1 / 19

Gas Exchange in Plants

Gas Exchange in Plants. SBI 3U. Plants need Oxygen too. Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis. http://www.chemsoc.org/networks/LearnNet/cfb/images/12A.jpg. The Epidermis of a leaf.

rona
Télécharger la présentation

Gas Exchange in 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. Gas Exchange in Plants SBI 3U

  2. Plants need Oxygen too. • Plants obtain the gases they need through their leaves. • They require oxygen for respiration and carbon dioxide for photosynthesis. http://www.chemsoc.org/networks/LearnNet/cfb/images/12A.jpg

  3. The Epidermis of a leaf. The gases diffuse into the intercellular spaces of the leaf through pores, which are normally on the underside of the leaf – stomata. From these spaces they will diffuse into the cells that require them.

  4. Stomatal opening and closing depends on changes in the turgor of the guard cells. When water flows into the guard cells by osmosis, their turgor increases and they expand. If the guard cells loose water the opposite happens and the pore closes. http://virtual.yosemite.cc.ca.us/randerson/Lynn's%20Bioslides/27.jpg

  5. http://biology.unlv.edu/Schulte/Anatomy/Leaves/PopulusStomata.jpg

  6. http://www.plantsci.cam.ac.uk/Webb/images/stomata.jpg

  7. http://bio1151.nicerweb.com/Locked/media/ch36/36_15GuardCellFunction.jpghttp://bio1151.nicerweb.com/Locked/media/ch36/36_15GuardCellFunction.jpg

  8. http://www.progressivegardens.com/knowledge_tree/stomata.jpg

  9. Lenticels – pores in the bark of stems http://www.treedictionary.com/DICT2003/IMAGES/LENTICELS%20BIRCH.jpg http://sciencecity.oupchina.com.hk/biology/student/glossary/img/lenticels.jpg

  10. http://www.biotopics.co.uk/plants/leafst.html http://www.digitalfrog.com/resources/archives/leaf.jpg

  11. http://home.comcast.net/~john.kimball1/BiologyPages/S/stoma.gifhttp://home.comcast.net/~john.kimball1/BiologyPages/S/stoma.gif

  12. http://www.northern.edu/ramsayj/etechWeb/images/leaves/leaf%20example1%20copy.JPGhttp://www.northern.edu/ramsayj/etechWeb/images/leaves/leaf%20example1%20copy.JPG

  13. Transport in plants SBI 3U

  14. http://www.bbc.co.uk/schools/gcsebitesize/img/bixylemphloem.gifhttp://www.bbc.co.uk/schools/gcsebitesize/img/bixylemphloem.gif

More Related