pack 2- cell membrane structure

Question 1

function of a glycolipid

Answer 1

surface receptor
stabilise membranef

Question 2

function of a glycoprotein

Answer 2

stabilise membrane
receptor- hormones neurotransmitters

Question 3

function of a channel protein

Answer 3

span bilayer
control entry and removal of specific molecules

Question 4

function of cholesterol

Answer 4

disturb tight packaging
regulate membrane fluidity

Question 5

phospholipid bilayer

Answer 5

hydrophobic fatty acid tails face inwards
hydrophilic phosphate head face outwards
aqueous solution on both sides of cell- cytoplasm and tissue fluid

Question 6

fluid mosaic model

Answer 6

fluid-phospholipids move in the plane of the membrane
some proteins move through phospholipids
mosaic- random association of proteins, phospholipids, cholesterol within membrane.

Question 7

triglyceride vs phospholipid

Answer 7

similar- both contain glycerol and fatty acids
different- phospholipids contain a phosphate group
phospholipids have 2 fatty acids but triglycerides have 3 fatty acids