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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.
Related Questions: - Most of the water, in mature plant cells, occurs chiefly in which of the following?
- The peritubular capillaries of the nephron arise from the
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Topics: Locomotion and Movement
(106)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Most of the water, in mature plant cells, occurs chiefly in which of the following?
- The peritubular capillaries of the nephron arise from the
- In which one of the following processes CO2 is not released?
- Cells of epithelial tissue on a basement membrane which is madeup of
- Which one of the following pairs, is not correctly matched?
Topics: Locomotion and Movement (106)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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