Banana dissection

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    • #1743
      Navin
      Participant

      I did a banana dissection and flooded it with iodine and got the following result.

      Can you explain it?


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    • #28842
      shashank_hi
      Participant

      I guess the central part is non-binding to the dye. I’m not sure but I suppose iodine is an acidic dye suggesting that central portion may have a net negative charge. Whereas the remaining pulp is net positive. I know it’s going a bit microbio way, but maybe that’s the reason…

    • #28846
      Poison
      Participant
      quote shashank_hi:

      I’m not sure but I suppose iodine is an acidic dye.

      Iodine is the indicator of starch.

    • #28861
      b_d_41501
      Participant

      So if it’s binded (the darker region) this region contains starch. If it’s a lighter region, it did not bind, thus there is no starch.

    • #28877
      MrMistery
      Participant

      The central region is what consisted of the reproductory system and contains no starch. But since most bananas on the market are triploid they can not create viable gamets therefore do not have seeds

    • #28950
      mothorc
      Participant

      What is the terminology of the green central area.(I can’t find this word 😳 )

    • #28951
      Navin
      Participant

      isn’t it the placenta?

    • #28971
      mothorc
      Participant

      no, placenta just use for the same organ of animals
      It is: in an ovule, there are 1 or some xxxx. each xxxx have 1 or some embryal (seed) 😳
      what is xxxx ❓

    • #30001
      mith
      Participant

      just learnt this, placenta is where the seeds attach to the inner wall.

    • #30033
      mothorc
      Participant

      thanks
      I ll remember it

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