Hormone Metabolism - Mock Test 33

Question 321

A substance which competes with iodide uptake mechanism by thyroid gland is?

A) Thiocynate B) Iodoacetate C) Fluoride D) Fluoroacetate

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Question 322

Excess secretion of thyroid hormones causes?

A) Hyperthyroidism B) Myxoedema C) Cretinism D) Cushing syndrome

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Question 323

The normal serum level of triiodothyronine (T3) is?

A) 0.2–0.5 ng/ml B) 0.7–2.0 ng/ml C) 2.0–4.0 ng/ml D) 5.0–8.0 ng/ml

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Question 324

Presence of significant amount of 5-HIAA in urine indicates?

A) Carcinoid in liver B) Carcinoid in appendix C) Metastasis of carcinoma of liver D) Hepatoma

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Question 325

5 HIAA test is negative if patient is taking?

A) Aspirin B) Colchicine C) Phenothiazone D) Methotrexate

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Question 326

Epinephrine is derived from norepinephrine by?

A) Decarboxylation B) Hydroxylation C) Oxidation D) N-methylation

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Question 327

A cup of strong coffee would be expected to?

A) Interfere with the synthesis of prostaglandins B) Decrease the effect of glucagon C) Enhance the effect of epinephrine D) Provide the vitamin nicotinic acid

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Question 328

Epinephrine stimulates glycogenolysis in?

A) Liver B) Muscle C) Liver and muscle D) Kidney

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Question 329

The biosynthesis of both Catecholamine and serotonin require?

A) Tyrosine hydroxylase B) N-methyl transferase C) Aromatic amino acid decarboxylase D) Tryptophan pyrrolase

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Question 330

In the synthetic pathway of epinephrine, disulfiram ( antabuse ) inhibits the enzyme?

A) Tyrosine hydroxylase B) Dopamine β-hydroxylase C) DOPA decarboxylase D) N-methyl transferase

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