Biology
Grade-9
Easy
Question
In PSII, the energy of a photon is first used to __________.
- Produce ATP
- Produce oxygen
- Energise electron
- Produce carbon dioxide
Hint:
The photon energizes the electrons
The correct answer is: Energise electron
- In PS2 energy of photon causes the electrons in the chlorophyll to become excited
- The energy given to the electron allows it to break free from an atom of chlorophyll molecule
- The electrons are ultimately replaced by splitting of water molecules that produces oxygen
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