A. Where in the chloroplast does a proton gradient form during the light reactio

Question

A. Where in the chloroplast does a proton gradient form during the light reactions of photosynthesis? In other words where does a high concentration of protons develop and where is there a low concentration?? High concentration: Low Concentration: B. What is the proton concentration gradient used for? From what molecule in plant chloroplasts is oxygen released during the light reactions that we end up breathing?? What is the ultimate/original source of energy found in the bonds of almost every organic molecule on earth? From what molecule do electrons INTITALLY come from that reduce Photosystem II and ultimately end up reducing NADP ? What is the name of the enzyme that catalyzes the first reaction of the Calvin Cycle? What is the 3 carbon product at the end of glycolysis called? Are the molecules of ATP produced during glycolysis the result of substrate-level phosphorylation or oxidative phosphorylation (chemiosmosis)? Where in the cell does glycolysis occur? Glycolysis involves "energy investment" and "energy payoff" phases. How many ATP molecules are gained for one molecule of glucose that is catabolized by glycolysis after subtracting the number that are invested?

Explanation / Answer

hey hii, its really hard to see this picture...!

1) high concentration = in inner thylakoid menbrane

   low concentration of protons= stroma

2) atp (adinesine triphosphate ) acts a sproton gradient force

3) water. (h20) water splits into oxygen and protons by oxygen evolving complex

4)

5) imitailly sun is the source of electrons for ps ll to get reduced.

6) rubisco is the enzyme that combines carbon dioxide and ribulose 1,5 bis phosphate to form 3-PG.

7) 3- carbon product formed at the end of calvin cycle is pyruvate which enters into citric acid cycl.

8) ATPcan be produced in both substrate level phosphorylaion and oxidative phosphorylation.

9) glycolysis occurs in cytosol.

hope this helps.

good luck

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