Diese Präsentation wurde erfolgreich gemeldet.
Wir verwenden Ihre LinkedIn Profilangaben und Informationen zu Ihren Aktivitäten, um Anzeigen zu personalisieren und Ihnen relevantere Inhalte anzuzeigen. Sie können Ihre Anzeigeneinstellungen jederzeit ändern.
By : ILLANI BINTI IBRAHIM SCIENCE TEACHER MRSM TAWAU Stimuli and responses in Plants
<ul><li>?  TROPISMS </li></ul>
<ul><li>The response of plants to a stimulus in a particular direction </li></ul>
PHOTOTROPISM GEOTROPISM HYDROTROPISM THIGMOTROPISM
<ul><li>-Growth movement shown by plants in response to  LIGHT . </li></ul><ul><li>-Shoots grow towards light  </li></ul><...
<ul><li>-Growth movement shown by plants in response to  GRAVITY . </li></ul><ul><li>-Roots always grow downwards - in the...
<ul><li>-Growth movement shown by plant in response to  WATER . </li></ul><ul><li>-Roots grow towards water.->POSITIVE HYD...
<ul><li>-Response by plants to  TOUCH  or contact with solid structure </li></ul><ul><li>-Climbing plants - have weak stem...
<ul><li>?  NASTIC MOVEMENT </li></ul>
<ul><li>-The direction of responses do not depend on the direction of the stimuli. </li></ul><ul><li>-Plants responses to ...
Nächste SlideShare
Wird geladen in …5
×

Stimuli and responses in plants

33.284 Aufrufe

Veröffentlicht am

Veröffentlicht in: Technologie, Business
  • Follow the link, new dating source: ❶❶❶ http://bit.ly/2F90ZZC ❶❶❶
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier
  • Sex in your area is here: ♥♥♥ http://bit.ly/2F90ZZC ♥♥♥
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier
  • Get Now to Download PDF Format === http://bestadaododadj.justdied.com/B01K2OQLNI-on-the-movements-and-habits-of-climbing-plants-cambridge-library-collection-darwin-evolution-and-genetics-by-charles-darwin-2009-07-20.html
       Antworten 
    Sind Sie sicher, dass Sie …  Ja  Nein
    Ihre Nachricht erscheint hier

Stimuli and responses in plants

  1. 1. By : ILLANI BINTI IBRAHIM SCIENCE TEACHER MRSM TAWAU Stimuli and responses in Plants
  2. 2. <ul><li>? TROPISMS </li></ul>
  3. 3. <ul><li>The response of plants to a stimulus in a particular direction </li></ul>
  4. 4. PHOTOTROPISM GEOTROPISM HYDROTROPISM THIGMOTROPISM
  5. 5. <ul><li>-Growth movement shown by plants in response to LIGHT . </li></ul><ul><li>-Shoots grow towards light </li></ul><ul><li>->POSITIVE PHOTOTROPISM </li></ul><ul><li>-Roots grow away from light. </li></ul><ul><li>->NEGATIVE PHOTOTROPISM </li></ul>
  6. 6. <ul><li>-Growth movement shown by plants in response to GRAVITY . </li></ul><ul><li>-Roots always grow downwards - in the direction of gravity </li></ul><ul><li>->POSITIVE GEOTROPISM </li></ul><ul><li>-Shoots grow upwards away from gravity. ->NEGATIVE GEOTROPISM </li></ul>
  7. 7. <ul><li>-Growth movement shown by plant in response to WATER . </li></ul><ul><li>-Roots grow towards water.->POSITIVE HYDROTROPISM -Shoots grow away from water. -> NEGATIVE HYDROTROPISM </li></ul>
  8. 8. <ul><li>-Response by plants to TOUCH or contact with solid structure </li></ul><ul><li>-Climbing plants - have weak stems and tendrils to support their own weight such as cucumber and morning glory </li></ul><ul><li>-Ensures that these plants </li></ul><ul><li>can grow upwards </li></ul><ul><li>- towards the sunlight. </li></ul>
  9. 9. <ul><li>? NASTIC MOVEMENT </li></ul>
  10. 10. <ul><li>-The direction of responses do not depend on the direction of the stimuli. </li></ul><ul><li>-Plants responses to external stimuli from any direction -Example : </li></ul><ul><li>Mimosa plant Venus fly trap </li></ul>

×