Biomolecules – short for biological molecules – are molecules that are involved in the maintenance and metabolic processes of a living organism. These can include proteins, carbohydrates, lipids, nucleic acids, primary metabolites, secondary metabolites and natural products. Biomolecules are typically found to be endogenous, and are organic compounds – with very few exceptions in both cases – with only four elements in oxygen, carbon, hydrogen and nitrogen making up 96% of the human body’s mass. Biomolecules are studied in the biological sub-fields of biochemistry and molecular biology. Let’s see how many words related to biomolecules you can find in this molecular word search puzzle!