Hormone Metabolism - Mock Test 14

Question 131

Secretion of catecholamines is increased in?

A) Cushing’s syndrome B) Addison’s disease C) Phaeochromocytoma D) Simmond’s disease

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Question 132

Epinephrine increases the concentration of free fatty acids in plasma by increasing?

A) Extramitochondrial fatty acid synthesis B) Mitochondrial fatty acid chain elongation C) Microsomal fatty acid chain elongation D) Lipolysis in adipose tissue

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Question 133

Epinephrine decreases?

A) Glycogenesis B) Glycogenolysis C) Gluconeogenesis D) Lipolysis

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Question 134

Phosphoinositide cascade is activated on binding of catecholamines to?

A) α1-Adrenergic receptors B) α2-Adrenergic receptors C) β1-Adrenergic receptors D) β2-Adrenergic receptors

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Question 135

Binding of catecholamines to α2− adrenergic receptors?

A) Increases the intracellular concentration ofcAMP B) Increases the intracellular concentration ofcGMP C) Decreases the intracellular concentration ofcAMP D) Decreases the intracellular concentration ofcGMP

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Question 136

Astimulatory G-protein transduces the signals from?

A) α1-and β1-adrenergic receptors B) α2-and β2-adrenergic receptors C) α1-and α2-adrenergic receptors D) β1-and β2-adrenergic receptors

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Question 137

A common intermediate in the synthesis of cortisol and aldosterone is?

A) Progesterone B) Testosterone C) Estradiol D) None of these

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Question 138

A common intermediate in the synthesis of all the steroid hormones is?

A) Pregnenolone B) 17-Hydroxypregnenolone C) Corticosterone D) Progesterone

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Question 139

Steroid hormones are synthesised in all of the following except?

A) Testes B) Ovaries C) Adrenal medulla D) Adrenal cortex

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Question 140

The major mineralcorticoid is?

A) Hydrocortisone B) Aldosterone C) Aldactone A D) Androstenedione

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