| ⇦ | 
| ⇨ |
Structural and functional unit of contractile apparatus in striated muscle is called
Options
(a) cross bridge
(b) myofibril
(c) Z-band
(d) sarcomere
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: - A small aquatic herb in which a portion of leaf forms a tiny sac or bladder
- Shape of plant chloroplast is
- An element playing important role in nitrogen fixation is:
- The development of a sporophyte from gametophytic tissue is called
- An important characteristic that Hemichordates share with Chordates is
Topics: Locomotion and Movement
(106)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A small aquatic herb in which a portion of leaf forms a tiny sac or bladder
- Shape of plant chloroplast is
- An element playing important role in nitrogen fixation is:
- The development of a sporophyte from gametophytic tissue is called
- An important characteristic that Hemichordates share with Chordates is
Topics: Locomotion and Movement (106)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply