Q. 75.0( 1 Vote )
During light reaction in photosynthesis the following are formed:
A. ATP and sugar
B. Hydrogen, O2 and sugar
C. ATP, hydrogen and O2
D. ATP, hydrogen and O2 donor
Light reaction occurs inside thylakoids. It is dependent upon light. It involves photolysis of water and production of assimilatory power.
Electrons released during photolysis of water are picked up by P680 photocenter of photosystem II. From here electrons pass over a series of carrier which include PQ, cytochrome b-f complex and PC.
While passing over cytochrome complex, the electron losses sufficient energy for creation of proton gradient and ATP from ADP and inorganic phosphate. From PC electron is picked by the trap centre P700 of photosystem I which pushes out electron after absorbing light energy.
Electron passes over carriers FeS, ferredoxin and NADP-reductase which gives electron to NADP+ for combining with H+ to produce NADPH.
Rate this question :
Name the two important enzymes of C4 pathway, and explain their role in fixing CO2?Biology - Exemplar
What special anatomical features are displayed by leaves of C4 plants? How do they provide advantage over the structure of C3 plants?Biology - Exemplar
How are the activities of gastro-intestinal tract regulated?Biology - Exemplar
Why is Rubisco enzyme the most abundant enzyme in the world?Biology - Exemplar
In the diagram given below what is label A, B and C. What type of phosphorylation is possible in this?
Biology - Exemplar
List the important events and end products of the light reaction?Biology - Exemplar
Why photorespiration does not take place in C4 plants?Biology - Exemplar
Why is the Rubisco enzyme more appropriately called RUBP Carboxylase-Oxygenase and what important role does it play in photosynthesis?Biology - Exemplar