Enzymes - Mock Test 18

Question 171

The best test for acute pancreatitis in the presence of mumps is?

A) A serological test for mumps B) Serum amylase C) Urinary amylase D) Serum lipase

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Question 172

The most useful test for the diagnosis of acute hemorrhagic pancreatitis during the first few days is?

A) Urinary lipase test B) Serum calcium C) Urinary amylase D) Serum amylase

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Question 173

Enzymes increase the rates of reactions by?

A) Increasing the free energy of activation B) Decreasing the energy of activation C) Changing the equilibrium constant of the reaction D) Increasing the free energy change of the reaction

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Question 174

In which of the following types of enzyme water may be added to a C—C double bond without breaking the bond?

A) Hydrolase B) Hydratase C) Hydroxylase D) Esterase

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Question 175

In which of the following types of enzymes an inducer is not required?

A) Inhibited enzyme B) Cooperative enzyme C) Allosteric enzyme D) Constitutive enzyme

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Question 176

Vitamin deficiency that causes fatty liver includes all except?

A) Vitamin E B) Pyridoxine C) Retionic acid D) Pantothenic acid

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Question 177

Pantothenic acid acts on?

A) NADP B) NADPH C) FAD D) CoA

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Question 178

Which of the following regulatory reactions involves a reversible covalent modification of an enzyme?

A) Phosphorylation of serine OH on the enzyme B) Allosteric modulation C) Competitive inhibition D) Non-competitive inhibition

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Question 179

Multiple forms of the same enzymes are known as?

A) Zymogens B) Isoenzymes C) Proenzymes D) Pre-enzymes

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Question 180

Trypsin has no action on?

A) Hemoglobin B) Albumin C) Histone D) DNA

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