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
B.
It takes shorter wavelength of light and e- from H2O
Green plants and algae use two type of photo-system called Photosystem- I (PS-I) and Photosystem- II (PS -II).
In PS-I, chlorophyll absorb maximum at 700 nm wavelength of light thus reaction centre is P700 and PS-II absorb maximum at 680 nm wavelength of light thus reaction centre is P680. P680 (PS-II) extracts an electron from water, returning to its unexcited state because hydrolysis of H2O occurs in PS-II. So, O2 evolved in PS-II come from water.
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