Answer: to help in cell division in animals
Explanation:
Answer:
D
Explanation:
Hormones are bigger than the cell pores hence cannot pass through the cell membrane to influence biochemical processes. Therefore, hormones (such as glucagon and insulin) bind onto receptors on the cell membrane, then transmembrane proteins, such as the G-protein, change conformation activating the secondary messengers inside of the cell. Cyclic- AMP is a major secondary messenger significant in activating protein kinases.
The environment that will have a negative impact on both cells with a cell wall and cells without a cell wall is the hypertonic environment.
<h3>What is a cell wall?</h3>
A cell wall is defined as the flexible outer layer of the cell that provides protection for the cell from any physical or chemical stress.
A hypertonic fluid environment is the type of fluid that is highly concentrated than the cell.
Therefore, when a clear is placed in a hypertonic environment, through the process of osmosis, water moves out of the cell.
This affects also cells that do not possess cell wall.
Therefore, the environment that will have a negative impact on both cells with a cell wall and cells without a cell wall is the hypertonic environment.
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Thier are 37.2 trillion
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and is prevented in the absence of , which causes calcium to trigger contraction through a response with regulatory proteins.
and filaments of the fibrils glide into one another as a result of calcium diffusing in the cytoplasm, resulting in the of the complete muscle fiber. The SERCAs pump (Sarcoplasmic/endoplasmic reticulum calcium ATPase) actively pumps ions back into the sarcoplasmic reticulum when the action potential decays.
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