3A Plasma Membrane

Question 1

Plasma membrane contains of…

Answer 1

phospholipid bilayer embedded with proteins, carbohydrates, and cholesterol

Question 2

Protein function in plasma membrane

Answer 2

transport, speeds up chemical reactions, cell communication, and sticks to other cells

Question 3

Carbohydrate function in plasma membrane

Answer 3

Aids with cell to cell communication

Question 4

Cholesterol function in plasma membrane

Answer 4

regulates fluidity of the membrane

Question 5

Why is the plasma membrane considered a fluid mosaic model?

Answer 5

Phospholipids are always moving. Proteins and carbohydrates embedded in the membrane can move around the bilayer.

Question 6

Hydrophobic means…

Answer 6

Non-polar, hates water

Question 7

Hydrophilic means…

Answer 7

Polar, attracted to water

Question 8

Integral protein

Answer 8

permanent part of membrane

Question 9

Transmembrane protein

Answer 9

spans entire bilayers

Question 10

Peripheral protein

Answer 10

temporarily attached to membrane