Here is the summary with one-word answers:
Monomer Elements Function Example
(Building Block)
Carbohydrates Monosaccharides C, H, O Energy Glucose
Lipids Fatty Acids C, H Energy Triglycerides
Proteins Amino Acids C, H, O, N Structure Enzymes
Nucleic Acids Nucleotides C, H, O, N, P Genetic DNA