Free Chemical Coordination and Hormones MCQs with Answers

• A. Alpha-cells
• B. Beta-cells
• C. Delta-cells
• D. Gamma-cells

Explanation: Insulin is produced by Beta cells, which are found in the islets of Langerhans in the pancreas.

• A. Pituitary gland
• B. Adrenal gland
• C. Parathyroid
• D. Thyroid

Explanation: The pituitary gland, specifically through the release of antidiuretic hormone (ADH), plays a crucial role in managing the body's water…

• A. MSH
• B. LH
• C. ADH
• D. Melatonin

Explanation: Melatonin is a hormone involved in many biological and physiological regulations in the body.

• A. LH (Luteinizing Hormone)
• B. ACTH (Adrenocorticotropic Hormone)
• C. FSH (Follicle-Stimulating Hormone)
• D. ADH (Antidiuretic Hormone)

Explanation: Antidiuretic hormone (ADH) is a chemical produced in the brain that causes the kidneys to release less water, decreasing the amount of…

• A. Hyperthyroidism
• B. Hypocalcemia
• C. Hypochondria
• D. Hypercalcemia

Explanation: Exophthalmia, the abnormal protrusion of the eyes, is typically associated with Graves' disease, a form of hyperthyroidism.

• A. Parathormone (PTH)
• B. Calcitonin
• C. Thyroxine
• D. Both (a) & (b)

Explanation: The release of calcium from bone into the blood is controlled by parathyroid hormone (PTH).

• A. Cortisol
• B. Testosterone
• C. Insulin
• D. Aldosterone

Explanation: Insulin is a non-steroidal hormone, distinct from steroid hormones which are derived from cholesterol and are fat-soluble.

• A. Stretching of uterus
• B. Stretching of Cervix
• C. Low level of testosterone
• D. Low level of progesterone

Explanation: The correct answer is Option C: Low level of testosterone. Testosterone is a male sex hormone and does not influence the release of…

• A. Thyroid gland-T3 and T4
• B. Parathyroid gland-Calcitonin
• C. Pancreas-Insulin
• D. Gonads-Testes and ovaries

Explanation: The correct answer is Option B: 'Parathyroid gland-Calcitonin'. This is a mismatch because the parathyroid glands produce parathyroid…

• A. Thymus
• B. Pituitary
• C. Thyroid
• D. Pancreas

Explanation: The pancreas serves as both an endocrine and an exocrine gland. As an endocrine gland, it produces hormones like insulin and glucagon…

• A. Pancreas
• B. Gonads
• C. Adrenal gland
• D. Both (A) & (B)

Explanation: The gland that serves as both an exocrine and endocrine gland is the pancreas.

• A. Insulin
• B. Prolactin
• C. Lactogen
• D. Thyroxine

Explanation: Prolactin is the hormone responsible for milk secretion after parturition (childbirth).

• A. Growth hormone
• B. Follicle stimulating hormone
• C. Oxytocin
• D. Adrenocorticotropic hormone

Explanation: Oxytocin is not a hormone of the anterior pituitary. It is produced by the hypothalamus and released from the posterior pituitary gland.

• A. Pituitary gland
• B. Thyroid gland
• C. Parathyroid gland
• D. Adrenal gland

Explanation: Oxytocin is secreted by the pituitary gland. Specifically, it is produced by the hypothalamus and released from the posterior pituitary…

• A. Testosterone
• B. Progesterone
• C. Estrogen
• D. Thyroxin

Explanation: Estrogen is the hormone responsible for causing the mammary glands to enlarge at puberty.

• A. Adrenal
• B. Anterior pituitary
• C. Posterior pituitary
• D. Thyroid

Explanation: The anterior pituitary gland secretes the gonadotropic hormones, which include follicle-stimulating hormone (FSH) and luteinizing hormone…

• A. Estrogen
• B. FSH
• C. Prolactin
• D. Oxytocin

Explanation: The most important hormone in initiating and maintaining lactation after birth is prolactin.