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Human Physiology

NEET level, single correct, medium

4 of 7

Question 4 of 7

According to the sliding filament theory, during muscle contraction, which band shortens?

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Answer: (C) I-band and H-zone

Actin filaments slide over myosin; A-band remains constant while I-band and central H-zone shorten.

NEET question paper PDF

The full paper for each year. Open it on this page or download it.

NEET 2025 question paper (Code 45)

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More Biology practice

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NEET Biology practice question on Human Physiology, with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.