The correct answer is C
The plasma membrane is a structure that protects the cell and it's made out of a lipid bi-layer, sugars and proteins. The proteins of the plasma membrane have many functions, some of them are structural, some carry out the cell transport of important molecules and some of them help the cell reactions and are called membrane enzymes . Enzymes are proteins that are capable to speed up a chemical reaction acting as catalysts.
he proposed that the atom was mostly empty space . the electrons revolve in curcular orbits about the massive positive charge at the centre his model explained how most of the a particles passed straight through the foil .the small particle nucleus would deflect the few particles that came close ..
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Hey there!
The pistil of a flower is the female part of the plant. It is the female reproductive part of the flower. It consists of the ovary, a stalk, and the stigma.
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