Tobacco flowers have..?

how many





1. stamens


2. pistils


3. ovaries


4. ovules





does anyone know the amounts or where can i find this info?





also, are there more pollen cells produced by one anther than ovules produced by one ovary and why?

Tobacco flowers have..?
1) Stamens == There are five stamens that are epipetalous ( Attached to the petals )





2 ) Pistil = The pistil ( not 's' ) or Gynoecium is made up of two carpels and they are fused to form a single composite structure , ( Bicarpellary , syncarpous ) .





3 ) Ovaries = There is a single compound ovary( Syncarpous ) that is superior and has two chambers .





4 ) Ovules = Are numerous and attached to axile placentation. The placenta is swollen or fleshy.





click the link ==


http://delta-intkey.com/angio/images/sol...





http://delta-intkey.com/angio/www/solana...








Yes ! There are always more pollen grains than ovules in any flower . There are two reasons .





i ) There is more wastage of pollen grains involved as they are being transferred by the agents of pollination.





Ovules, on the other hand , are well protected in an ovary and do not move away.





i i ) A plant / flower has to use more energy / food to produce a single ovule as it is later on involved in the nourishment of embryo . So it can not AFFORD to produce many ovules .





Pollen grains are much very much smaller than an ovule .
Reply:1) 5


2) 1


3) two parts


4) a lot of


look here:


http://it.wikipedia.org/wiki/Immagine:Ko...


sorry for my english


Ciao!