The hormone that stimulates the thyroid gland to release T₃ and T₄ is: MCQ with Answer and Explanation

The hormone that stimulates the thyroid gland to release T₃ and T₄ is:
A. ACTH
B. TSH
C. FSH
D. LH
Answer: Option B
Solution (By JKSSB Mock Tests)
Thyroid-stimulating hormone (TSH) from the anterior pituitary binds to receptors on thyroid follicular cells, stimulating synthesis and release of thyroid hormones (T₃ and T₄). ACTH targets adrenal cortex.

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The primary energy carrier molecule in cells is:
A. NADH
B. Glucose
C. ATP
D. FADH₂

Correct Answer: Option C


Explanation:
Adenosine triphosphate (ATP) is the universal energy currency of the cell, storing energy in its high-energy phosphate bonds. Hydrolysis to ADP releases energy for cellular work. NADH and FADH₂ are electron carriers in respiration, ultimately used to produce ATP. Glucose is a fuel molecule, broken down to produce ATP. ATP is directly used in processes like muscle contraction and active transport.

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Question #2
The 'Hormone Galanin' is a neuropeptide widely distributed in the central nervous system and the gastrointestinal tract. Its functions include:
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Correct Answer: Option C


Explanation:
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The outermost extraembryonic membrane that contributes to the formation of the placenta is the:
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Correct Answer: Option D


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