Question
Another type of lipid in the cell membrane is cholesterol (I) that makes the membrane
re fluid and adds to its flexibility. Embedded in the phospholipid bilayer are proteins that
• aid in diffusion and in cell recognition. Proteins called transport proteins (B) go all the way
ough the bilayer. Integral proteins, also known as membrane proteins (H), are found only on
side of the membrane. Large molecules like glucose utilize these channel proteins to help
e across cell membranes without the use of energy. Some membrane proteins, called
proteins (C), have carbohydrate chains (E) attached to help cells recognize each other and
ain molecules.
1. What is another name for the cell membrane? Generally speaking, identify the overall structure
of the cell membrane.
Diasma membrane
Answer
The cell membrane is also known as the plasma membrane and it is composed of a phospholipid bilayer with embedded proteins.