Photosyntheses Flashcards
What is the primary function of photosynthesis?
To convert light energy into chemical energy in the form of glucose.
Which organelle is responsible for photosynthesis in plant cells?
Chloroplast.
What are the two main stages of photosynthesis?
Light-dependent reactions and the Calvin cycle.
True or False: Photosynthesis occurs only during the day.
True.
What pigment is primarily responsible for capturing light energy?
Chlorophyll.
Fill in the blank: The overall equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + _____
6O2.
Where do the light-dependent reactions take place?
In the thylakoid membranes of the chloroplasts.
What is produced as a byproduct of the light-dependent reactions?
Oxygen.
Which gas is taken in by plants during photosynthesis?
Carbon dioxide.
What is the main product of the Calvin cycle?
Glucose.
True or False: ATP and NADPH are produced during the Calvin cycle.
False.
What is the role of water in photosynthesis?
It provides electrons and protons and releases oxygen.
Which type of light is most effective for photosynthesis?
Red and blue light.
What factors can affect the rate of photosynthesis?
Light intensity, carbon dioxide concentration, and temperature.
Fill in the blank: The process of converting light energy into chemical energy involves the formation of _____ and NADPH.
ATP.
What is photolysis?
The process of splitting water molecules during the light-dependent reactions.
What is the significance of the stomata in photosynthesis?
They allow the exchange of gases, including the intake of CO2 and release of O2.
True or False: All plants perform photosynthesis.
False; some plants, like parasitic plants, do not.
What is the role of ribulose bisphosphate (RuBP) in the Calvin cycle?
It acts as a carbon dioxide acceptor.
Which enzyme catalyzes the fixation of carbon dioxide in the Calvin cycle?
Rubisco.
What happens to the glucose produced during photosynthesis?
It can be used for energy, stored as starch, or used to build other organic molecules.
Fill in the blank: The light-dependent reactions convert _____ energy into chemical energy.
Solar.
True or False: Photosynthesis is an endothermic process.
True.
What is the role of NADP+ in photosynthesis?
It acts as a carrier for electrons and protons, becoming NADPH.
