Chemistry => Biochemistry
Let's define each of the biomolecules mentioned.
1. Proteins: These are linear chains of amino acids, thus forming macromolecules, which means large molecules.
2. These are compounds that are present within the cell. They are formed by the chaining of many nucleotides.
3. Carbohydrates: They can be called also saccharides. They are mainly made up of three elements: carbon, oxygen, and hydrogen. Among them are monosaccharides, disaccharides, and oligosaccharides.
4. Lipids: are heterogeneous groups that dissolve in nonpolar compounds. These include saturated and unsaturated fats.
According to the meaning, the answer will be:
1. proteins ---> a. amino acids
2. nucleic acids ---> c. nucleotides
3. carbohydrates ----> d. monosaccharides
4. lipids ----> b. glycerol and fatty acids