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Veseljchak [2.6K]
3 years ago
9

Please help with this question ASAP

Biology
1 answer:
grigory [225]3 years ago
4 0

Answer:

D

Explanation:

because molecule A is only shown on the outside and is not exposed to the acidity on the inside of the cells

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3 years ago
after a power stroke, the myosin head must detach from acting before another powerstroke can occur. what causes
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The myosin head separates from actin as a result of ATP binding. The intrinsic ATPase activity of myosin then transforms ATP into ADP and Pi. The myosin head's angle is altered into a cocked state by the energy generated during ATP hydrolysis. The myosin head is now ready to move in the future.

The myosin protein is in a high-energy conformation when the head is cocked. At the end of the power stroke, the myosin head is in a low-energy position because this energy has been used up during the power stroke. ADP is released following the power stroke, but the cross-bridge is still there and actin and myosin are joined together.

Since ATP is readily available, the cross-bridge cycle can repeat, and muscular contraction can go on as long as ATP is there.

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6 0
1 year ago
Central nervous system depressants are also known as.
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3 0
2 years ago
How can I determine the population density of a sunflower field in square meters without counting every sunflower? Please descri
Oksana_A [137]

Answer:

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4 0
2 years ago
Which of these planets has water ice near its poles?
sergejj [24]

Answer:

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Explanation:

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