객관식
Which of the following functional groups is present in all amino acids?
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2. Molecular Representations
Functional Groups
객관식
Which part of the cholesterol molecule is hydrophilic?
A
The hydrocarbon tail
B
The
C
The steroid ring structure
D
The methyl groups
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검증된 단계별 안내1
Identify the functional groups present in the cholesterol molecule. Cholesterol contains a hydroxyl group (-OH), a hydrocarbon tail, a steroid ring structure, and methyl groups.
Understand the concept of hydrophilicity. Hydrophilic groups are those that can form hydrogen bonds with water, making them water-attracting.
Analyze the hydroxyl group (-OH). This group is polar and can form hydrogen bonds with water, making it hydrophilic.
Consider the hydrocarbon tail, steroid ring structure, and methyl groups. These are nonpolar and do not form hydrogen bonds with water, making them hydrophobic.
Conclude that the hydroxyl group is the hydrophilic part of the cholesterol molecule, as it is capable of interacting with water through hydrogen bonding.
