Saturday, 23 February 2013

2.67 understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf

The metabolic processes are respiration and photosynthesis.
Photosynthesis is CO2 + H2O > C6H12O6 + O2 thats carbon dioxide plus water becomes glucose and oxygen- the glucose is used for energy and oxygen is a waste product, it leaves the leaf through the stomata.
Respiration is C6H12O6 + O2 > H2O + CO2 + atp thats glucose + oxygen > water + carbon dioxide + energy- carbon dioxide is a waste product and is excreted from the leaf through the stomata.
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10 comments:

  1. Unknown5 March 2015 at 12:40

    I think it should be C6H12O6 + 6O2 → 6CO2 + 6H2O + energy of respiration and 6CO2 + 6H2O > C6H12O6 + 6O2 + 6H2O for photosynthesis.

    ReplyDelete
    Replies
    1. Unknown27 December 2015 at 09:37

      u just balanced it..... well done

      Delete
    2. Unknown27 December 2015 at 09:38

      u just balanced it..... well done

      Delete
    3. Unknown8 January 2017 at 06:42

      buddy... buddy... photosynthesis doesn't make water

      Delete
    4. Unknown8 January 2017 at 06:46

      buddy... buddy... photosynthesis doesn't make water

      Delete
  2. Not a belgian23 December 2015 at 00:49

    This comment has been removed by the author.

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  3. Mike Tsang26 June 2017 at 03:03

    The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  4. SophieRice26 June 2017 at 18:21

    more at

    http://igcse-biology-notes.blogspot.hk/2017/06/267-understand-origin-of-carbon-dioxide.html

    ReplyDelete

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