Question

ATP formation during photosynthesis is

• A. Phosphorylation
• B. Photophosphorylation
• C. Oxidative phosphorylation
• D. None of these

Answer 1

The correct option is B

Photophosphorylation

The correct option is B.

Explanation of the correct option: -

1. Through the creation of ATP, light energy is transformed into chemical energy during the process known as photophosphorylation. The conversion of NADP into NADPH⁺ is a process that can be referred to as an electron transport mechanism (ETS).
2. It is the process of creating ATP using light energy from ADP and inorganic phosphate (IP). Photophosphorylation is related to the transport of electrons via ETS. The electron transport chain is a collection of electron carriers that electrons transit through on their way downhill, releasing energy at each stage that is used to create an electrochemical proton gradient that aids in ATP synthesis.
3. Associative photophosphorylation can be classified as non-cyclic or cyclic depending on the path taken by electrons.

Explanation of the incorrect options: -

Option A: -

1. A biochemical procedure where phosphate is added to an organic molecule.
2. As two examples, phosphate can be added to glucose to create glucose monophosphate or to adenosine diphosphate (ADP) to create adenosine triphosphate (ATP).

Option C: -

1. The mechanism through which ATP synthesis is connected to the flow of electrons through the mitochondrial electron transport chain and the resulting oxygen consumption is known as oxidative phosphorylation.
2. The majority of the energy required for biosynthesis, maintaining a healthy ion balance, and mechanical effort is provided by oxidative phosphorylation, which is the principal source of ATP in higher animals

Final Answer: - ATP formation during photosynthesis is Photophosphorylation