Biology Forum Community General Discussion Absence of Starch

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    • #15693
      Shanique
      Participant

      A multicoloured leaf was removed from a plant and tested for starch. No starch was present although the plant was in the sunlight for more than 8hrs. Why is starch absent?

    • #108164
      daniel.kurz
      Participant

      Quick uptake of glucose to cellulose and not storing glucose in starch or perhaps the plant doesn’t make glucose that can be put into starch. It might make another carbohydrate type.

    • #108166
      JackBean
      Participant
      quote daniel.kurz:

      Quick uptake of glucose to cellulose and not storing glucose in starch or perhaps the plant doesn’t make glucose that can be put into starch. It might make another carbohydrate type.

      I don’t think that’s the reason, the glucose and starch production are ubiqitous and general. I think the hint is the multicolored leaf. But I don’t know, what should that mean. Old leaf?

    • #108180
      daniel.kurz
      Participant
      quote JackBean:

      But I don’t know, what should that mean. Old leaf?

      I hadn’t thought about that.

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