Which one of the following does'nt help in molecule transport?
Diffusion
Osmosis
Surface tension
Active transport
Energy transfer in photosynthesis occurs as
Phycoerythrin Phycocyanin Carotenoid Chlorophyll a
Chlorophyll b Carotenoid Phycoerythrin Chlorophyll a
Phycocyanin Phycoerythrin Carotenoid Chlorophyll a
Chlorophyll b Carotenoid Phycocyanin Chlorophyll a
In photosynthesis what occurs in PS-II?
It takes longer wavelength of light and e- from H2O
It takes shorter wavelength of light and e- from H2O
It takes longer wavelength of light and e- from NADP
It takes shorter wavelength of light and e- from NADP
Though Cycas has 2 cotyledons, this is not included in dicot because
naked ovule
they have megaspore
appears as palm tree
has compound leaves
In meiosis division is
Ist reductional and IInd equational
Ist equational and IInd reductional
both reductional
both equational
A.
Ist reductional and IInd equational
The term 'Meiosis' was given by Farmer and Moore (1905). To study meiosis in plants, anther is the best part.
The process of meiosis involves two division of the genetic material. The first division is called reduction division or Meiosis I as it reduces the number of chromosomes from 46 chromosomes or 2n to 23 chromosomes or n.
Meiosis II is called equational division because it does not reduce chromosome numbers. A nuclear division that maintains the same ploidy level of the cell.