Based on the how energy is generated, the correct order of steps of the electron transport chain is given as:
- Light energy excites electrons in photosytem II
- Excited electrons move from photosytem II through electron acceptor molecules
- Light energy excites electrons in photosytem 1 and transfers electrons to ferrodoxin
- Ferrodoxin transfers electrons to NADP+ forming NADPH
- Light energy causes a water molecule to split creating hydrogen ions and oxygen
- Hydrogen ions in the stroma diffuse through ATP synthase
- ADP is converted to ATP
What are the steps of the electron transport chain?
The electron transport chain is a series of steps in which electrons are transported to reducing equivalents such as NADH and FADH2 to molecular oxygen with the accompanying production of ATP.
The electron transport chain occurs in a sequential order of steps in chloroplasts and mitochondria of plants as follows:
Step 1:
Light energy excites electrons in photosytem II
Step 2:
Excited electrons move from photosytem II through electron acceptor molecules
Step3:
Light energy excites electrons in photosytem 1 and transfers electrons to ferrodoxin
Step 4:
Ferrodoxin transfers electrons to NADP+ forming NADPH
Step 5:
Light energy causes a water molecule to split creating hydrogen ions and oxygen
Step 6:
Hydrogen ions in the stroma diffuse through ATP synthase providing energy for the phosphorylation of ADP to ATP.
Step 7:
ADP is converted to ATP through phosphorylation by ATP synthase.
Thus, energy in the form of ATP is generated in the chloroplasts and mitochondria of plants by electron flow through electron carriers and finally to oxygen.
Learn more about about electron transport chain at: https://brainly.com/question/9045003
