True or false: amino acids

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   Amino acids carry both an amino and an acidic group.

2. Statement is true

   Yes

   Statement

   Both groups sit on the same carbon in an α-amino acid.

3. Statement is true

   Yes

   Statement

   Only twenty amino acids occur in proteins.

4. Statement is true

   No

   Statement

   Every known amino acid occurs in proteins.

5. Statement is true

   Yes

   Statement

   Amino acids are described as substituted methanes.

Explanation