Multiple Choice
The bonds found within hair that help organize protein chains in order to build hair are called:
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3. Amino Acids
Amino Acid Groups
Multiple Choice
In the general structure of an amino acid, which component makes each amino acid unique?
A
The carboxyl group
B
The alpha carbon (central carbon)
C
The side chain (R group)
D
The amino group
Verified step by step guidance1
Recall the general structure of an amino acid, which consists of a central alpha carbon bonded to four different groups: an amino group (-NH\_2), a carboxyl group (-COOH), a hydrogen atom, and a side chain (R group).
Understand that the amino group and carboxyl group are common to all amino acids and are responsible for the amino acid's acidic and basic properties.
Recognize that the alpha carbon is the central carbon atom to which all these groups are attached, but it itself is not unique among amino acids.
Focus on the side chain (R group), which varies in structure, size, charge, and polarity among different amino acids, making each amino acid unique.
Conclude that the side chain (R group) is the component that differentiates one amino acid from another, giving each its distinct chemical properties.
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