4. which kind of macromolcule are helicase and dna polymerase?

Macromolecule that makes up DNA is called nucleic acid.

Explanation:

Molecules present in the body of an organism supporting various biological activities are called biomolecules. They are usually made up of elements carbon, nitrogen, oxygen . Biomolecules of greater size are called macromolecules.

Carbohydrates, lipids, nucleic acids and proteins are the 4 macromolecules essential for life.  Nucleic acid is the genetic material in living organisms. Macromolecules that provide energy are carbohydrates and lipids.

Carbohydrates are used as quick sources of energy while lipids are used for storage of energy.  Genetic information is contained in the DNA or RNA depending on the organism. In humans DNA  is the genetic material.

when it is at an intermediate population density