Question

what is one role of atp in the light - independent reaction of photosynthesis?
atp supplies the energy to produce glucose and other carbohydrates.
atp is produced when water molecules are split and chlorophyll electrons are excited.
atp supplies the energy to split water molecules.
atp produces co₂ and o₂ molecules.

Explanation:

In the light - independent reaction (Calvin cycle) of photosynthesis, ATP provides the energy required for the conversion of carbon dioxide into glucose and other carbohydrates.

• Option 2: ATP is produced in the light - dependent reactions (not the light - independent reactions) when water molecules are split and chlorophyll electrons are excited.
• Option 3: Water splitting occurs in the light - dependent reactions and is not directly powered by ATP in the light - independent reactions.
• Option 4: ATP is not involved in producing \(CO_2\) and \(O_2\) molecules in the light - independent reactions. \(CO_2\) is taken in from the atmosphere and \(O_2\) is a product of the light - dependent reactions.

Answer:

ATP supplies the energy to produce glucose and other carbohydrates.