Biology paper 1 terms

hydrogen bonds

In water molecules, hydrogen bonds are formed between the partially positive hydrogens of one water molecule and the partially negative oxygens of other water molecules.

hydrophilic

Hydrophilic substances are attracted to water and form intermolecular bonds. They are said to be soluble in water.

non-polar

Non-polar molecules are hydrophobic and do not interact with water

Cohesion

cohesion explains water’s surface tension properties, and is responsible for maintaining an uninterrupted water column

adhesion

adhesion explains capillary action, in plants, adhesion allows water to travel by capillary forces

viscosity

stroperigheid