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Debora [2.8K]
3 years ago
7

Which organelle is the control center of a cell?

Biology
1 answer:
Zinaida [17]3 years ago
8 0
The Nucleus is the control center, or brain of the cell.
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When a calcium ion binds to troponin:
guapka [62]

Answer:

Option (A).

Explanation:

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The calcium ion is important for the muscle contraction. The binding of calcium with troponin causes the movement of tropomyosin out of the grooves between the actin molecules during muscle contraction.

Thus, the correct answer is option (A).

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Answer:

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Explanation:

This is what i have hope it helps! :)

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