Scelta multipla
Which of the following functional groups is present in all amino acids?
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4. Biomolecules
Functional Groups
Scelta multipla
Which of the following functional groups increases the solubility of organic compounds in water?
A
—OH
B
—COOH
C
—COH
D
All of the listed responses are correct.
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Identify the functional groups given in the problem: hydroxyl group (—OH), carboxyl group (—COOH), and carbonyl group (—COH).
Understand that solubility in water is often increased by the presence of polar groups that can form hydrogen bonds with water molecules.
Recognize that the hydroxyl group (—OH) is polar and can form hydrogen bonds with water, thus increasing solubility.
Acknowledge that the carboxyl group (—COOH) is also polar and can form hydrogen bonds, as well as ionize to form carboxylate ions, further enhancing solubility.
Note that the carbonyl group (—COH) is polar due to the electronegativity difference between carbon and oxygen, allowing it to interact with water molecules and increase solubility.
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