Multiple Choice
Which of the following is the full name of ATP?
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3. Amino Acids
Amino Acid Groups
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Which of the following is a functional group that is part of the building blocks of proteins (amino acids)?
A
Hydroxyl group (\(-OH\))
B
Methyl group (\(-CH_3\))
C
Phosphate group (\(-PO_4^{2-}\))
D
Amino group (\(-NH_2\))
Verified step by step guidance1
Step 1: Understand the structure of amino acids, which are the building blocks of proteins. Each amino acid contains a central carbon atom (α-carbon) bonded to four groups: an amino group (
), a carboxyl group (
), a hydrogen atom, and a variable side chain (R-group).
Step 2: Recognize that functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In amino acids, the amino group (
) is one of the key functional groups.
Step 3: Compare the given options to the functional groups present in amino acids. The hydroxyl group (
), methyl group (
), and phosphate group (
) are not part of the basic structure of amino acids.
Step 4: Identify the amino group (
) as the correct functional group that is part of the building blocks of proteins. This group is essential for forming peptide bonds during protein synthesis.
Step 5: Conclude that the amino group (
) is the correct answer because it is a fundamental component of amino acids, enabling their role in protein structure and function.
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Amino Acid Groups practice set
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