1.2-Water and hydrogen bonding

Explain why water is a good solvent.

It can form hydrogen bonds with any charged substance as it is dipolar.

What substances can be transported in water?

Any charged or polar substance.

Explain how the properties of water are essential for organisms.

•High Specific Heat Capacity- requires lots of energy to break hydrogen bonds. Keeps internal environment stable.

•Good Solvent- dissolves lots of substances for mass transport.

•Liquid at room temperature- Keeps blood stream liquid so substances can be moved by mass flow.

Explain what is meant by the dipole nature of water.

Water molecules have both a slightly positive end and a slightly negative end.

Define hydrogen bonding.

The bond formed between the negative or positive end of a water molecule and another substance.

Define bipolar.

Different ends of a molecule have different charges.