Question

1. name the functional group on this molecule

amine group
methane
carboxyl group
carbonyl group
question 13
10 pts

1. name the molecule below.

disaccharide
amino acid
fatty acid (carboxyl group)
steroid

Explanation:

For Question 12:

The molecule contains both an amine ($\text{-NH}_2$) and a carboxyl ($\text{-COOH}$) group, but the options include both. Carboxyl is a distinct functional group ($\text{-COOH}$) present, while amine is also present, but the carboxyl is a complete, identifiable terminal group here. However, the molecule is an amino acid, but the question asks for a functional group. The carboxyl group is clearly a labeled option and is present.

For Question 13:

The molecule has a long hydrocarbon chain with a carboxyl group ($\text{-COOH}$) at one end, which is the defining structure of a fatty acid.

Answer:

1. carboxyl group
2. fatty acid (carboxyl group)