1 / 11

Unique Tropism of Plants

Unique Tropism of Plants. By: Annie, Marcos, Joe, Liz. What is Tropism in Plants ?. Tropism in plants are a growth or movement in response to a direct stimulu s. Negative and positive response to tropism.

ravi
Download Presentation

Unique Tropism of Plants

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Unique Tropism of Plants By: Annie, Marcos, Joe, Liz

  2. What is Tropism in Plants ? • Tropism in plants are a growth or movement in response to a direct stimulus

  3. Negative and positive response to tropism • Positive = the plant, or a part of it, grows in the direction from which the stimulus came from. • Negative = growth away from the stimulus.

  4. What is a Stimulus • Any Change in an organisms environment that causes the organism to react • It’s a fancy way of saying “CAUSE “

  5. Why plants use tropisms ? • Plants are unable to be relocated if they happen to start growing were condition are right. • however plants can alter their growth so they can grow in more favorable conditions • they do this by detecting were conditions are right they altar their growth by using their tropisms.

  6. Types of Tropisms • Hydrotropism • Gravitropism • Phototropism • Thingmotropsim

  7. Hydrotropism • Hydrotropism is movement or growth in response to moister or water • Hydro- prefix for water so the roots grow toward water • Ex- pea plant

  8. Gravitropism • Gravitropism is movement or growth in the response to growth • Gravi-is a prefix relating to gravity, so the roots will grow downward while the plant grows upward • Ex- topsyturvy

  9. Phototropism • Phototropism is movement or growth in response to light • Photo-, is a prefix relating to light, so things will grow toward the sun or light source. • Ex- Sun flower

  10. Thingmotropsim • Thingmotropsim is movement or growth in response to touch • Ex- sweat pea

  11. ~Examples~ Phototropism Hydrotropism Thingmotropsim Gravitropism

More Related