Mix Test

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Mix Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following are peptide hormones?

A
Insulin and glucagon

B
Antidiuretic hormone and oxytocin

C
Cortisol and androgens

D
Epinephrine and serotonin

Solution

Antidiuretic hormone and oxytocin are peptide hormones as they are the hormones with peptide molecules.
Question 2
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Hormones are also called "chemical messengers". Which of the following statements about hormones is correct?

A
They have a very high molecular weight.

B
Body rarely synthesizes them and are mostly taken with food.

C
They speed up the reactions.

D
Their controlled reactions are not reversible.

Solution

This is the correct option as this statement about hormones is correct. Their controlled reactions are not reversible.
Question 3
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Thyroid gland is stimulated to secrete its hormones by TSH (Thyroid Stimulating Hormone), also known as Complete the above statement with the correct option out of the following given below.

A
Thyrotropin

B
Thyroxine

C
Tri-iodothyronine

D
Thyrocalcitonin

Solution

\Thyroid gland is stimulated to secrete its hormones by TSH (Thyroid Stimulating Hormone), also known as thyrotropin. It is secreted by the anterior lobe of pituitary gland.
Question 4
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Consider the following statements and choose the correct option.

a.C-cells of thyroid gland secrete thyrocalcitonin, which is a peptide containing 32 amino acids.
b.One of the functions of thyroxin and tri-iodothyronine is to increase actions of neurotransmitters like adrenaline and noradrenaline.

A
Both the statements are false .

B
Both the statements are true.

C
Statement 'a' is true and 'b' is false.

D
Statement 'b' is true and 'a' is false.

Solution

This is the correct option as both the statements are true. C-cells of thyroid gland secrete thyrocalcitonin, which is a peptide containing 32 amino acids. One of the functions of thyroxin and tri-iodothyronine is to increase actions of neurotransmitters like adrenaline and noradrenaline.

Question 5

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Match the following.

DISEASE	CAUSE
a. Cretinism	1. is caused by deficiency of thyroid hormone in adults
b. Gulls disease	2. is an autoimmune disease in which thyroid gland is destroyed by autoimmunity
c. Hashimoto's disease	3. is caused by deficiency of thyroid hormone in infants

a - 3, b - 1, c - 2

a - 3, b - 2, c - 1

a - 1, b - 3, c - 2

a - 2, b - 1, c - 3

Solution

Cretinism is caused by deficiency of thyroid hormone in infants. Gulls disease is caused by deficiency of thyroid hormone in adults. Hashimoto's disease is an autoimmune disease in which thyroid gland is destroyed by autoimmunity.

Question 6
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Which of the following is also called as hypocalcaemic tetany and causes lowering of calcium levels in blood?

A
Hyperparathyroidism

B
Parry's disease

C
Hypoparathyroidism

D
Goitre

Solution

Hypoparathyroidism is also called as hypocalcaemic tetany and causes lowering of calcium levels in blood.
Question 7
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Three zones subdivide adrenal cortex. Which of the following statements is/are correct?

a. Zona reticularis comprises about 15% of the gland, lies just below the capsule and is the outer zone.
b. Zona fasciculta is the inner zone and comprises about 7% of the gland.
c. Zona glomerulosa is the middle zone and comprises of 50% of the gland.

A
Only a and b

B
Only b and c

C
Only a and c

D
None of these

Solution

This is the correct option as none of these is the correct. Zona reticularis is the inner zone and comprises about 7% of the gland. The cells of this zone secrete gonadocorticoids. Zona fasciculta is the middle zone and comprises of 50% of the gland. Its cells secrete mainly glucocorticoids. Zona glomerulosa comprises about 15% of the gland, lies just below the capsule and is the outer zone. Its cells secrete mineralocorticoids.
Question 8
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Cholesterol synthesises hormones of adrenal cortex. Which of the following statements about aldosterone hormone is correct?

A
It regulates sodium content in the body and is the principal mineralocorticoid.

B
It stimulates liver to synthesise carbohydrates from amino acids and glycerol.

C
It develops male foetus and stimulates the development of male secondary sexual characters.

D
It maintains development of female secondary characters.

Solution

Aldosterone regulates sodium content in the body and is the principal mineralocorticoid. Sodium and water in the blood are increased by it.
Question 9
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Which of the following adrenal cortex diseases are caused by the deficiency of mineralocorticoids and glucocorticoids?

