U1AOS1 Plasma membrane

Question 1

What is the plasma membrane?

Answer 1

Made of phospholipids and protein and encloses the contents of a cell

Question 2

How are the lipids and proteins arranged?

Answer 2

the fluid mosaic model: arranged vertically.

Question 3

What is the phospholipid bilayer?

Answer 3

AKA plasma/cell membrane and is made of phospholipids.

Question 4

What does each phospholipid have?

Answer 4

A polar, hydrophilic, phosphate-containing head

Two non-polar, hydrophobic, fatty acid tails.

Question 5

Antibody protein

Answer 5

Important for immune system

Question 6

Channel protein

Answer 6

Selectively lets ions through the membrane

Question 7

Carrier proteins

Answer 7

Push things through the membrane in both directions

Question 8

Enzymes

Answer 8

Take one molecule and change it into a different molecule

Question 9

What do cytoskeleton fibres do?

Answer 9

Hold the cell in shape and are connected to proteins

Question 10

Peripheral protein

Answer 10

floating on the surface of the membrane

Question 11

Integral protein

Answer 11

Embedded in the fatty acid tail

Question 12

Transmembrane protein

Answer 12

Passes all the way through the membrane