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makvit [3.9K]
2 years ago
14

What is the effect of an increased concentration of calcium ion in the sarcoplasm?

Biology
1 answer:
ICE Princess25 [194]2 years ago
6 0

Answer:

When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.

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