The organ that produces the hormone thrombopoietin is the: MCQ with Answer and Explanation

The organ that produces the hormone thrombopoietin is the:
A. Liver
B. Spleen
C. Bone marrow
D. Kidney
Answer: Option A
Solution (By JKExamLibrary)
Thrombopoietin, which stimulates platelet production, is primarily produced by the liver and to some extent by the kidney. Erythropoietin is mainly from kidneys.

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Practice More Biology Questions

Question #1
The most common method of reproduction in bacteria is:
A. Fragmentation
B. Binary fission
C. Spore formation
D. Budding

Correct Answer: Option B


Explanation:
Binary fission is the primary and most common method of asexual reproduction in bacteria. In this process, the bacterial cell replicates its DNA and then divides into two identical daughter cells. Under optimal conditions, some bacteria can divide every 20 minutes. Bacteria can also exchange genetic material through processes like conjugation, transformation, and transduction.

This question belongs to: Science Biology
Question #2
Bile juice is secreted by the:
A. Pancreas
B. Liver
C. Duodenum
D. Gall bladder

Correct Answer: Option B


Explanation:
Bile juice is continuously secreted by the liver. It is stored and concentrated in the gall bladder and released into the duodenum (first part of the small intestine) when food enters. Bile contains bile salts (like bilirubin and biliverdin) which are crucial for the emulsification of fats, breaking them into smaller micelles for easier digestion by lipases.

This question belongs to: Science Biology
Question #3
The condition characterized by a lack of melanin in skin, hair, and eyes is:
A. Erythema
B. Albinism
C. Vitiligo
D. Jaundice

Correct Answer: Option B


Explanation:
Albinism is a genetic disorder due to a defect in tyrosinase enzyme, leading to little or no melanin production, affecting skin, hair, and eye color. Vitiligo is patchy loss of melanocytes, jaundice is yellowing from bilirubin, erythema is redness. Albinism results in extreme sensitivity to sunlight.

This question belongs to: Science Biology