How do the small molecules of oxygen and carbon dioxide move through the cell membrane?

1 answer:

7 0

Small molecules are able to pass through a cell membrane because the membrane itself is semipermeable. Larger molecules require the cell expend energy to transport the molecules across the cell membrane, usually by engulfing them.

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Because different genes are switched on and off in each type of cell.

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Organelles make up the subunits of a cell. There are numerous each with their own function.

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A mirror like copy of the gene is made of RNA

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