#human physiology practice question

Thermoregulation

Afferent sensing in thermoregulation mainly involves:

Pick B: Temperature receptors sending signals. Thinking about Thermoregulation 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 Temperature receptors sending signals does in Thermoregulation. Hence Temperature receptors sending signals is correct. Treat this as a building block for the rest of Thermoregulation; 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 Temperature receptors sending signals.

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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Excretory System

Approximate number of nephrons per kidney is:

Go with C — 1–1.5 million. Within Excretory System, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, 1–1.5 million is the option that correctly names the structure, process, or principle asked for in Excretory System. Holding that picture in mind makes 1–1.5 million feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by 1–1.5 million.

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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Excretory System

Urine from papillary ducts first enters the:

Correct option is C, Minor calyx. In Excretory System, the accurate description is Minor calyx, and that is what you should commit to memory. Keep the definition tight and the role clear — Minor calyx is the option that correctly names the structure, process, or principle asked for in Excretory System. Then Minor calyx 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 Minor calyx. 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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Excretory System

Concentrated urine is produced mainly due to action of:

ADH (C) is the right choice. This sits at the heart of Excretory System: 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: the functional job described in the stem is exactly what ADH does in Excretory System. That reasoning supports ADH. 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 ADH from memory, then reveal the letter — that habit builds real recall for Excretory 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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Digestive System

Most nutrients absorbed from intestine reach liver via:

The correct answer is C: Hepatic portal vein. In Digestive System, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Hepatic portal vein is the option that correctly names the structure, process, or principle asked for in Digestive System. That is why Hepatic portal vein is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. 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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Digestive System

Segmentation movements in small intestine mainly help in:

Answer: B) Mixing chyme with enzymes. For Digestive System, once you lock onto the key mechanism or definition, Mixing chyme with enzymes is the clear fit. If you restate the concept in your own words, the functional job described in the stem is exactly what Mixing chyme with enzymes does in Digestive System. So Mixing chyme with enzymes 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.

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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Digestive System

Paneth cells are mainly involved in:

Antimicrobial defense (C) is the right choice. This sits at the heart of Digestive System: 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: the functional job described in the stem is exactly what Antimicrobial defense does in Digestive System. That reasoning supports Antimicrobial defense. 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 Antimicrobial defense from memory, then reveal the letter — that habit builds real recall for Digestive 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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Digestive System

Lacteals present in villi mainly absorb:

Pick C: Fatty acids. Thinking about Digestive System 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 Fatty acids does in Digestive System. Hence Fatty acids is correct. Treat this as a building block for the rest of Digestive System; 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 Fatty acids.

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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Digestive System

Finger-like projections that increase absorptive surface are called:

Pick B: Villi. Thinking about Digestive System 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: this is mainly a definition check, and Villi is the standard term or meaning used in Digestive System. Hence Villi is correct. Treat this as a building block for the rest of Digestive System; 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 Villi.

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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