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alexandr1967 [171]
3 years ago
9

Which process must occur for a muscle to be able to relax?

Biology
2 answers:
Anastasy [175]3 years ago
6 0
<h2>Answer:</h2>

<u>A. The concentration of calcium in the myofibril must decrease. </u>

<h2>Explanation:</h2>

Each time we move a muscle, it requires the joined activity of trillions of myosin engines. Our muscle cells use calcium particles to facilitate this monstrous atomic exertion. At the point when a muscle cell is given the sign to contract from its related nerves, it discharges a surge of calcium particles from an uncommon intracellular holder, the sarcoplasmic reticulum that encompasses the groups of actin and myosin fibers.

The calcium particles quickly spread and tie to Tropomyosin on the actin fibers. They move shape somewhat and enable myosin to tie and start moving up the fiber. These trillions of myosin engines will keep climbing, getting the muscle, until the calcium is evacuated.  

The calcium pump enables muscles to relax after this furious flood of calcium-instigated constriction. The siphon is found in the film of the sarcoplasmic reticulum.

AnnyKZ [126]3 years ago
6 0

Answer:

A - the concentration of calcium in the myofibril must decrease

Explanation:

Just took the test, got it right!

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Explanation: A complementary strand is not the same in base composition and sequence with the template strand. In DNA, anywhere adenine is found in the template strand, thymine is found in the complementary strand and anywhere cytosine is found in the template strand, guanine is found in the complementary strand. But in RNA, anywhere adenine occurs in the DNA template strand, uracil occurs in the mRNA strand, wherever thymine occurs in the DNA template strand, adenine occurs in the mRNA strand and wherever guanine occurs in the DNA template strand, cytosine occurs in the mRNA strand.

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