Photosynthesis Part 1 (Gen)

What is the primary purpose of photosynthesis in plants?

• To convert oxygen into carbon dioxide

• To convert carbon dioxide and water into glucose and oxygen

• To convert glucose into proteins

• To convert nitrogen into ammonia

Where does photosynthesis take place within a plant cell?

• Mitochondria

• Nucleus

• Chloroplast

• Ribosome

What are the fluid-filled sacs within the chloroplast called?

• Grana

• Stroma

• Thylakoids

• Vesicles

Which pigment is primarily responsible for absorbing light in photosynthesis?

• Carotenoids

• Chlorophyll a

• Chlorophyll b

• Xanthophyll

What is the wavelength of light absorbed by Photosystem I (PSI)?

• 680 nm

• 700 nm

• 450 nm

• 550 nm

What is the main product of the light-dependent reactions that is used in the Calvin Cycle?

• Oxygen

• Glucose

• ATP and NADPH

• Carbon dioxide

Where do the light-dependent reactions occur within the chloroplast?

• Stroma

• Thylakoid membrane

• Cytoplasm

• Grana

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

• Oxygen

• NADP+

• Water

• Carbon dioxide

What is the main purpose of the electron transport chain in the light-dependent reactions?

• To produce glucose

• To generate a proton gradient

• To fix carbon dioxide

• To synthesise proteins

What happens to the hydrogen ions in the lumen during the light-dependent reactions?

• They are used to synthesise glucose

• They flow into the stroma through ATP synthase

• They are converted into oxygen

• They are absorbed by chlorophyll