Stomata remain closed at night then respiration

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    • #17824
      kumar985
      Participant

      During night times stomata remain closed.Then how do the plants respire?

    • #115537
      BasicBiology
      Participant

      Good question..

      CO2 can still diffuse out of plant tissue when stomata are closed at night plus plants can reduce their metabolism to reduce the rate of respiration during the night.

    • #115548
      JackBean
      Participant

      1) They do not need to respire during night as there is no light, i.e. no photosynthesis.
      2) see CAM plants http://en.wikipedia.org/wiki/Crassulace … metabolism

    • #115553
      BasicBiology
      Participant

      I’m sorry but plants still respire during the night. Their cells are still doing things other than photosynthesizing that require energy.

    • #115569
      Darby
      Participant

      What makes you think that the stomates are closed throughout the night?

      They may not be open throughout, but they don’t need to be, any more than your mouth has to be open all the time for your respiratory needs.

      Night is also the best time to recharge the interior with carbon dioxide with minimized water loss.

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