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Gas Exchange in Plants
SBI 3U
Plants need Oxygen too.
• Plants obtain the
gases they need
through their leaves.
• They require oxygen
for respiration an...
The gases diffuse into the
intercellular spaces of the
leaf through pores, which
are normally on the
underside of the leaf...
http://virtual.yosemite.cc.ca.us/randerson/Lynn's%20Bioslides/27.jpg
Stomatal opening and closing depends on changes in
th...
http://biology.unlv.edu/Schulte/Anatomy/Leaves/PopulusStomata.jpg
http://www.plantsci.cam.ac.uk/Webb/images/stomata.jpg
http://bio1151.nicerweb.com/Locked/me
dia/ch36/36_15GuardCellFunction.jpg
http://www.progressivegardens.com/knowledge_tree/stomata.jpg
Lenticels – pores in the bark of
stems
http://sciencecity.oupchina.com.hk/biology/student/glossary/img/l
enticels.jpg
http...
http://www.digitalfrog.com/resources/archives/leaf.jpg
http://www.biotopics.co.uk/plants/leafst.html
http://home.comcast.net/~john.kimball1/BiologyPages/S/stoma.gif
http://www.northern.edu/ramsayj/etechWeb/images/leaves/leaf%20example1%20copy.JPG
Transport in plants
SBI 3U
http://www.bbc.co.uk/schools/gcsebitesize/img/bixylemphloem.gif
Gas exchange in plants
Gas exchange in plants
Gas exchange in plants
Gas exchange in plants
Gas exchange in plants
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Gas exchange in plants

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Gas exchange in plants

  1. 1. Gas Exchange in Plants SBI 3U
  2. 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. 3. 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. The Epidermis of a leaf.
  4. 4. http://virtual.yosemite.cc.ca.us/randerson/Lynn's%20Bioslides/27.jpg 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.
  5. 5. http://biology.unlv.edu/Schulte/Anatomy/Leaves/PopulusStomata.jpg
  6. 6. http://www.plantsci.cam.ac.uk/Webb/images/stomata.jpg
  7. 7. http://bio1151.nicerweb.com/Locked/me dia/ch36/36_15GuardCellFunction.jpg
  8. 8. http://www.progressivegardens.com/knowledge_tree/stomata.jpg
  9. 9. Lenticels – pores in the bark of stems http://sciencecity.oupchina.com.hk/biology/student/glossary/img/l enticels.jpg http://www.treedictionary.com/DICT200 3/IMAGES/LENTICELS%20BIRCH.jpg
  10. 10. http://www.digitalfrog.com/resources/archives/leaf.jpg http://www.biotopics.co.uk/plants/leafst.html
  11. 11. http://home.comcast.net/~john.kimball1/BiologyPages/S/stoma.gif
  12. 12. http://www.northern.edu/ramsayj/etechWeb/images/leaves/leaf%20example1%20copy.JPG
  13. 13. Transport in plants SBI 3U
  14. 14. http://www.bbc.co.uk/schools/gcsebitesize/img/bixylemphloem.gif

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