Question

Match the following:

List - I		List - II
A.	Intestine	I.	Thymosins
B.	Kidneys	II.	Natriuretic peptides
C.	Heart	III.	Erythropoietin
D.	Thymus	IV.	Gastrin and Cholecystokinin

• A. A-I, B-II, C-III, D-IV
• B. A-IV, B-III, C-II, D-I
• C. A-II, B-I, C-IV, D-III
• D. A-III, B-IV, C-I, D-II

Hint:

Kidneys produce erythropoietin, while the thymus gland secretes thymosins important for immunity.

Answer 1

The Correct Option is B

Concept: Different organs of the human body secrete specific hormones and chemical substances that regulate body functions.
• Intestine secretes digestive hormones such as gastrin and cholecystokinin.
• Kidneys produce erythropoietin, which stimulates red blood cell formation.
• Heart secretes natriuretic peptides that help regulate blood pressure.
• Thymus secretes thymosins involved in immune system development.

Step 1: Match each organ with its secretion.
\[ \begin{aligned} \text{Intestine} &\rightarrow \text{Gastrin and Cholecystokinin} \text{Kidneys} &\rightarrow \text{Erythropoietin} \text{Heart} &\rightarrow \text{Natriuretic peptides} \text{Thymus} &\rightarrow \text{Thymosins} \end{aligned} \]

Step 2: Write the correct matching sequence.
Thus, the correct matching is: \[ A-IV,\ B-III,\ C-II,\ D-I \] Hence, the correct answer is: \[ \boxed{(B)\ A\text{-}IV,\ B\text{-}III,\ C\text{-}II,\ D\text{-}I} \]