Biochemistry examination test
bank questions and answers
1. selective permeability - Correct Answer transport system confer this important
property on membranes
2. 16 or 18 - Correct Answer how many carbons is most common in fatty acids
3. cholesterol - Correct Answer in addition to phospholipids and glycolipids, this is
a major type of membrane lipid
4. amphipathic - Correct Answer a term applied to molecules that have both
hydrophobic and hydrophilic tendencies is ___
5. acetylsalicylic acid (aspirin) - Correct Answer substance that inhibits
prostaglandin H2 synthase 1 by blocking the channel through which the substrate
arachidonate travels
6. periplasm - Correct Answer this is the region between the cell wall and cell
membrane of prokaryotes
7. hydropathy - Correct Answer a procedure used to determine the probabilty that
a segment of a protein will be found in a membrane
8. lateral diffusion - Correct Answer this is the process by which lipids and proteins
move in the membrane bilayer
9. glycolipids - Correct Answer these membrane components contain
carbohydrates
10.lipid raft - Correct Answer this is a complex between cholesterol and membrane
phosholipids
11.cerebroside - Correct Answer ___ is a membrane lipid composed of
sphingosine, fatty acid, and simple sugar
12.palmetic acid - Correct Answer the common name of hexacanoic acid is ___
13.ester - Correct Answer in phosphoglycerides, the fatty acids are linked to the
glycerol backbone by the __ linkages
