Biochemistry (Hormones Set 1)

1 / 25

ACTH induces rise in :

A) Cyclic AMP

B) Cyclic GMP

C) Calcium

D) Magnesium

2 / 25

The circulating concentration of ACTH in plasma is :

A) 0.05 mµ/100 m

B) 0.1–2.0 mµ/100 ml

C) 2.5–3.5 mµ/100 ml

D) 3.0–5.0 mµ/100 ml

3 / 25

Hormone that bind to cell surface receptor
and require the second messenger camp is :

A) Antidiuretic hormone

B) Cholecystokinin

C) Calcitriol

D) Gastrin

4 / 25

The number of amino acids in prolactin is :

A) 134

B) 146

C) 172

D) 199

5 / 25

Hormones :

A) Act as coenzyme

B) Act as enzyme

C) Influence synthesis of enzymes

D) Belong to B-complex group

6 / 25

The predominant glucocorticoid is :

A) Cortisol

B) Aldosterone

C) Dehydroephiandrosterone

D) Androstenedione

7 / 25

Growth hormone is released by :

A) Somatostatin

B) Growth hormone releasing hormone

C) Prolactin release inhibiting hormone

D) Luteinizing releasing hormone

8 / 25

Hormone that binds to intracellular receptor is :

A) Adrenocorticotropic hormone

B) Thyroxine

C) Follicle stimulating hormone

D) Glucagon

9 / 25

ACTH stimulates the secretion of :

A) Glucocorticoids

B) Epinephrine

C) Thyroxine

D) Luteinizing hormone

10 / 25

Cortisol is synthesized in :

A) Zona fasiculata

B) Zona glomerulosa

C) Zona reticularis

D) Chromaffin cells

11 / 25

Adrenocorticotropic hormone (ACTH) is a
single polypeptide containing :

A) 25 amino acid

B) 39 amino acid

C) 49 amino acid

D) 52 amino acid

12 / 25

Cushing’s syndrome-a tumour associated disease of adrenal cortex, there is :

A) Decreased epinephrine production

B) Excessive cortisol production

C) Excessive epinephrine production

D) Decreased cortsoil production

13 / 25

A specific cortisol binding protein, transcortin is a :

A) Albumin

B) α1-Globulin

C) α2-Globulin

D) β-Globulin

14 / 25

A hormone secreted from posterior pituitary is :

A) Vasopressin

B) Thyrotropic hormone

C) Prolactin

D) Adrenocorticotropic hormone

15 / 25

Growth hormone causes hyperglycemia. It is a result of :

A) Decreased peripheral utilization of glucose

B) Decreased hepatic production via gluconeogenes

C) Increased glycolysis in muscle

D) Decrersed lipolysis

16 / 25

Excessive secretion of ACTH causes :

A) Cushing’s syndrome

B) Addison’s disease

C) Myxoedema

D) Thyrotoxicosis

17 / 25

In adrenal gland the cholesterol is stored :

A) Mostly in the free form

B) Mostly in esterified form

C) Large amount of free form and less amount of esterified form

D) Equal amounts of free and esterified form

18 / 25

The number of amino acids in human growth hormone is :

A) 91

B) 151

C) 191

D) 291

19 / 25

All mammalian steroid hormones are formed from :

A) Purine

B) Pyrimidine

C) Cholesterol

D) Pyrrole

20 / 25

Hyperglycemic effect of glucocorticoids is due to :

A) Inactivation of protein phosphatase

B) Inactivation of fructose 1,6-biphosphatase

C) Stimulation of synthesis of pyruvate carboxylase

D) Stimulation of synthesis of eltroxykinase

21 / 25

A hormone secreted from anterior pituitary is :

A) Growth hormone

B) Vasopressin

C) Oxytocin

D) Epinephrine

22 / 25

Acromegaly results due to excessive release of :

A) Thyroxine

B) Growth hormone

C) Insulin

D) Glucagon

23 / 25

Aldosterone synthesis occurs in :

A) Zona reticularis

B) Zona fasciculata

C) Zona glomerulosa

D) Chromaffian cells

24 / 25

Biological activity of ACTH requires :

A) 10-N-terminal amino acid

B) 24-N-terminal amino acid

C) 24-C-terminal amino acid

D) 15-C-terminal amino acid

25 / 25

A very efficient inhibitor of steroid biosynthesis is :

A) Aminoglutethimide

B) Aminoimidazole

C) Aminoimidazolesuccinyl carboxamine

D) Aminopterin

Your score is

The average score is 0%

Hormones Questions Set 1

Hormones Questions Set 1

Follow Us on Social Media