Which subclassification of lipids would include cholesterol and its derivatives?
eicosanoids
fat soluble vitamins
phospholipids
fats
steroids
The Correct Answer is E
A. eicosanoids: Eicosanoids (like prostaglandins) are derived from arachidonic acid, not cholesterol.
B. fat soluble vitamins: These are vitamins A, D, E, and K, which are lipids but are not cholesterol-based structures.
C. phospholipids: Phospholipids have a glycerol backbone, fatty acids, and a phosphate group, not a steroid ring structure.
D. fats: Fats (triglycerides) are made of glycerol + three fatty acids, not cholesterol.
E. steroids: Steroids include cholesterol, testosterone, estrogen, and other hormones with a four-ring carbon backbone.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. hydrochloric acid (HCl): This is an inorganic acid, lacks carbon-hydrogen bonds.
B. salt (NaCl): Inorganic ionic compound, no carbon present.
C. sucrose (C₁₂H₂₂O₁₁): Sucrose is a carbohydrate (disaccharide), which contains carbon, hydrogen, and oxygen-hallmarks of organic compounds.
D. water (H₂O): Water is essential but inorganic-it contains no carbon.
Correct Answer is B
Explanation
A. homozygous recessive: That would be written as ww - both alleles being recessive.
B. homozygous dominant: WW means both alleles are dominant-this is homozygous dominant.
C. heterozygous dominant: That would be Ww-one dominant and one recessive allele.
D. heterozygous recessive: There is no such term; heterozygous always means one dominant and one recessive.
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