This course covers:
- What biomolecules are, classify them and understand their functions.
- Various kinds of carbohydrates and their functions.
- Proteins and their functions.
- Lipids and their functions.
- DNA and RNA and their functions.
Polymers are formed by linking monomers through covalent bonds.
Table below shows four major classes of macromolecules and their monomers.
|Fatty acid||∗Diglycerides, triglyerides|
∗Diglycerides, triglyerides are not formed by cross linking, however, they are considered as monomers that form fatty acid.
Classification of Biomolecules
Biomolecules are categorized into four major classes (Figure 1). They work together to perform specific functions and to build important structural features of cells.
Functions of Biomolecules
These are often built into long chains by joining together smaller units. The general term for a single unit is monomer. Multiple units of monomers are joined together to form polymer.
Amino acids and Proteins
Various amino acids and proteins carry out specific functions inside cells. They act as enzymes to catalyze reactions all over the body.
Some proteins are responsible for the structural support and movement, whereas, others help fight against germs and infections.
They help in energy storage and form structural component of a cell. Lipid hormones, sterols, mediates communication between cells, whereas, steroid hormones are important regulators of cell activity.
Oils and waxes provide protection by coating areas of the body that could be infected by germs. They are useful in maintaining cell contact and controling cell activity.