Chemical Coordination and Integration Chapter-Wise Test 16

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which hormone helps maintain pregnancy by inhibiting uterine contractions?

Estrogen
Progesterone
Oxytocin
FSH
2

Progesterone prevents uterine contractions and helps maintain pregnancy.

Which hormone is responsible for regulating blood calcium levels by increasing calcium absorption?

Thyroxine
Calcitonin
Parathyroid Hormone (PTH)
Aldosterone
3

Parathyroid Hormone (PTH) increases calcium levels in the blood by stimulating calcium absorption in the intestines and resorption from bones.

Which hormone is secreted by the adrenal medulla during emergency situations?

Aldosterone
Adrenaline
Glucagon
Cortisol
2

Adrenaline (epinephrine) is secreted by the adrenal medulla in response to stress, increasing heart rate and alertness.

Which of the following is an incorrect function of cortisol?

Cortisol helps in stress response.
Cortisol promotes glucose production.
Cortisol decreases blood sugar levels.
Cortisol is secreted by the adrenal cortex.
3

Cortisol increases blood sugar levels by stimulating gluconeogenesis in the liver.

Which hormone is primarily responsible for increasing calcium absorption in the intestines?

Thyroxine
Parathyroid hormone (PTH)
Insulin
Cortisol
2

PTH, secreted by the parathyroid glands, increases calcium absorption from the intestines.

Which of the following statements about oxytocin is incorrect?

Oxytocin stimulates uterine contractions during childbirth.
Oxytocin promotes milk ejection from the mammary glands.
Oxytocin is secreted by the anterior pituitary.
Oxytocin strengthens emotional bonding.
3

Oxytocin is secreted by the posterior pituitary, not the anterior pituitary.

Which hormone regulates the reabsorption of sodium and water in the kidney?

Aldosterone
Vasopressin
Insulin
Thyroxine
1

Aldosterone, secreted by the adrenal cortex, promotes sodium and water retention to maintain blood pressure.

Which hormone deficiency results in Addison’s disease?

Insulin
Aldosterone
Cortisol
Both Aldosterone and Cortisol
4

Addison’s disease is caused by insufficient secretion of both aldosterone and cortisol by the adrenal cortex.

Which hormone is responsible for the regulation of carbohydrate, protein, and fat metabolism?

Insulin
Thyroxine
Cortisol
Aldosterone
3

Cortisol, secreted by the adrenal cortex, plays a crucial role in the metabolism of carbohydrates, proteins, and fats.

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

Testosterone
Estrogen
Aldosterone
Cortisol
2

Estrogen, secreted by the ovaries, regulates the female reproductive cycle and secondary sexual characteristics.

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