Bio7.1

Question 1

Are phospholipids abundant?

Answer 1

Yes

Question 2

What is a membrane?

Answer 2

A collage of different proteins, grouped together, embedded in the fluid matrix of the lipid bilayer

Question 3

__ determines most of the membrane’s specific functions

Answer 3

Proteins

Question 4

Peripheral proteins

Answer 4

Bond to surface of membrane

Question 5

Integral proteins

Answer 5

Penetrate hydrophobic core

Question 6

Integral proteins span over membrane

Answer 6

Transmembrane proteins

Question 7

The hydrophobias regions of integral proteins consists of one ore more stretches of what kind of amino acid?

Answer 7

Nonpolar

Question 8

What are integral proteins coiled into?

Answer 8

Alpha helices

Question 9

Name the six major functions of membrane proteins

Answer 9

Transportm enzme activitym cell-cell recognition, intercellualr joiinign, attatchemtn to cyctoskeleton and extracellular matrix

Question 10

What do cells do when the recognize each other?

Answer 10

Bind to molecules on the extracellular surface of the plasma membrane