Zoology-Muscle Contraction
NEET Zoology Muscle Contraction MCQ Question
Type: MCQ-numerical-Easy-Class 11
If a sarcomere in a muscle fibre shortens from 2.5 micrometers to 2.0 micrometers during contraction, by what percentage has the sarcomere length decreased?
A
20%
B
25%
C
15%
D
10%
Correct Answer
Option A
Detailed Explanation
The decrease in length is 0.5 micrometers. The percentage decrease is (0.5/2.5) * 100 = 20%. The NCERT context describes the sarcomere as the functional unit of contraction.
Found an issue with this question?