Regulation by the plasma membrane
Complete the following statements to explain how the plasma membrane functions within
cells. Choices may be used more than once.
1. The cell membrane is primarily composed of protein
2. This means that there are two
layer(s) of cholesterol
head points outward towards
3. In the outer layer of the membrane, the hydrophilic
the external environment.
4. In the inner layer of the membrane, the hydrophobic
the internal environment.
5. This means the protein
plasma membrane.
6. Molecules of cholesterol
and cholesterol molecules
of molecules.
7. Molecules like (proteins
molecules like cholesterol
head points inward towards
tails point toward each other in the center of the
are embedded within the membrane to give it fluidity,
are embedded within the membrane to aid in the transport
can move across membranes easily, but other
require energy to pass through.