MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Locomotion and Movement

During a musc...

Question

During a muscle contraction, which of the following shortens?

A

Sarcomeres

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

A bands

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Actin and myosin filaments

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

All of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Sarcomeres

During contraction, the ends of the sarcomeres are pulled closer together, thus shortening the length of the muscle fiber.

Suggest Corrections

thumbs-up

2

Similar questions

Q. During muscle contraction, which of the following shortens?
(i) A band
(ii) I band
(iii) Sarcomere

Q. Select true or false
i. Shortening of sarcomere occurs when Z lines attached to actin filaments are pushed outwards.
ii. During contraction, I bands retain their lengths.
iii. During contraction, A bands get reduced in length.

Q. Assess the statements.
1. A-bands of the muscle is dark and contain myosin.
2. I-bands are the light bands and contain actin.
3. During muscle contraction the A-band contracts.
4. The part between the two Z-lines is called as sarcomere.
5. The central part of thick filament, not overlapped by thin filament, called H-zone.
Of the above statements.

Q. During muscle contraction, actin and myosin form:

Q. Identify the correct statements.

1. A-bands are dark and contain myosin.
2. I-bands are light and contain actin.
3. During the action, A band contracts.
4. The part between two Z-lines is sarcomere.
5. The central part of thin filament, not overlapped by thick filament is the H-zone.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Introduction

BIOLOGY

Watch in App

explore_more_icon

Explore more

Locomotion and Movement

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon