In flowering plants food is transported in which form? I searched on google and found that it is sucrose. Why not glucose/fructose/starch?

  • $\begingroup$ Is this a homework question? $\endgroup$ – another 'Homo sapien' Apr 19 '16 at 10:53
  • $\begingroup$ why r u asking that ? $\endgroup$ – user23312 Apr 19 '16 at 10:55
  • $\begingroup$ Because homework questions are off-topic here unless you show your effort for answer. Do some research on the topic, and if you are still confused, show us the line/paragraph/article (that you read during research) which is confusing you. $\endgroup$ – another 'Homo sapien' Apr 19 '16 at 10:57
  • $\begingroup$ i hav dun my research nd still not got my answer .... :( $\endgroup$ – user23312 Apr 19 '16 at 10:57
  • $\begingroup$ nd y r homework questions not allowed......afterall they r also a part of biology ?? $\endgroup$ – user23312 Apr 19 '16 at 10:58

This is a homework question but I will answer it (forgive me moderators ;).

You will get your answer from this answer:

Sucrose and starch are more efficient in energy storage when compared to glucose and fructose, but starch is insoluble in water. So it can't be transported via phloem and the next choice is sucrose, being water soluble and energy efficient sucrose is chosen to be the carrier of energy from leaves to different part of the tree. Another problem exists, glucose is highly reactive and this may result in some intermediate reactions while transporting glucose. Being a complex structure, sucrose is not as much reactive as glucose. So plants uses the sucrose as a medium to transfer energy. Inside the cells, sucrose is converted back to glucose and fructose.

Once again:

  1. Glucose- too reactive: CANCEL
  2. Fructose- too reactive, again: CANCEL
  3. Starch- insoluble in water: CANCEL
  4. Sucrose- no problem: ACCEPT
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