Biochemicals are molecules that are found in living organisms and play a crucial role in their functions. They can be broadly categorized into:

1. Carbohydrates:

* Sugars: Glucose, fructose, sucrose, lactose, maltose

* Polysaccharides: Starch, cellulose, glycogen

2. Lipids:

* Fats: Triglycerides, cholesterol

* Phospholipids: Phosphatidylcholine, phosphatidylserine

* Steroids: Testosterone, estrogen

3. Proteins:

* Enzymes: Amylase, pepsin, lipase

* Hormones: Insulin, glucagon, growth hormone

* Antibodies: Immunoglobulin G, immunoglobulin M

* Structural proteins: Collagen, keratin

4. Nucleic Acids:

* DNA: Deoxyribonucleic acid

* RNA: Ribonucleic acid

* ATP: Adenosine triphosphate

5. Vitamins:

* Water-soluble vitamins: Vitamin C, B vitamins

* Fat-soluble vitamins: Vitamin A, D, E, K

6. Minerals:

* Macrominerals: Calcium, phosphorus, magnesium, sodium, potassium, chloride

* Microminerals: Iron, zinc, copper, iodine, selenium

7. Other:

* Water: The most abundant molecule in living organisms.

* Gases: Oxygen, carbon dioxide, nitrogen.

* Pigments: Chlorophyll, melanin.

Examples of biochemicals and their functions:

* Glucose: Provides energy for cellular processes.

* Insulin: Regulates blood sugar levels.

* Collagen: Provides structural support to tissues.

* DNA: Stores genetic information.

* ATP: The energy currency of the cell.

* Chlorophyll: Captures light energy for photosynthesis.

These are just a few examples, and the list of biochemicals is vast and constantly expanding as scientists learn more about the complex world of living organisms.