D Question 7 Why do the same pair of electrons receive energy from photons at ph

Question

D Question 7 Why do the same pair of electrons receive energy from photons at photosystem Il and then again at photosystem I? O Because some of the energy is lost to entropy O Because some of the energy is used to create a proton gradient O Because some of the energy is taken from ATP directly O Because some of the energy is used to make sugars in the photosystem D | Question 8 Which of the following are the main functions of photosystem 1? Mark all that apply O Remove electrons from water O Collect energy from photons Transfer energy from photons to the electrons O Release oxygen O Capture CO2

Explanation / Answer

Q7. Why does some pair of electrons receive energy from photons at photosystem II and then again at photosystem I?
Correct option:

Explanation: Photosystem II helps in the photolysis of water into oxygen and hydrogen ions. The hydrogen ion concentration is necessary for driving the reactions in both the photosystems forward. Hence the above-chosen option is correct.

Q8. Which of the following are main functions of photosystem 1?
Correct options:

Explanation: The main function of Photosystem I is to produce ATP by cyclic phosphorylation and NADPH synthesis in non-cyclic photosynthesis. Hence the above answers best describes the functions of photosystem I.

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