#adrenal cortex MCQ

Endocrinology

Cortisol constitutes approximately what percentage of total glucocorticoid activity?

Answer: D) 95%. For Endocrinology, once you lock onto the key mechanism or definition, 95% is the clear fit. If you restate the concept in your own words, 95% is the option that correctly names the structure, process, or principle asked for in Endocrinology. So 95% is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other. When you practise, cover the choices first, write 95% from memory, then reveal the letter — that habit builds real recall for Endocrinology.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Endocrinology

Glucocorticoids are secreted mainly in response to:

Pick B: ACTH. Thinking about Endocrinology in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the functional job described in the stem is exactly what ACTH does in Endocrinology. Hence ACTH is correct. Treat this as a building block for the rest of Endocrinology; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto ACTH.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Endocrinology

Aldosterone increases blood pressure mainly by:

Correct option is B, Increasing Na⁺ reabsorption. In Endocrinology, the accurate description is Increasing Na⁺ reabsorption, and that is what you should commit to memory. Keep the definition tight and the role clear — the functional job described in the stem is exactly what Increasing Na⁺ reabsorption does in Endocrinology. Then Increasing Na⁺ reabsorption is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Increasing Na⁺ reabsorption. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Endocrinology

Primary regulator of aldosterone secretion is:

Correct option is C, Renin–angiotensin system. In Endocrinology, the accurate description is Renin–angiotensin system, and that is what you should commit to memory. Keep the definition tight and the role clear — Renin–angiotensin system is the option that correctly names the structure, process, or principle asked for in Endocrinology. Then Renin–angiotensin system is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Renin–angiotensin system.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Endocrinology

Aldosterone synthesis occurs exclusively in zona glomerulosa due to presence of:

18-hydroxylase (C) is the right choice. This sits at the heart of Endocrinology: the wording points straight to what is happening in the tissue or organ system. A useful study habit is to ask what the structure or process is for: cause and effect line up with 18-hydroxylase — that is the mechanism or reason the stem is pointing to. That reasoning supports 18-hydroxylase. One solid sentence about why this works is enough for recall — you do not need a long essay for every MCQ. When you practise, cover the choices first, write 18-hydroxylase from memory, then reveal the letter — that habit builds real recall for Endocrinology.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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