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hassam said:brother....2009 ms is correct....cos this is wat happens really....see u split or OXIDISE water to protons,electrons and molecular oxygen..........why its like that.....bcos electrons have to fill that ELECTRON HOLE created as a result of excitation of electron in chlorophyll a molecule of PSII .....and where is proton needed?? u need it essentially for forming nadph...though electron is also needed there.....so splitting water in proton and hydroxide (according to ms 2004) will be USELESS(wrong) ......
oh..i just forgot photolysis is also enzyme catalysed reaction!hassam said:and ur second question abt effect of temperature
less photolysis ....why? well this photolysis is ENZYME-CATALYSED.......ENZYME is located on PSII.....so enzmyatic reactions are TEMPERATURE-SENSITIVE......so.... if temp. above their optimum level.....this enzymatic activity will start slowing done due to denaturation......so less PHOTOLYSIS!!!.....AND LESS PHOTLYSIS will directly effect atp production since in ATP producction , energy of electrons is harnessed as they go from a higher P.E level to a LOWER p.e level........and these electrons essentially come from water,.....other 2 points ..no idea :unknown: :unknown: :unknown:
blablabla said:explain chromosomal number in mitosis
mrpaudel said:Describe the part played by auxin in apical dominance in a plant shoot. Plz explain the highlighted one..i have not read about active transport...!! auxin moves down the shoot via auxin transporter proteins present in cell surface membrane..this is what i know....so..plz tell me, what moves by active transport?
AAestar said:mrpaudel said:Describe the part played by auxin in apical dominance in a plant shoot. Plz explain the highlighted one..i have not read about active transport...!! auxin moves down the shoot via auxin transporter proteins present in cell surface membrane..this is what i know....so..plz tell me, what moves by active transport?
I think it is the chemical diffuses down the stem and passes from cell to cell via active transport to the lateral bud.
rviboy said:plz any1...1.Explain y Io(gene for blood group o) is recessive to both iA and iB(ie alleles for blood group A and B respectively)..
2.Describe how a single base deletion in the allele Io leads to the synthesis of an inactive protein?
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