Photosynthesis Flashcards
all about Photosynthesis
What is photosynthesis
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, carbon dioxide, and water into glucose and oxygen.
What is the overall chemical equation for photosynthesis?
The overall chemical equation for photosynthesis is:
6CO2 + 6H2O → C6H12O6 + 6O2
Where does photosynthesis take place in a plant cell
Photosynthesis takes place in the chloroplasts of plant cells.
What are the two main stages of photosynthesis?
The two main stages of photosynthesis are the light-dependent reactions and the light-independent reactions (Calvin cycle)
Where do the light-dependent reactions occur?
The light-dependent reactions occur in the thylakoid membranes of the chloroplasts.
What are the main products of the light-dependent reactions?
The main products of the light-dependent reactions are ATP, NADPH, and oxygen.
What is the role of chlorophyll in the light-dependent reactions?
Chlorophyll absorbs light energy, which excites electrons and initiates the light-dependent reactions.
Where do the light-independent reactions (Calvin cycle) occur?
The light-independent reactions occur in the stroma of the chloroplasts
How does light intensity affect photosynthesis
Increasing light intensity increases the rate of photosynthesis to a certain point, after which it plateaus
How does temperature affect photosynthesis
Photosynthesis operates best within a certain temperature range; too high or too low temperatures can slow down or stop the process.
What is the function of ATP and NADPH in photosynthesis?
ATP and NADPH provide the energy and reducing power needed to convert CO₂ into glucose.
