lipids

Question 1

lipid functions

Answer 1

membrane structure, signaling. protein membrane anchors, protection against oxidation, energy storage, waterproofing and protection

Question 2

lipids that contain fatty acids can be further seperated into

Answer 2

storage lipuds and membrane lipids

Question 3

storage lipids are stored as

Answer 3

triglycerides

Question 4

membrane lipids are

Answer 4

phospholipids, glycolipids and archaebacterial ether lipid

Question 5

fatty acids are carboxylic acids with long chain ____ side groups

Answer 5

hydrocarbon

Question 6

no c-c double bond

Answer 6

saturated

Question 7

one c-c double bond

Answer 7

monounsaturated

Question 8

more than one c-c double bond

Answer 8

polyunsaturated

Question 9

most natural fatty acids are cis double bonds and are ____

Answer 9

unbranched

Question 10

delta x is the ___ of the double bonds counting from the carboxyl terminal

Answer 10

delta

Question 11

with ___ fatty acids you don’t start from carboxyl terminal

Answer 11

omega

Question 12

triacylglycerols are fatty acid triesters of ____

Answer 12

glycerol

Question 13

structural lipids have ___ head and ___ tails

Answer 13

polar and nonpolar

Question 14

organisms differ in membrane lipid __ group composition

Answer 14

head

Question 15

what is the head group substituent of phosphatidic acid (glycerophospholipid)

Answer 15

None

Question 16

what is the head group substituent of phosphatidylethanolamine (glycerophospholipid)

Answer 16

ethanolamine

Question 17

what is the head group substituent of phosphatidylcholine (glycerophospholipid)

Answer 17

choline

Question 18

what is the head group substituent of phosphatidylserine (glycerophospholipid)

Answer 18

serine

Question 19

phosphlipases hydrolyze phospholipids at

Answer 19

specific sites

Question 20

_____ is found in the myelin sheath around nerve cells

Answer 20

sphingomyelin

Question 21

ABO blood groups are determined in part by the ____ found in the head groups of glycosphingolipids

Answer 21

sugars

Question 22

steroid hormones are derived from ___ (always have ring structure)

Answer 22

cholesterol

Question 23

unsaturated fatty acids can pack ____ because the double kinks the structure (less stable)

Answer 23

tightly