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Which of the following ions help in muscle contraction?
Options
(a) K⁺ and Mg⁺⁺
(b) Na⁺ and K⁺
(c) Ca⁺⁺ and Na⁺
(d) Ca⁺⁺ and Mg⁺⁺
Correct Answer:
Ca⁺⁺ and Mg⁺⁺
Explanation:
Ca²⁺ as well as Mg⁺⁺ help in muslce contraction. Actin and myosin get combined in presence of ATP and Ca²⁺ to form actomyosin to Myosin + Actin –ATP/Ca²⁺—> Actomysin Energy released by the oxidation of food in the form of ATP is broken down into ADP, phosphorus and energy in the presence of enzyme myosin ATPase, Ca²⁺ and Mg²⁺ions. ATP + H₂O —myosin ATPase/Ca²⁺,Mg²⁺—–> ADP + Pi+ Energy The energy is used up in the contraction of muscle.
Related Questions: - In plant tissue culture, which of the following shows totipotency?
- For its action, nitrogenase requires
- Actin filament is made up of
- In anaerobic respiration the pyruvic acid in muscle will form
- Which of the following is a part of endomembrane system of eukaryotic cell
Topics: Locomotion and Movement
(106)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In plant tissue culture, which of the following shows totipotency?
- For its action, nitrogenase requires
- Actin filament is made up of
- In anaerobic respiration the pyruvic acid in muscle will form
- Which of the following is a part of endomembrane system of eukaryotic cell
Topics: Locomotion and Movement (106)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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