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Smallest unit of muscle is
Options
(a) sarcomere
(b) sarcoplasm
(c) muscle fibril
(d) entire muscle
Correct Answer:
sarcomere
Explanation:
Sarcomere is the functional unit of myofibril. It is the part of myofibril between two successive Z-lines, which consists of two I-band halves, and an A-band between them. The region contains a bundle of two types of protein filaments, actin and myosin. Upon contraction, the actin filaments slide towards the centre of the myosin filaments, and overall sarcomere length get smaller.
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Topics: Locomotion and Movement
(106)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The most widely accepted theory of ascent of sap is
- How many female flowers occur in a cyathium?
- Which elements are essential for the photophosphorylation
- From a diploid condition of 2N, which condition can arise due to non-disjunction
- In humans aqueduct of sylvius is found in
Topics: Locomotion and Movement (106)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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