| ⇦ | 
| ⇨ |
If a muscle undergoes rapid contraction and relaxation the sarcoplasmic reticulum extension
Options
(a) Requires constant plugging in and out of Ca²⁺
(b) Rapid synthesis of myosin
(c) Do not require energy
(d) All of the above
Correct Answer:
Requires constant plugging in and out of Ca²⁺
Explanation:
Sarcoplasmic reticulum is specialized smooth endoplasmic reticulum of muscle cells which stores Ca⁺⁺ ions. During contraction phase of muscle, Ca⁺⁺ ions are released from sarcoplasmic lumen to sarcoplasm and during relaxation phase of muscle, Ca⁺⁺ ions are pumped back into lumen. Hence, if a muscle undergoes rapid contraction and relaxation it requires constant plugging in and out of Ca⁺⁺ ions from sarcoplasmic reticulum.
Related Questions: - Which one of the following plants is monoecious?
- In the leaves of C₄ plants, malic acid formation during CO₂ fixation occurs in the cells
- Sap wood is otherwise called
- Hinge joint occurs between
- Juicy part of litchi is an outgrowth of
Topics: Locomotion and Movement
(106)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following plants is monoecious?
- In the leaves of C₄ plants, malic acid formation during CO₂ fixation occurs in the cells
- Sap wood is otherwise called
- Hinge joint occurs between
- Juicy part of litchi is an outgrowth of
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