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Home Q & A Board Biology-Related Homework Help Biochemistry
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nursing111 nursing111
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11 years ago
A-  The plasma membrane controls what substances go in and out of the cell  

B-  The plasma membrane is composed of two layers of phospholipids arranged in such a way that  their hydrophobic parts face outward  

C- Proteins, cholesterol, and glycoproteins are also part of the plasma membrane

D- Active transport uses energy to move molecules against their concentration gradient
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#1
11 years ago
B- The plasma membrane is composed of two layers of phospholipids arranged in such a way that their hydrophobic parts face outward - the hydrophobic parts face inwards.
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