Biochemistry - Mock Test 38

Question 371

Isoelectric point of amino acids is used for?

A) Crystallisation B) Precipitation C) Solubility D) Reactivity

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Question 372

When the net charge on an amino acid is zero, the pH is maintained as?

A) 4.5 B) 11.2 C) 7 D) 9.1

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Question 373

Proteins which are responsible for defence mechanism are called?

A) Antimetabolites B) Antibodies C) Antimycins D) Apoproteins

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Question 374

Insulin is a protein which controls?

A) Blood clotting B) Metabolic pathway C) Digestion D) Kreb’s cycle

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Question 375

Proteinous substances which catalyze biochemical reactions are known as?

A) Activators B) Catalysts C) Enzymes D) Hormones

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Question 376

All the following amino acids are optically active except?

A) Tryptophane B) Phenylalanine C) Valine D) Glycine

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Question 377

Protein is a polymer of?

A) Sugars B) Phenols C) Amino acids D) Carboxylic acids

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Question 378

All the following diuretics inhibit the carbonic anhydrase except?

A) Acetazolamide B) Bumetanide C) Furosemide D) Ethacrynic acid

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Question 379

Phenylalanine, ornithine and methionine are involved in the biogenesis of?

A) Lysergic acid B) Reserpine C) L-Hyoscyamine D) Papaverine

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Question 380

The solubility of most proteins is lowered at high salt concentrations is called as?

A) Salting in process B) Salting out process C) Isoelectric focussing D) None of these

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