Chemical Coordination and Integration Chapter-Wise Test 15

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which hormone is known as the "fight-or-flight" hormone?

Cortisol
Epinephrine
Insulin
Thyroxine
2

Epinephrine (Adrenaline), secreted by the adrenal medulla, prepares the body for emergency situations.

Which hormone plays a major role in regulating female reproductive functions?

Progesterone
Testosterone
Aldosterone
Epinephrine
1

Progesterone, secreted by the ovaries, regulates the menstrual cycle and supports pregnancy.

Which of the following statements about glucagon is correct?

Glucagon increases blood glucose levels.
Glucagon is secreted by the beta cells of the pancreas.
Glucagon promotes glucose uptake by cells.
Glucagon deficiency leads to diabetes mellitus.
1

Glucagon, secreted by the alpha cells of the pancreas, increases blood glucose levels by promoting glycogen breakdown.

Which hormone is secreted by the anterior pituitary and stimulates milk production?

Oxytocin
Prolactin
Estrogen
Progesterone
2

Prolactin, secreted by the anterior pituitary, stimulates milk production in the mammary glands after childbirth.

Which of the following statements about the thyroid gland is incorrect?

The thyroid gland secretes thyroxine and triiodothyronine.
Thyroid hormones regulate metabolism.
The thyroid gland is located in the abdominal cavity.
Iodine is essential for thyroid hormone synthesis.
3

The thyroid gland is located in the neck, not in the abdominal cavity.

Which hormone secreted by the adrenal cortex regulates glucose metabolism?

Aldosterone
Cortisol
Adrenaline
Noradrenaline
2

Cortisol is a glucocorticoid that regulates glucose metabolism by stimulating gluconeogenesis.

Which of the following statements about adrenaline is correct?

Adrenaline is secreted by the anterior pituitary.
Adrenaline increases heart rate and blood pressure.
Adrenaline decreases metabolic rate.
Adrenaline is primarily involved in long-term stress response.
2

Adrenaline, secreted by the adrenal medulla, increases heart rate and blood pressure as part of the "fight-or-flight" response.

Which of the following statements about the pituitary gland is incorrect?

The pituitary gland is located below the hypothalamus.
The anterior pituitary produces FSH and LH.
The posterior pituitary stores and releases hormones produced by the hypothalamus.
The pituitary gland directly secretes thyroxine.
4

The pituitary gland does not secrete thyroxine; thyroxine is secreted by the thyroid gland.

Which hormone is known as the "fight-or-flight" hormone?

Cortisol
Epinephrine
Insulin
Thyroxine
2

Epinephrine (Adrenaline), secreted by the adrenal medulla, is the "fight-or-flight" hormone that prepares the body for emergency situations.

Which hormone is involved in maintaining electrolyte balance by increasing sodium reabsorption?

Cortisol
Aldosterone
Vasopressin
Parathyroid hormone (PTH)
2

Aldosterone, a mineralocorticoid secreted by the adrenal cortex, increases sodium reabsorption in the kidneys.

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