CELL MEMBRANE

Question 1

name of cell membrane structure

Answer 1

phospholipid bilayer

Question 2

name the 7 main structures in the cell membrane

Answer 2

glycoprotein
glycolipid
cytoskeleton
integral protein
peripheral protein
cholesterol
protein channel

Question 3

glycolipid

Answer 3

contains sugar and lipids

responsible for cell recognition and signalling

Question 4

glycoprotein

Answer 4

contains sugar and protein

responsible for cell recognition and signalling

Question 5

phospholipid bilayer

Answer 5

the 2 layer structure that forms a cell membrane made up of hydrophobic fatty acid tails and hydrophilic heads.
this structure is amphiphilic

Question 6

non polar

Answer 6

doesn’t dissolve in water

Question 7

polar

Answer 7

dissolvable in water

Question 8

protein channel

Answer 8

allows transportation of amino acids into cell cytoplasm

Question 9

cholesterol

Answer 9

increases layers and ensures they don’t freeze at colder temps

Question 10

cytoskeleton

Answer 10

maintains cell shape and rigidity

Question 11

integral protein

Answer 11

changes shape and uses energy to allow active transport

often moves substances against concentration gradient

Question 12

peripheral protein

Answer 12

sits on sides of bilayer

enzymes and helps maintain cell shape by attaching to the cytoskeleton

Question 13

another (2) word for integral protein

Answer 13

transmembrane

carrier

Question 14

what is the main function of the cell membrane?

Answer 14

to regulate what substance enter and exit a cell

Question 15

main characteristic of cell membrane?

Answer 15

it is semi permeable

Question 16

example of function of glycoprotein

Answer 16

cell-cell recognition

many are considered antigenic - meaning they can attach to antibodies on the surface of white blood cells to enable recognition of ‘self’/normal cells