According to the sliding filament theory, which of the following changes occur in a…
Biology · NEET · NTA Exams — Locomotion and Movement
According to the sliding filament theory, which of the following changes occur in a sarcomere during maximal muscle contraction?
I. The A band shortens.
II. The I band narrows or disappears.
III. The H zone becomes less distinct or vanishes.
IV. The Z lines move closer together.
V. The length of the thick (myosin) filaments decreases.
Choose the correct answer from the options given below:
- I, III and V only
- I, II and IV only
- III, IV and V only
- II, III and IV only
Answer
(D) II, III and IV only
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