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lawyer [7]
3 years ago
11

The cross bridge cycle starts when _________.

Biology
1 answer:
docker41 [41]3 years ago
6 0
The cross bridge cycle starts when myosin attaches to actin in a muscle cell. The process involves the initial loading of myosin with potential energy, allowing it to bind to actin. Once myosin binds, potential energy is released and the myosin's head shape changes, causing the filament to be pulled to the sacromere. This is known as the working stroke in muscular contraction.
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List in order the various fluid compartments that a glucose molecule would encounter beginning with absorption from the lumen of
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Answer:

The correct list of compartments glucose enter is :

The lumen > plasma (extracellular fluid) > interstitial fluid (extracellular fluid) >   the skeletal muscle cell (intracellular fluid)

Explanation:

The glucose molecule would start from the lumen of the intestine where is absorbed. The glucose enters the plasma a part of the circulatory system known as extracellular fluid.

The glucose also encounters another type of extracellular fluid the interstitial fluid that is not in the circulatory system. At the last glucose as it is entering the skeletal muscle cell the last fluid compartment, which is intracellular fluid. This fluid is inside the cells.

3 0
3 years ago
Help me help me ..........
elena-14-01-66 [18.8K]

Answer:

D

Explanation:

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For giving you understanding ; we need Free O2 but Oxygen is also available in H20 right why dont we use it !!

As the early atmosphere was reducing as there was no free oxygen but it was later produced by chemoautotrophic bacteria !! Living thing release O2 in atmosphere thus making it oxidising in nature and then life evolves !!
4 0
3 years ago
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Climate covers smaller or larger areas than weather
Anvisha [2.4K]

nope

Explanation:

Climate covers larger areas than weather

trust me that's the correct answer

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