Photosynthesis Quiz

What is an autotroph?

• An organism that builds its own organic molecules from inorganic sources

• An organism that obtains organic molecules from other organisms

• An organism that obtains energy from sunlight

• An organism that obtains energy from chemical reactions

What are the two pathways of photosynthesis?

• Light-dependent reactions and Calvin-Benson Cycle

• Light-independent reactions and Calvin Cycle

• Dark reactions and Calvin-Benson Cycle

• Light reactions and Calvin Cycle

Where does gas exchange occur in plants?

• Stomata

• Roots

• Leaves

• Flowers

What is the main pigment in photosynthesis?

• Chlorophyll a

• Chlorophyll b

• Carotenoid

• NADPH

What is the final electron acceptor in the light-dependent reactions?

• NADPH

• ATP

• Water

• Oxygen

Where does the Calvin Cycle occur?

• Stroma

• Thylakoid

• Granum

• Chloroplast

What is the first phase of the Calvin Cycle?

• Carbon Fixation

• Reduction

• Regeneration

• Photolysis

What is the source of carbon for the Calvin Cycle?

• Carbon Dioxide

• Water

• Oxygen

• Glucose

What is the purpose of the light-dependent reactions?

• To convert solar energy into chemical energy

• To convert carbon dioxide into glucose

• To produce oxygen as a byproduct

• To convert glucose into ATP

What is the role of ATP in photosynthesis?

• To provide energy for the Calvin Cycle

• To absorb sunlight

• To transport electrons

• To produce oxygen