Term

Definition

3. Carbohydrate

a Molecule that's a source of energy in the body

4 Nucleic acid

b. Many structures and enzymes in the body are

5. Lipids

c Ore substance that makes up cel membranes

6. Proteins

d. The molecule that carries the genetic materal in

In an ionic bond, the electrons are lost or gained between atoms. In a covalent bond, the electrons are shared between atoms.

Protons and electrons both have an electric charge. Protons have a positive charge and electrons have a negative charge. This means that their charges are equal and opposite. The nature of the charge influences how electricity moves through an atom.

a

d

c

b

question 3 correct answer

Answer: Not sure exactly what the question is, but Nucleic acid matches with choice d and Proteins match with choice b. Carbohydrate is a and Lipids is c.