Question

cell membrane structure
read each of the statements below and choose the appropriate vocabulary term on the right.

1. ____ this molecule is attached to phospholipids or proteins and is used for cell identification
2. ____ the term used to describe the flexible and varied model of the cell membrane.
3. ____ the main component of the cell membrane.
4. ____ the cell membrane helps to maintain these stable internal conditions of the cell.
5. ____ the term used to describe the two layers of phospholipids in the cell membrane.
6. ____ this molecule is found in the hydrophobic part of the membrane and regulates fluidity.
7. ____ this structure surrounding all cells that regulates what enters and leaves cells.
8. ____ this molecule is found throughout the membrane and one of its functions is to transport substances in and out of the cell.

vocabulary
a. bilayer
b. carbohydrates
c. cell membrane
d. cholesterol
e. fluid mosaic
f. homeostasis
g. phospholipids
h. proteins

Explanation:

1. Carbohydrates are attached to phospholipids or proteins for cell - identification.
2. The fluid mosaic model describes the flexible and varied cell membrane.
3. Phospholipids are the main component of the cell membrane.
4. The cell membrane helps maintain homeostasis (stable internal conditions).
5. Bilayer refers to the two - layer structure of phospholipids in the cell membrane.
6. Cholesterol is in the hydrophobic part of the membrane and regulates fluidity.
7. The cell membrane surrounds all cells and regulates what enters and leaves.
8. Proteins are throughout the membrane and can transport substances.

Answer:

1. B. carbohydrates
2. E. fluid mosaic
3. G. phospholipids
4. F. homeostasis
5. A. bilayer
6. D. cholesterol
7. C. cell membrane
8. H. proteins