Question:
Which of the following amino acid possess - CH2COOH as its - R group?
Which of the following amino acid possess - CH2COOH as its - R group?
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Aspartic acid: -CH2COOH.
Glutamic acid: -(CH2)2COOH.
Lysine: -(CH2)4NH2.
Glutamic acid: -(CH2)2COOH.
Lysine: -(CH2)4NH2.
Updated On: Aug 18, 2026
- Aspartic acid
- Lysine
- Cysteine
- Glutamic acid
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Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Amino acids have specific side chains (R groups).
The R group determines the amino acid.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the R groups of amino acids.
Step 3: Detailed Explanation:
Aspartic acid has -CH2COOH as its R group.
Lysine has -(CH2)4NH2.
Cysteine has -CH2SH.
Glutamic acid has -(CH2)2COOH.
Thus, aspartic acid is correct.
Step 4: Final Answer:
Aspartic acid possesses -CH2COOH as its R group.
Hence, the correct option is (A). \bigskip
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