Necessity for support and movement in plants
- They enable plants to be held upright to trap maximum light for photosynthesis and gaseous exchange.
- It enables animals and plants to adjust to their environment.
- To hold flowers and fruits in appropriate position for pollination and dispersal respectively.
- To enable plants to grow to great heights and withstand forces of environment e.g. strong winds.
- Movement of male gametes to effect fertilization and ensure perpetuation of a species.
- Plant parts move in response to certain stimuli in the environment of tropisms.
