Chapter 8 Flashcards

1
Q

The plasma membrane of the cell exhibits what?

A

Selective permeability, that is, it allows some substances to cross it more easily than others.

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2
Q

What type of molecule is a phospholipid?

A

An amphipathic molecule, meaning it has both a hydrophilic (“water-loving”) region and a hydrophobic (“water-fearing”) region

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3
Q

True or False? most membrane proteins are amphipathic.

A

True

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4
Q

A membrane is held together mainly by what?

A

hydrophobic interactions which are much weaker than covalent bonds

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