metabolic pathway B) They are often composed of subunits C) They follow Michaelis-Menten kinetics D) They frequently show cooperativity for substrate binding

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Question 150

Which one of the following statements is not characteristic of allosteric enzymes?

A) They frequently catalyze a committed step early in a metabolic pathway B) They are often composed of subunits C) They follow Michaelis-Menten kinetics D) They frequently show cooperativity for substrate binding

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