Multiple Choice
Of all the different bond types found in proteins, which one is primarily responsible for linking amino acids together in the primary structure?
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3. Amino Acids
Amino Acid Groups
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Which functional group is present in amino acids but not found in starch?
A
Amino group (\(-NH_2\))
B
Glycosidic bond
C
Methyl group (\(-CH_3\))
D
Hydroxyl group (\(-OH\))
Verified step by step guidance1
Step 1: Begin by identifying the functional groups listed in the problem: amino group (
), glycosidic bond, methyl group (
), and hydroxyl group (
).
Step 2: Recall the structure of amino acids. Amino acids contain two key functional groups: an amino group (
) and a carboxyl group (
).
Step 3: Consider the structure of starch. Starch is a polysaccharide composed of glucose monomers linked by glycosidic bonds. It primarily contains hydroxyl groups (
) and glycosidic bonds, but it does not contain amino groups (
).
Step 4: Compare the functional groups present in amino acids and starch. The amino group (
) is unique to amino acids and is not found in starch.
Step 5: Conclude that the functional group present in amino acids but not found in starch is the amino group (
).
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Amino Acid Groups practice set
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