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Tropism Presentation

Published on Nov 29, 2015

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PRESENTATION OUTLINE

Chemo tropism
Growth of organisms
Such as bacteria and plants, navigated by chemical stimuli

You can see Chemo tropic movement during growth of the pollen tube

Geotropism is a turning or growth movement by plants, fungi, or animals in response to gravity

geotropism is a response to gravity

Heliotropism is the seasonal motion of a plants parts in response to the suns position

Heliotropism focuses mainly on the leaves or flowers part of a plant

Hydrotropism is a negative or positive response to a plants growth in which the direction is determined by water

The direction of growth is determined by water bc 'hydro' means water; hydrotropism

Thigmotropism is the movement in which a plant grows in response to contact with stimuli

Thigmotropism occurs when plants grow around a surface like on a wall

Genosperm are big plants with needle like leaves and reproduce using cones

Angiosperm are also big plants that will make a flower and fruits

Seedless vascular have roots, stems and leaves, they reproduce with spores

Nonvascular have NO roots, stems or leaves, live next to water, and are very small

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Photo by ~Sage~