14. a structure with a chain of carbons and hydrogens with a cooh at the end will represent which of
the following macromolecules:
a. protein b. lipid c. carbohydrate d. nucleic acid

The correct answer is a Protein

Explanation:

Proteins are macromolecules consisting of amino acids which are joined by peptide bonds.

         Protein molecule has two ends,  amino(-NH2) group is present at one end that is known as amino terminal end or N terminal end whereas carboxyl group is present at the another end that is called carboxy terminal end or C terminal end.

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.

thinking it would be physical characteristics