Bio 7.2

Bio 7.2

Multiple Choice

separates the interior of the cell from the outside environment, in ALL types of cells

• nucleus

• plasma membrane

• cytoplasm

• cell wall

Multiple Choice

selective permiability means it lets.....

• only some things through

• nothing through

• everything through

Multiple Choice

A phospholipid bilayer will have how many layers of molecules?

• 1

• 2

• 3

• 4

Multiple Choice

Hydrophobic means.....

• to repel from water

• to be attracted to water

• to spontaneously combust when it comes into contact with water

Multiple Choice

What else is involved in a phospholipid bilayer?

• Proteins

• Carbohydrates

• Cholesterol

• All of these

Multiple Choice

What do proteins do?

• transmit signals

• provide structure

• provide pathways

• all of these

Multiple Choice

If cholesterol prevents fatty acid tails from sticking together, which in the diagram cholesterol?

• A

• D

• E

• F

Multiple Choice

Carbohydrates help the cell identify chemical signals from the environment. Which in the diagram is carbohydrates?

• A

• C

• D

• F

Multiple Choice

What is the monomer of a lipid?

• monosaccharide
• nucleic acid
• fatty acid
• amino acid