Question

What are four major macromolecules and what is their structure and function?

Answer 1

The four macromolecules are nucleic acids, carbohydrates, proteins, and lipids.

Explanation:

Structure:
1. Nucleic acids: Contain N in rings, nucleotides made of sugar, phosphate and nitrogenous base

1. Carbohydrates: Made of C,H, and O; –OH's on all carbons except one

2. Lipid: Made of C,H, and O; lots of C-H bonds; may have some C=C bonds (unsaturated)

3. Protein: Contain N, have N-C-C backbone

Function:

1. Nucleic acids: Stores and transfers info
2. Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall
3. Lipid: Insulator and stores fat and energy
4. Protein: Provide structural support,transport, enzymes, movement, defense.