Molecular Shape and Functions

The shape of a molecule often relates to its function.

Examples show this trend.

Enzymes – help to speed up reactions by bringing reactions into contact with each other

Water – very important for cells to live

• • Molecules are small enough to fit through cell membranes so energy is not used to transport water
  • The polarity of water makes it easy to transport
  • Polarity lets it be a good solvent in the body

Lipids Storing energy

Have lots of bonds to store energy.