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Which of the statements given above is/are correct?
i. All amino acids contain an amino group and a carboxyl group attached to the same carbon atom.
ii. There are only twenty types of amino acids that are found in proteins.
iii. The R group in amino acids can vary and influences the properties of the amino acid.
iv. Amino acids can only be classified as acidic or basic.
  • a)
    i, ii, and iii
  • b)
    ii and iv
  • c)
    i, iii, and iv
  • d)
    i, ii, iii, and iv
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Which of the statements given above is/are correct?i. All amino acids ...
- Statement i is correct because all amino acids indeed have an amino group (-NH2) and a carboxyl group (-COOH) attached to the same α-carbon.
- Statement ii is also correct as there are exactly twenty standard amino acids that are incorporated into proteins.
- Statement iii is correct because the R group (side chain) varies among amino acids and determines their unique chemical properties.
- Statement iv is incorrect; while amino acids can be classified as acidic or basic, they can also be neutral and aromatic, making this statement false.
Thus, the correct statements are i, ii, and iii, leading to the answer being Option A.
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Which of the statements given above is/are correct?i. All amino acids contain an amino group and a carboxyl group attached to the same carbon atom.ii. There are only twenty types of amino acids that are found in proteins.iii. The R group in amino acids can vary and influences the properties of the amino acid.iv. Amino acids can only be classified as acidic or basic.a) i, ii, and iiib) ii and ivc) i, iii, and ivd) i, ii, iii, and ivCorrect answer is option 'A'. Can you explain this answer?
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