Answer:
The molecules that present in the food that we eat are carbohydrate,protein and lipid.
Step-by-step explanation:
Carbohydrates Carbohydates are termed as polyhydroxy aldehyde or poly Hydroxy ketone . The monomer of carbohydrates are monosaccharide such as Glucose,Galactose,Mannose etc.
Proteins  Proteins are one of the most important macromolecule that is present in our food that we intake. Amino acids are the building blocks or monomers of proteins .Amino acid is joined to an adjacent amino acid by peptide bond.
Lipid  Fat generate more energy than carbohydrate and protein.Fatty acids are the monomers of Lipids .