Answer:
Here are all the correct answers:
1: protecting and enclosing the cell
2: giving cells their shapes
3: regulate what enters and what exits the cell
4: gets out metabolic reactions near the inner surface of the cell membrane - the cytosol does this, which resides in the cell membrane
I'm not exactly sure what you mean when you put this (see below) in the question, if you explain what you meant when you wrote that I will try to answer. Thanks
PHOSPHOLIPID BI-LAYER
HYDROPHOBIC
PHOSPHOROUS
FATTY ACIDS
CHYDROPHILIC
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