Stimulus and Response Vocabulary

Dormancy

A period in an organisms life when growth and development stop.

Geotropism

The growth of parts of plants in respect of gravity.

Phototropism

The orientation of a plant or organism in response to light.

Turgor pressure

The pressure of water pushing against the cell wall of a plant cell.

Germination

The process in which a plant grows from a seed

Transpiration

The process where plants absorb water through the roots and give off water vapor through pores in their leaves.

Thigmotropism

The turning or bending of a plant or other organism in response to touch.

Wilting

to become limp through heat,loss of water or disease.