Cell membrane

All cells contain a cell membrane.

• True

• False

The main function of the cell membrane is to

• regulate what enters and exits the cell

• provide structure

• protect the cell

• make energy

Which type of macromolecule is the main component of the cell membrane?

• carbohydrate

• lipid

• protein

• nucleic acid

Select all that apply: In order to survive, cells need to be able to...

• Transport nutrients & oxygen

• Remove waste

• Maintain homeostasis (balance)

A lipid is

• polar

• nonpolar

• covalent

• ionic

Hydrophobic means

• water loving; attracted to water

• water hating; repels water

• water tolerant; does not like water but can tolerate it

• water solvent; water can dissolve it

Hydrophilic means

• water loving; attracted to water

• water hating; repels water

• water tolerant; does not like water but can tolerate it

• water solvent; water can dissolve it

Molecules that a nonpolar ____ water.

• attract

• repel

Select the TWO that apply: The monomers of a lipid are

• Glycerol

• Fatty acids

• Amino acids

• nucleotides

____ is in the head of the lipids.

• Glycerol

• Fatty acid