Answer:
The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage.
Explanation:
Answer:
a chromosome is a cell structure made of DNA,which is found in the nucleus of a cell.
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singular= granum or the plural is grana.
