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tropism assignment Nicholas

Published on Nov 18, 2015

Tropism assignment

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MORE DECKS TO EXPLORE

PRESENTATION OUTLINE

1.

Tropisms

Example By mrs. nicholas
Photo by mrwalker
2.

The definition of tropism is an orientation of an organism to an external stimulus, as light, especially by growth rather than by movement.

Photo by -nanio-
3.

TYPES OF EXTERNAL STIMULI

  • Positive (growing towards)
  • Negative (growing away from)
  • Stimuli = PLURAL
  • Stimulus = SINGULAR
Photo by Beverly & Pack
4.

GRAVITROPISM

PLANTS RESPONDING TO THE GRAVITATIONAL FORCE ON EARTH. ROOTS GROW DOWN AND SHOOTS GROW UP.
Photo by BlueRidgeKitties
5.

PHOTOTROPISM

PLANTS GROWING TOWARDS A LIGHT SOURCE (SUNLIGHT OR ARTIFICIAL)
Photo by melynda.huskey
6.

THIGMOTROPISM

PLANTS GROWING IN RESPONSE TO TOUCH
Photo by Grant MacDonald
7.

CHEMOTROPISM

PLANT GROWTH IN RESPONSE TO THE PRESENCE OF CHEMICALS
Photo by ©athrine
8.

HYDROTROPISM

PLANT GROWTH IN RESPONSE TO WATER
Photo by Old Shoe Woman
9.

Thermotropism

Growing and responding to temperature change
Photo by gailf548
10.

Venus Fly Trap

Good example of positive thigmotropism
Photo by =Taylor=
11.

Create a Haiku Deck which explains the types of tropisms (6) we have reviewed

Photo by teamstickergiant

Rebecca Nicholas