CELL BIO CH 10

Question 1

what are the properties of amphipathic lipids

Accepted Answer

contain nonpolar domain (hydrophobic tails) and hydrophillic head (polar domain)

Question 2

micelles, bilayers, and liposome ____________

Accepted Answer

allows them to associate with like environments

Question 3

Any portions of lipids that contains polar bonds are

Accepted Answer

hydrophillic

Question 4

what is phosphatidylethanolamine

Accepted Answer

major class of internal membrane lipid NH3

Question 5

what are phosphatidylserine

Accepted Answer

internal and negatively charged NH3+ COO-

Question 6

what is phosphatidylcholine

Accepted Answer

chichens foot major lipid two fatty acid tails external

Question 7

whag js sphingomyelin

Accepted Answer

external chicken foot w fatty chain

Question 8

what is cholestrols effect in membrane fluidity

Accepted Answer

makes lipids stiff

Question 9

what is saturated fatty acids role in mmebrane fluidity

Accepted Answer

less fluid

Question 10

what is lateral diffusion

Accepted Answer

movement within the plane of the leaflet

Question 11

what is flexion

Accepted Answer

the ability to flex and move

Question 12

what is rotation

Accepted Answer

lipids can rotate

Question 13

what is flip flop

Accepted Answer

lipids switch to

Question 14

why does assymetry matter

Accepted Answer

membrane change(presence of PS) cell sygnallimg (PI)

Question 15

what is a raft

Accepted Answer

rafts are formed in areas of greater fluidity and it attracts transmembrane protiens

Question 16

rafts are composed of

Accepted Answer

cholesteol, saturared hydrocarbons

Question 17

carbohydrate groups are always on the

Accepted Answer

noncystolic side

Toutes les cartes