and Answers (2026) (Verified Answers)
1. Glycerol contains how many alcohol functional groups? a. 1
b. 2
c. 3
d. 4
e. none of the above :Answer c. 3
2. Which of the following are derived from or made from fatty acids?
a. cholesterol
b. carotenoids
c. phosphoglyceries
d. Both a and b
e. Both a and c :Answer c. phosphoglycerides
3. Triacylglycerols are made from?
a. a glycerol backbone
b. three fatty acids
c. amide linkage between fatty acids
d. glycerol backbone and three fatty acids
e. All of the above :Answer d. glycerol backbone with three fatty acids
4. What would a fatty acid that is saturated look like? :Answer There would be no
double bonds 5. A _______ is a carboxylic acid that is a structural component of lipids?
a. Amino acids
b. carotenoid
c. sphingolipids
d. cholesterol
e. none of the above :Answer e. none of the above
6. A particular lipid is a liquid at room temperature, so it is called a(n) ____________ a.
oil
b. fat
c. lipid
, d. membrane
e. sphingolipid :Answer a. oil
7. Identify the lipid class given by the structural formula :Answer
two fatty acids with a choline and phospheric group (polar head) a. phosphoglyceride
b. sphingolipid
c. cholesterol
d. triacylglycerol
e. none of the above :Answer a. phosphoglyceride
8. ______ are a class of membrane proteins that are firmly associated with the
membrane bilayer.
a. peripheral protein
b. integral protein
c. channel protein
d. transport protein
d. inner transmembrane protein :Answer b. integral protein
9. Isoprene units are used to make _________________.
a. cholesterol
b. carotenoid molecules
c. vitamin K
d. Both A and C
e. all of the above :Answer e. all of the above
10. Which notation is for a fatty acid with two double bonds? a. 18 :Answer1 (delta 9,13)
b. 18 :Answer2 (delta 9,13)
c. 14 :Answer 1 (delta 9,13)
d. 2 :Answer18 (delta 9,13)
e. 14 :Answer1 :Answer2 (delta 9,13) :Answer b. 18 :Answer2 (delta 9,13)
11. Which notation indicates a 20-carbon omega-3 fatty acid that contains no other
double bonds? a. 20 :Answer1 (delta 11)
b. 20 :Answer1 (delta 18)
c. 20 :Answer1 (delta 17)
d. 20 :Answer1 (delta 3)
e. 20 :Answer3 (delta 3 omega) :Answer c. 20 :Answer1 (delta 17)
, 12. _____________ is used as the backbone molecule in the formation of storage fats.
a. ceramide
b. glucose
c. sphingolipid
d. glycerol
e. phosphoglycerol :Answer d. glycerol
13. Which types of membrane lipids determine the blood type of humans? a.
triacylglycerols
b. phosphoglycerides
c. cholesterol
d. fatty acids
d. sphingolipids :Answer d. sphingolipids
14. Sphingolipids are found in high concentration in the membranes of
__________________. a. organelles
b. myelin sheaths
c. all cells
d. heart cells
e. vitamin K lipids :Answer b. myelin sheaths
15. In a sphingolipid, the fatty acids are attached at carbon-1 by this type of linkage?
a. ceramid linkage
b. amid linkage
c. acyl linkage
d. ether linkage :Answer c. acyl linakge
16. In a sphingolipid, the fatty acids are attached at carbon-2 by this type of linkage?
a. amide linkage
b. an ether linkage
c. an alcohol linkage
d. a peptide linkage
e. alkyl linkage :Answer a. amide linkage
17. In a sphingolipid, the fatty acids are attached at carbon-3 by this type of linkage?
a. amide linkage
b. acyl linkage