Answer:
Explanation:
The molecular and cellular mechanisms and processes that explain muscle contraction in striated muscle occur in the myofibril sarcomere. Their understanding depends on the organization's understanding of the structure of the sarcomere. In an imaginary experiment we first assemble an ideal sarcomere.
Remember that the myofibril is a set of cylindrical compartments that are located next to each other, constituting an elongated cylinder. Each of these cylinders is a sarcomere and borders its neighbor on a line or band called, line or band z.
On each side of the z line, thin cylindrical filaments that are actin filaments are inserted. Each actin filament is formed by a double strand of actin molecules that are rolled over each other. In this organization, actin is called actin F.
Answer:
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C
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Explanation:
1. Chloroplast is the green organelle in the plants in which photosynthesis occurs, through which plants made food autotrophically by photosynthesis.
2. Chemiosmosis: the mechanism in which the ions, such as H+ move across a membrane, ions moves down their electrochemical gradient.
3. The generation of adenosine triphosphate (ATP) by the transfer of H+ across a membrane during photosynthesis in which chemiosmosis translocates protons from the stroma to the thylakoid space.
I believe the correct answer is mantle. Let's hope this is right!
Answer:
Cell division is something that occurs when cells replicate. They go through a complicated process that split into 2 or more cells as a result.
The correct answer here is "cell membrane". Generally it makes sure that nothing enters or leaves the cell, except by its highly guarded "gates", such as ion channels, that let some particles through - but they're very picky about whom to let in!