Hormone Metabolism - Mock Test 19

Question 181

Mental retardation can occur in?

A) Cretinism B) Juvenile myxoedema C) Myxoedema D) Juvenile thyrotoxicosis

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Question 182

All the following may occur in myxoedema except?

A) Cold intolerance B) Low BMR C) Tachycardia D) Dry and coarse skin

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Question 183

All the following may occur in hyperthyroidism except?

A) Goitre B) Increased appetite C) Loss of weight D) Low BMR

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Question 184

All the following may occur in hyperthyroidism except?

A) Goitre B) Increased appetite C) Loss of weight D) Low BMR

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Question 185

Secretion of thyroid hormones is regulated by?

A) Hypothalamus B) Anterior pituitary C) Feedback regulation D) All of these

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Question 186

Binding of thyroxine to its receptors?

A) Activates Adenylate cyclase B) Activates guanylate cyclase C) Activates a stimulatory G-protein D) Increases transcription

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Question 187

Receptors for thyroid hormones are present?

A) On the cell membrane B) Across the cell membrane C) Inside the cells D) In association with G-proteins

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Question 188

When thyroxine binding globulin and thyroxine binding pre-albumin are saturated with thyroxine, the excess hormone is transported by?

A) Albumin B) Gamma globulins C) Transcortin D) None of these

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Question 189

Thyroid gland takes up circulating iodine?

A) By simple diffusion B) By facilitated diffusion C) By active uptake D) In exchange for chloride

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Question 190

In thyroxine, tyrosine residues are iodinated at positions?

A) 1 and 3 B) 2 and 4 C) 3 and 5 D) 4 and 6

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