Question

all the process and steps involves in photosynthesis?? lil bit high level ans.

Answer 1

please ask a high level question before expecting a high level answer. to explain details to you, I expect you having informed yourself about the topic. if you have further questions, feel free to ask. :)

for the first information bundle, I can only refer you to wikipedia.

Answer 2

6CO2 + 12H2O + photons --> C6H12O6 + 6O2 + 6H20
Carbon dioxide + water + light --> Glucose, Carbon Dioxide, & Water.

Simple question = Simple answer. Nothing "high-level" about bio 101.

Answer 3

hey guys i mean how water diossciate and potons are taken by NADP and before NADP proton goes ETS den produce energy all dat stuff cyclic and non cyclic product light reaction and dark reaction how CO2 form carbohydrate all dat details in seps plz..

Answer 4

i have question
1.cyclic poduct and non cyclic product
2.how NADP accept electron as hydrogen is in the form of H2 all the steps
3.light reaction product
4.why there is need of two chlorophy a
5.how can we made proton gradient
6.PS 1 and 2 is also called??
7.how can we check that oxygen is evolved from water instead of CO2
8.what is the main aim of photosynthesis
9.difference between absorption spectrum of photosynthesis and.action spectrum of photosynthesis
10.maximum photosynthesis takes place in which light
11.how accesory pigments help to protect chlorophyll a from photo oxidation explain
12.PS 1 and PS 2 takes place in cyclic or non cyclic photophosphorylation
thats all i wanna know and acc. to u guys its not high level den cool, u can easily answer ma ques am i rit guys..??

Answer 5

okay, I can answer that. :-)
1. the product of cyclic eletron transport is only ATP from ATP synthase , while through non-cyclic electron transfer, you will also get reduction equivalents (NADPH).

2. NADP will accept exactly two protons and two electrons. this is done through interacting with a reducing agent. NADP will first abstract a proton H+ from it and in a second step, abstract an H- (1 proton, two electrons) from the same molecule.

3. 2 NADPH, 3 ATP, 1 O2 from two molecules of water

4. first reason: to reduce the needed energy for the electron excitation (this is why you need 680nm photons for PS II and 662nm photons for chlorophyll a). second reason: the speed limiter is the transfer of the excited electron to pheophytin/plastoquinone. since there are 2 chlorophylls and 2 acceptors, this means double speed. third reason: more space to transfer electrons to. if there isn't enough light evailable, this is the speed limiter, so again: greater energy generation speed.

5. imagine two compartiments filled with water. pump protons from one compartiment to the other through a membrane that doesn't allow them to flow back. the protons will want to go to the other compariment where there are less of them. this causes an osmotic pressure out of which you can pull enery for chemical reactions, or electricity.

6. PS II: P680; PS I: P700

7. easiest way: put two plants into a closed system. put one of the systems into the sun, the other in the dark. wait a few days. the plant in the sun will live cuz it made its own oxygen with photosynthesis. the other one will have died and you will measure a CO2-athmosphere in the container.

8. use light to cleave water. store the chemical energy you get in ATP and reduction equivalents.

9. absorption spectrum includes all the absorptions from accessory pigments as well, while the action spectrum is defined by the chlorophylls.

10. well I would guess, wavelengths below 700nm will produce the highest photosynthetic rates. there is no single wavelength because the two photosystems work together.

11. basically, they take the radicalic electron to reduce themselves, then give it back when te oxidative stress isn't that high.

12. the cyclic electron transporation only involves PS I. the non-cyclic involes both photosystems.

Answer 6

but how do we come to know that oxygen is released by H2O not CO2

Answer 7

since plants need to breathe, too. no oxygen -> no breathing possible.

Answer 8

u r not gettin ma ques i mean how u conclude the oxygen released from H2O i their any evidence

Answer 9

which is reducing power NADP+ , NADPH, NADPH + H+, NADPH2 ???

Answer 10

think about what I wrote, it is the answer to your question. :-)

I don't know how to phrase it that you could understand. I told you, oxygen is needed for breathing, since your system is closed, no oxygen from the outside can get in. no oxygen -> no breathing -> death. oxygen -> breathing -> life.

NADPH+H+ = NADPH2 = NADPH , this is the reduction equivalent.

Answer 11

no i mean both CO2 and H2O have oxygen how can u say that O2 is released by water npt CO2 in the process of photosynthesis..???

Answer 12

as already stated: the information is in my answer. you still need to work out the process of understanding it, I did not write in metaphors. :-)

Answer 13

ok... sir :)