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Zoology - Locomotion and Movement Question with Solution | TestHub

ZoologyLocomotion and MovementLocomotionEasy2 minPYQ_2020
ZoologyEasysingle choice

Match the following and mark the correct option

 Column I Column II
(A)Fast muscle fibres(i)Myoglobin
(B)Slow muscle fibres(ii)Lactic acid
(C)Actin filament(iii)Contractile unit
(D)Sarcomere(iv)I-band

Options:

Answer:
C
Solution:

Red muscle fibres

1.These have higher myoglobin content, giving them reddish appearance.

2.These have plenty of mitochondria.

3.These muscles are also known as aerobic muscles because these utilises a large amount of oxygen stored in them for ATP production.

4.Amount of sarcoplasmic reticulum is low.

White muscle fibres

1.These have very less quantity of myoglobin, giving them whitish (or pale) appearance.

2.Number of mitochondria are very few.

3.These muscles are also known as anaerobic muscles as these depend on anaerobic process for energy.

4.Amount of sarcoplasmic reticulum is high.

Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Locomotion and MovementSubtopic:Locomotion
⏱ 2mℹ️ Source: PYQ_2020

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