Plants, Growth, Development, Metabolism

Water content of plant parts

Spectroscopic identification of sodium, potassium, and cal-cium in plant ashes

Evaporation

Influence of the temperature on the reproduction rate ofgreen algae

Selected green algae are cultivated at various temperatures. Every day the number of cells per unit volume is determined with the help of a microscope and plotted against time on a graph. A comparison can then be made of the reproduction rates at various temperatures.

Absorption of minerals by plants

Osmosis

Transpiration

Water balance

Carbon dioxide release of plants through respiration

Thermonasty

Swelling and swelling pressure of seeds

Germination and oxygen

Particle motion (diffusion, thermal agitation)

Transpiration of leaves

Transpiration of leaves

Principle

To prepare and analyse diagrams to illustrate the transpiration of plants, depending on different environmental conditions, using a wireless data acquisition system: