Answer:
<u>ion channels</u>
Explanation:
The plasma membrane plays a critical role in regulating and maintaining ionic potential inside the cell, relative to ionic concentration present outside the cell. The ion channels are specific, in that they only recognize and allow particular ions to pass through and block the rest. Their opening and closing depends on the ionic potential during that time period.
Answer:
transcription and RNA processing
Explanation:
It is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.
I’m not too sure what you mean by “aneorobic environment” but alcohol is produced by alcoholic fermentation. Lactic acid is produced in lactic acid fermentation, but they both start off with glycolysis because the whole point of fermentation is basically to produce oxygen when your body can’t inhale enough.
The answer is D.) all cell are composed of a membrane...