CAIE A-Level Biology AS 2.3.1 Amino Acids and Peptide Bonds Questions
Identify amino acid structure and explain how peptide bonds link amino acids into polypeptides.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- AS
Identify amino acid structure and explain how peptide bonds link amino acids into polypeptides.
Which statements about peptide bond formation are correct?
1 The bond formation occurs between a carbon of one amino acid and a nitrogen of the next amino acid after the amino acids detach from tRNA.
2 The bond formation occurs at the ribosome while the amino acids are still attached to tRNA, and is a hydrolysis reaction.
3 The bond formation is important for growth of an organism and when the bond forms, a water molecule is removed.
1 and 3
2 and 3
2 only
3 only
D