Membrane Structure And Lipids

Question 1

What are the 2 essential fatty acids

Answer 1

Linoleic and linolenic

Question 2

Example of trans fatty acids are_______because they are produced from chemical hydrogenation of poly unsaturated oil to alter their physical properties

Answer 2

French fries

Question 3

Glycerol and fatty acids are connected through which kinds of bonds

Answer 3

Ester bonds

Question 4

Major membrane lipid types include

Answer 4

Glycerophospholipids

Sphingolipids

Cholesterol

Other lipids

Question 5

The best example of amphipathic lipids are______because they contain both polar and non-polar parts

Answer 5

Membrane lipids

Question 6

Glycerophospholipds structure includes

Answer 6

Glycerol backbone

2 fatty acids

Phosphate

Extra head group

Question 7

Headgroups associated with glycerolphospholipids include

Answer 7

Choline
Ethanolamine
Serine
Inositol

Question 8

The most common phospholipid is

Answer 8

PC (phospotidylcholine)

Question 9

The following phospholipid acts as a signal in apoptosis

Answer 9

Phosphotidyl serine (PS)

Question 10

Cardiolipin is a specialized lipid found in the

Answer 10

Mitochondrial inner membrane

Question 11

The role of cardiolipin is to make the mitochondrial inner membrane more

Answer 11

Impermeable to ions

Question 12

Plasmalogens differ than phospholipids in that they______________ as opposed to phospholipids having an ester linkage

Answer 12

Have ether linkages and a double bond

Question 13

Degradation of phospholipids are done by

Answer 13

Phospholipases

Question 14

Type A phospholipidlipases degrade phospholipids by

Answer 14

Cleaving fatty acids from the glycerol backbone

Question 15

Type B phospholipases degrade phospholipids by

Answer 15

Cleaving fatty acids at more than 1 position

Question 16

Type C phospholipases work by

Answer 16

Cleaving the head group between glycerol and the phosphate

Question 17

Type D phospholipases work by

Answer 17

Cleaving the head group,after the phosphate

Question 18

Sphingomyelin structure is based on________rather than glycerol

Answer 18

Serine

Question 19

What differentiates Sphingolipids from glycerophospholipids

Answer 19

Sphingolipids hydrocarbon chains are connected via amide bonds instead of ester bonds

Question 20

Glycosphingolipids are found on the _______membrane and serve a role in intercellular communication

Answer 20

Outer

Question 21

Glycol iPods are found on the________membrane and provide structural support to the belayer

Answer 21

Outer

Question 22

Detergents differ from other lipids in that they have

Answer 22

Higher head group size relative to,the tail

Question 23

Detergents are known for forming________which does not have a bilayer

Answer 23

Micelle

Question 24

Phosphotidylserine and phosphotidyl inositol are known for being located on the

Answer 24

Inner leaflet of the bilayer