IB Biology Topic A1.1: Water Questionbank

Capillary action would be enhanced

Transpiration would increase significantly

Water would fail to climb the walls of xylem vessels

Cohesion between water molecules would be lost

Increased evaporation of water in shallow pools

Greater oxygen exchange at the water surface

Creation of a supportive layer for organisms such as insects

Reduced cohesion between water molecules in deeper layers

They rely on external sources of heat to regulate temperature.

They live in environments with rapid temperature fluctuations.

They experience stable thermal conditions in water habitats.

They are exposed to freezing conditions more often than land animals.

It allows diffusion of ions and polar molecules in cells.

It promotes the aggregation of nonpolar molecules.

It allows enzymes to act only in lipid environments.

It causes cell membranes to dissolve.