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.
9. what type of molecule is depicted on the right? label the parts.
10. what are the 4 components of the cell membrane? (label them in the image below.)

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

Explanation:

1. Carbohydrates attach 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 maintains homeostasis.
5. A 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 regulates what enters and leaves cells.
8. Proteins are found throughout the membrane and transport substances.
9. The depicted molecule is a phospholipid with a hydrophilic head and hydrophobic tails.
10. The four components of the cell membrane are phospholipids, proteins, cholesterol, and carbohydrates.

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
9. Phospholipid; Label: Hydrophilic head and hydrophobic tails
10. Phospholipids, Proteins, Cholesterol, Carbohydrates