Question

Read the following four statements (A-D). Find out the true (T) and false (F) statements :
(a) Catecholamines stimulate the breakdown of glycogen, resulting in an increased concentration of glucose in blood.

(b) Thymosin play a major role in the differentiation of T – lymphocytes which provide cell mediated immunity.

(c) Aldosterone stimulates the reabsorption of $K^{+}$ and phosphate ions and excretion of $N{a}^{+}$ and water.

(d) Insulin is a peptide hormone, which reduces the cellular glucose uptake and utilization.

• A. a – T, b – T, c – T, d - F
• B. a – T, b – T c – F, d – F
• C. a – F, b – T, c – F, d - T
• D. a-T, b – F, c – T, d - F

Answer 1

The correct option is B a – T, b – T c – F, d – F

(A) Catecholamines stimulate the breakdown of glycogen, resulting in an increased concentration of glucose in the blood-this is true as Catecholamines are produced by the adrenal gland and mainly two hormones - epinephrine and norepinephrine are respomsible for the breaks down of glucose, thus, increasing the glucose concentration in the blood.

(B) Thymosin plays a major role in the differentiation of T–lymphocytes, which provide cell-mediated immunity is true as thymosin is a protein that helps in the development of T- lymphocytes thus, providing cell-mediated immunity.

(C) Aldosterone stimulates the reabsorption of $K^{+}$ and phosphate ions and excretion of $N{a}^{+}$ and water is false as Aldosterone stimulates the reabsorption of sodium into the blood, and increases the excretion of potassium.

(D) Insulin is a peptide hormone, which reduces cellular glucose uptake, and utilization is false as Insulin is a peptide hormone but it enhances the glucose uptake thus, helping in reducing blood sugar.
So, the correct answer is- option b.