According to the sliding filament theory:
1. Actin and myosin filaments slide over each other to increase the length of the sarcomere.
2. Length of A–band does not change.
3. I–band increases in length
4. The actin filaments slide away from A–band resulting in shortening of sarcomere
Subtopic:  Sliding Filament Theory |
 74%
From NCERT
NEET - 2022
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During muscular contraction which of the following events occur?

(a) 'H' zone disappears
(b) 'A' band widens
(c) 'I' band reduces in width
(d) Myosin hydrolyzes ATP, releasing the ADP and Pi
(e) Z-lines attached to actins are pulled inwards

Choose the correct answer from the options given below:

1. (b), (c), (d), (e) only

2. (b), (d), (e), (a) only

3. (a), (c), (d), (e) only

4. (a), (b), (c), (d) only

Subtopic:  Sliding Filament Theory |
 79%
From NCERT
NEET - 2021
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh