Malaysia Chinese Independent School Senior 1 Biology (English)

1. Amino Acid and Peptides
Worksheet (Answer)

3. Peptide bond
• Step 1: The single-bonded
oxygen atom is removed from
the carboxyl group on the left-
most amino acid. Two
hydrogen atoms are removed
from the amino group on the
right-most amino acid. The
oxygen atom and the two
hydrogen atoms combine to
form a water molecule.
• Step 2: A peptide bond is
made between the carbonyl
carbon and the nitrogen.

4. Amino Acid and Peptides Worksheet
1. Show result of condensation of two amino acids with the given
amino-acid cutouts and paste the molecule on the space below.

5. 1. Show result of condensation of two amino acids with the given
amino-acid cutouts and paste the molecule on the space below.
Amino Acid and Peptides Worksheet

6. Amino Acid and Peptides Worksheet
2. Show the result of hydrolysis of the given peptide cutout and paste
the molecules on the space below.
= Peptide bond

7. Amino Acid and Peptides Worksheet
2. Show the result of hydrolysis of the given peptide cutout and paste
the molecules on the space below.