Chemical Coordination and Integration Chapter-Wise Test 13

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which hormone is responsible for the stimulation of pancreatic enzyme secretion?

Gastrin
Cholecystokinin (CCK)
Secretin
Ghrelin
2

Cholecystokinin (CCK) stimulates the secretion of pancreatic enzymes, which aid in digestion.

Which hormone is secreted in response to low blood sugar levels?

Insulin
Glucagon
Thyroxine
ADH
2

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

Which hormone stimulates the growth and differentiation of T-lymphocytes?

Thymosin
Melatonin
Cortisol
Epinephrine
1

Thymosin, secreted by the thymus gland, promotes the development and differentiation of T-lymphocytes.

Which hormone helps in regulating blood pressure by promoting sodium retention?

Insulin
Aldosterone
Glucagon
Epinephrine
2

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

Which hormone is secreted by the hypothalamus to stimulate the release of gonadotropins?

Somatostatin
Gonadotropin-releasing hormone (GnRH)
Oxytocin
Melatonin
2

GnRH from the hypothalamus stimulates the anterior pituitary to release LH and FSH.

Which hormone secreted by the kidney plays a role in blood pressure regulation?

Erythropoietin
Renin
Aldosterone
Vasopressin
2

Renin is secreted by the kidney and plays a crucial role in regulating blood pressure by activating the renin-angiotensin-aldosterone system (RAAS).

Which hormone deficiency leads to cretinism in infants?

Insulin
Thyroxine
Glucagon
Cortisol
2

Deficiency of thyroxine (T4) during fetal development leads to cretinism, which causes mental retardation and stunted growth.

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

Calcitonin
Parathyroid hormone (PTH)
Thyroxine
Insulin
2

PTH, secreted by the parathyroid gland, increases calcium levels in the blood by promoting calcium absorption from bones and intestines.

Which of the following is an incorrect statement about parathyroid hormone (PTH)?

PTH increases blood calcium levels.
PTH is secreted by the thyroid gland.
PTH promotes calcium absorption from the intestine.
PTH secretion is stimulated by low blood calcium levels.
2

PTH is secreted by the parathyroid glands, not the thyroid gland.

Which of the following statements about parathyroid hormone (PTH) is correct?

PTH decreases blood calcium levels.
PTH increases calcium reabsorption in the kidneys.
PTH is secreted by the thyroid gland.
PTH inhibits calcium absorption from the intestine.
2

PTH increases blood calcium levels by promoting calcium reabsorption in the kidneys and absorption in the intestines.

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