How do plants utilize the products of the light reactions?
Practice Questions
Q1
How do plants utilize the products of the light reactions?
For cellular respiration only
To synthesize proteins
To fuel the dark reactions
To produce more chlorophyll
Questions & Step-by-Step Solutions
How do plants utilize the products of the light reactions?
Correct Answer: Plants use ATP and NADPH from light reactions in dark reactions.
Step 1: Plants capture sunlight using their leaves.
Step 2: During the light reactions, plants convert sunlight into energy, producing ATP and NADPH.
Step 3: ATP and NADPH are energy-rich molecules created in the light reactions.
Step 4: These molecules are then used in the dark reactions, also known as the Calvin cycle.
Step 5: In the Calvin cycle, ATP and NADPH help convert carbon dioxide from the air into glucose, which is food for the plant.
Light Reactions and Dark Reactions – Plants convert light energy into chemical energy (ATP and NADPH) during light reactions, which are then used in the Calvin cycle (dark reactions) to synthesize glucose.
