Question

Identify the wrong statements
(A) Erythropoietin is produced by juxtaglomerular cells of the kidney
(B) Leydig cells produce Androgens
(C) Atrial Natriuretic factor, a peptide hormone is secreted by the seminiferous tubules of the testes
(D) Cholecystokinin is produced by gastrointestinal tract
(E) Gastrin acts on intestinal wall and helps in the production of pepsinogen
Choose the most appropriate answer from the options given below :

• (D) and (E) only
• (A) and (B) only
• (C) and (E) only
• (A) and (C) only

Answer 1

The Correct Option is C

Let’s examine each statement:
A. Erythropoietin production: Erythropoietin (EPO) is produced primarily by the kidneys, but by interstitial fibroblasts in the renal cortex near the proximal convoluted tubule.
B. Leydig cell function: Leydig cells in the testes are responsible for producing androgens, such as testosterone. This statement is correct.
C. Atrial Natriuretic factor secretion: Atrial Natriuretic Peptide (ANP) is secreted by the atria of the heart, not the seminiferous tubules of the testes (which produce sperm). This statement is incorrect.
D. Cholecystokinin production: Cholecystokinin (CCK) is a hormone produced by the cells of the duodenum (part of the gastrointestinal tract). This statement is correct.
E. Gastrin function: Gastrin is a hormone produced by the stomach lining that stimulates the secretion of gastric acid and pepsinogen (precursor to pepsin). However it acts on the parietal cells of the stomach, not the intestinal wall to promote pepsinogen secretion. This statement is incorrect.
Thus the correct answer is C, and E.