Complete Solutions
Which of the following best describes a triglyceride?
A) A lipid composed of two fatty acids, glycerol, and a phosphate group
B) A lipid composed of three fatty acids and a glycerol molecule
C) A lipid composed of a single fatty acid and a cholesterol molecule
D) A lipid composed of fatty acids and sphingosine
Which of the following processes best describes the breakdown of triglycerides
into fatty acids and glycerol?
A) Esterification
B) Hydrolysis
C) Phosphorylation
D) Deamination
Which of the following components is part of the structure of a phospholipid?
A) Three fatty acid chains and a phosphate group
B) Two fatty acid chains, a phosphate group, and alcohol
C) One fatty acid chain and a glycerol backbone
D) Fatty acids and a cholesterol backbone
Which of the following lipids plays a major role in the formation of myelin sheaths
in neurons?
A. Cholesterol
B. Triglycerides
C. Sphingolipids
D. Phosphatidylcholine
In clinical diagnostics, elevated levels of which lipid are most strongly associated
with atherosclerosis?
A. HDL cholesterol
B. Phospholipids
C. LDL cholesterol
D. Triglycerides
, Lipids are essential in the body for all of the following EXCEPT:
A. Cell membrane structure
B. Hormone synthesis
C. Long-term energy storage
D. Enzyme catalysis
Which of the following is classified as a simple lipid?
A. Triglyceride
B. Phospholipid
C. Cholesterol
D. Sphingolipid
Compound lipids are characterized by the presence of:
A. Only carbon and hydrogen
B. Additional groups such as phosphate or carbohydrate
C. Single fatty acid chains only
D. Sterol ring
Which of the following best describes derived lipids?
A. Lipids that are hydrolyzed into fatty acids and alcohol
B. Lipids that contain nitrogen groups
C. Lipids obtained by hydrolysis of simple and compound lipids
D. Lipids that contain multiple double bonds
A lipid consisting of glycerol and three fatty acids is best classified as a:
A. Compound lipid
B. Derived lipid
C. Simple lipid
D. Steroid
Which of the following best describes saturated fatty acids?
A. Contain one or more double bonds
B. Have only single bonds between carbon atoms
C. Are liquid at room temperature
D. Are always essential in the human diet
Linoleic acid is an example of a:
A. Saturated fatty acid