A
Cushing's syndrome

B
Addison's disease

C
Aldosteronism

D
Gynaecomastia

Solution

The deficiency of mineralocorticoids and glucocorticoids causes Addison's disease. Low blood sugar, nausea, vomiting etc. are its few symptoms.
Question 10
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The target cells of which of the following are the cells of skeletal, cardiac and smooth muscles, blood vessels and fat cells?

A
Adrenaline and noradrenaline

B
Gonadocorticoids

C
Glucocorticoids and mineralocorticoids

D
Mineralocorticoids and gonadocorticoids

Solution

The target cells of adrenaline and noradrenaline are the cells of skeletal, cardiac and smooth muscles, blood vessels and fat cells.
Question 11
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Which of the following endocrine glands develop from the endoderm of the embryo?

a. Thyroid gland
b.Parathyroid gland
c.Hypothalamus
d.Kidneys

A
Only a and c

B
Only c and d

C
Only a and d

D
Only a and b

Solution

Thyroid gland and parathyroid gland develop from the endoderm of the embryo. Thyroid gland is located anterior to the thyroid cartilage. Parathyroid gland is located on the posterior surface of the lobes of the thyroid gland.
Question 12
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Which of the following hormones synthesised by the cells of hypothalamus stimulates the anterior lobe of the pituitary gland to secrete somatotrophin?

A
Growth hormone-releasing hormone

B
Growth hormone-inhibitory hormone

C
Prolactin releasing hormone

D
MSH inhibitory hormone

Solution

Growth hormone-releasing hormone stimulates the anterior lobe of the pituitary gland to secrete somatotrophin.
Question 13
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Which of the following pituitary disorders is caused by excess of growth hormone after reaching adult size?

A
Simmond's disease

B
Acromegaly

C
Diabetes insipidus

D
High blood level of ADH

Solution

Acromegaly is caused by excess of growth hormone after reaching adult size. The bones of face, hands and feet increase disproportionately in this disease.
Question 14
1 / -0

The bone marrow is stimulated by which of the following hormones to increase the production of RBCs?

A
Calcitriol

B
Renin

C
Erythropoietin

D
Melatonin

Solution

The bone marrow is stimulated by erythropoietin hormones to increase the production of RBCs. This hormone is a circulating glycoprotein.
Question 15
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Somatostatin is secreted by the delta cells of Langerhans of pancreas. Which of the following is its primary function?

A
It inhibits pancreas to release pancreatic juice.

B
It inhibits glucagon and insulin secretion.

C
It accelerates the movement of intestinal villi.

D
It dilates the peripheral blood vessels of the small intestine.

Solution

Somatostatin is secreted by the delta cells of Langerhans of pancreas and inhibits glucagon and insulin secretion.

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SHARING IS CARING

Question 1

Insulin and glucagon

Antidiuretic hormone and oxytocin

Cortisol and androgens

Epinephrine and serotonin

Solution

Question 2

They have a very high molecular weight.

Body rarely synthesizes them and are mostly taken with food.

They speed up the reactions.

Their controlled reactions are not reversible.

Solution

Question 3

Thyrotropin

Thyroxine

Tri-iodothyronine

Thyrocalcitonin

Solution

Question 4

Both the statements are false .

Both the statements are true.

Statement 'a' is true and 'b' is false.

Statement 'b' is true and 'a' is false.

Solution

Question 5

a - 3, b - 1, c - 2

a - 3, b - 2, c - 1

a - 1, b - 3, c - 2

a - 2, b - 1, c - 3

Solution

Question 6

Hyperparathyroidism

Parry's disease

Hypoparathyroidism

Goitre

Solution

Question 7

Only a and b

Only b and c

Only a and c

None of these

Solution

Question 8

It regulates sodium content in the body and is the principal mineralocorticoid.

It stimulates liver to synthesise carbohydrates from amino acids and glycerol.

It develops male foetus and stimulates the development of male secondary sexual characters.

It maintains development of female secondary characters.

Solution

Question 9

Cushing's syndrome

Addison's disease

Aldosteronism

Gynaecomastia

Solution

Question 10

Adrenaline and noradrenaline

Gonadocorticoids

Glucocorticoids and mineralocorticoids

Mineralocorticoids and gonadocorticoids

Solution

Question 11

Only a and c

Only c and d

Only a and d

Only a and b

Solution

Question 12

Growth hormone-releasing hormone

Growth hormone-inhibitory hormone

Prolactin releasing hormone

MSH inhibitory hormone

Solution