Banana dissection

[Navin]

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

Can you explain it?

[shashank_hi]

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...

[Poison]

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

Iodine is the indicator of starch.

[b_d_41501]

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.

[MrMistery]

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

[mothorc]

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

[Navin]

isn't it the placenta?

[mothorc]

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

[mith]

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

[mothorc]

thanks
I ll remember it