Observe the following diagram.1. Identify A, B, C, D.

1.	Observe the following diagram.1. Identify A, B, C, D. 2. What is Sarcomere? 3. List out the changes takes place during muscle contraction to ABC and D.
Answer» 1. Identification A – Sarcomere B – Hzone C – Aband D – Iband 2. A sarcomere is the region between two adjacent Z line. It is formed of a complete A band in the middle and halves of two I bands present on either side. 3. The changes takes place during muscle contraction to ABC and D: A – Two Z lines of the sarcomere come close together resulting in the shortening of the sarcomere. B – H – Zone completely disappears. C – No change in the length of A band D – I – band get reduced

Observe the following diagram.1. Identify A, B, C, D. 2. What is Sarcomere? 3. List out the changes takes place during muscle contraction to ABC and D.

Answer»

1. Identification

A – Sarcomere
B – Hzone
C – Aband
D – Iband

2. A sarcomere is the region between two adjacent Z line. It is formed of a complete A band in the middle and halves of two I bands present on either side.

3. The changes takes place during muscle contraction to ABC and D:

A – Two Z lines of the sarcomere come close together resulting in the shortening of the sarcomere.
B – H – Zone completely disappears.
C – No change in the length of A band
D – I – band get reduced

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Observe the following diagram.​​​​​1. Identify A, B, C, D. 2. What is Sarcomere? 3. List out the changes takes place during muscle contraction to ABC and D.

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Observe the following diagram.1. Identify A, B, C, D. 2. What is Sarcomere? 3. List out the changes takes place during muscle contraction to ABC and D.