Chemical Coordination and Integration Chapter-Wise Test 12

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which disorder is caused by the hypersecretion of growth hormone (GH) in adults?

Gigantism
Cretinism
Acromegaly
Dwarfism
3

Acromegaly occurs in adults due to excess GH secretion, leading to enlargement of extremities and facial features.

Which of the following is an incorrect statement about testosterone?

Testosterone is secreted by the testes.
Testosterone promotes the development of male secondary sexual characteristics.
Testosterone is regulated by LH.
Testosterone is secreted by the adrenal cortex.
4

Testosterone is primarily secreted by the testes, not the adrenal cortex.

Which of the following statements about cortisol is correct?

Cortisol is secreted by the adrenal medulla.
Cortisol plays a role in metabolism and stress response.
Cortisol lowers blood glucose levels.
Cortisol is secreted by the pancreas.
2

Cortisol, secreted by the adrenal cortex, helps in stress response and increases blood glucose levels via gluconeogenesis.

Which hormone is primarily responsible for regulating water balance in the body?

Aldosterone
ADH (Vasopressin)
Insulin
Glucagon
2

ADH (Vasopressin), secreted by the posterior pituitary, promotes water reabsorption in the kidneys to regulate water balance.

Which hormone plays a role in female secondary sexual characteristics?

Testosterone
Progesterone
Estrogen
Oxytocin
3

Estrogen is responsible for the development of female secondary sexual characteristics.

Which of the following statements about the posterior pituitary is correct?

The posterior pituitary produces oxytocin and ADH.
The posterior pituitary stores and releases hormones produced by the hypothalamus.
The posterior pituitary secretes growth hormone.
The posterior pituitary is located in the adrenal gland.
2

The posterior pituitary does not synthesize hormones but stores and releases oxytocin and ADH, which are produced by the hypothalamus.

Which hormone helps regulate electrolyte balance and blood pressure by promoting sodium retention?

Cortisol
Aldosterone
Vasopressin
Parathyroid Hormone (PTH)
2

Aldosterone, secreted by the adrenal cortex, promotes sodium retention and helps regulate blood pressure.

Which hormone stimulates the contraction of the uterus during childbirth?

Progesterone
Oxytocin
Prolactin
Estrogen
2

Oxytocin, secreted by the posterior pituitary, stimulates uterine contractions during childbirth.

Which hormone is responsible for increasing glucose levels in the blood?

Insulin
Glucagon
Oxytocin
Thyroxine
2

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

Which hormone is secreted by the pineal gland and regulates the sleep-wake cycle?

Melatonin
Oxytocin
Prolactin
Vasopressin
1

Melatonin, secreted by the pineal gland, regulates the circadian rhythm, including sleep-wake cycles.

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