Question

The process of non-cyclic photophosphorylation occurs in _________

• A. aerobic conditions, high CO$_2$ concentration and low light intensity
• B. anaerobic conditions, high CO$_2$ concentration and enough light intensity
• C. aerobic conditions, high CO$_2$ concentration and enough light intensity
• D. aerobic conditions, low CO$_2$ concentration and enough light intensity

Hint:

Non-cyclic photophosphorylation produces {ATP, NADPH, and O$_2$} and requires {both photosystems and sufficient light}.

Answer 1

The Correct Option is C

Step 1: Understanding non-cyclic photophosphorylation.
Non-cyclic photophosphorylation involves both Photosystem II and Photosystem I and results in the formation of ATP, NADPH, and oxygen.

Step 2: Conditions required for the process.
This process requires the presence of oxygen-releasing reactions, sufficient light intensity to excite both photosystems, and high CO$_2$ concentration to support subsequent carbon fixation.

Step 3: Analysis of options.
Options (A), (B), and (D) do not satisfy all the essential conditions required for non-cyclic photophosphorylation. Option (C) correctly mentions aerobic conditions, high CO$_2$ concentration, and enough light intensity.

Step 4: Conclusion.
Thus, the correct answer is (C) aerobic conditions, high CO$_2$ concentration and enough light intensity.