#eye physiology MCQ

Sensory System Eye Physiology

Night blindness is commonly caused by deficiency of:

Answer: D) Vitamin A. For Sensory System Eye Physiology, once you lock onto the key mechanism or definition, Vitamin A is the clear fit. If you restate the concept in your own words, cause and effect line up with Vitamin A — that is the mechanism or reason the stem is pointing to. So Vitamin A 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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Sensory System Eye Physiology

Enzyme present in tears with bactericidal action is:

The correct answer is B: Lysozyme. In Sensory System Eye Physiology, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, location matters here: Lysozyme is the structure or site that matches the description. That is why Lysozyme 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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Sensory System Eye Physiology

Presbyopia occurs due to reduced flexibility of:

Pick C: Lens. Thinking about Sensory System Eye Physiology 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: cause and effect line up with Lens — that is the mechanism or reason the stem is pointing to. Hence Lens is correct. Treat this as a building block for the rest of Sensory System Eye Physiology; 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.

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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Sensory System Eye Physiology

Melanopsin is found in which retinal cell type?

Pick C: Ganglion cell. Thinking about Sensory System Eye Physiology 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: location matters here: Ganglion cell is the structure or site that matches the description. Hence Ganglion cell is correct. Treat this as a building block for the rest of Sensory System Eye Physiology; 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 Ganglion cell.

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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