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Tropism In Plants

Published on Nov 19, 2015

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PRESENTATION OUTLINE

1.

TROPISMS IN PLANS

Different Tropisms
Photo by nosha
2.

WHAT IS A TROPISM?

A tropism is the turning of all or part of an organism in a particular direction.
Photo by -nanio-
3.

TTHERE IS POSITIVE AND NEGATIVE

  • It can be positive (towards gravity, water etc.)
  • It can also be negative (away from water, Gravity etc.)
Photo by CropShot
4.

STIMULI VS STIMULUS

  • Stimulus is a thing that causes a reaction in an organ or tissue.
  • Stimuli is a plural form of stimulus.
Photo by Ahmad Fuad Morad
5.

HYDROTROPISM

The movement of a plant in response to water.
6.

GRAVITROPISM

The movement of a plant in response to gravity.
Photo by BlueRidgeKitties
7.

CHEMOTROPISM

The movement of a plant in response to chemicals.
Photo by IRRI Images
8.

PHOTOTROPISM

A plant's movement in response to light.
Photo by r_neches
9.

THERMOTROPISM

A plant's movement in response to temperature change.
Photo by Moose Winans
10.

THIGMOTROPISM

A plant's movement in response to touch.

Kenzie Albers