10BD 8-3: The Process of Photosynthesis Reading Quiz

What is the primary function of chlorophyll in photosynthesis?

• To absorb carbon dioxide

• To absorb light energy

• To produce glucose

• To release oxygen

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

• Stroma

• Thylakoid membrane

• Cytoplasm

• Mitochondria

Which molecule is the terminal electron acceptor in the light-dependent reactions?

• ATP

• NADP+

• RuBP

• Oxygen

Explain why the thylakoid stroma is more negatively charged than the lumen.

• Because of the accumulation of H+ ions in the lumen

• Due to the presence of more electrons in the stroma

• Because of the splitting of water molecules

• Due to the production of oxygen in the stroma

What is the role of ATP synthase in photosynthesis?

• To split water molecules

• To transport electrons

• To synthesize ATP from ADP and inorganic phosphate

• To capture light energy

Describe the process by which oxygen is produced during photosynthesis.

• Oxygen is released when carbon dioxide is fixed

• Oxygen is produced by the splitting of water molecules

• Oxygen is a byproduct of glucose formation

• Oxygen is absorbed from the atmosphere

What is the first stable 3-carbon molecule formed in the Calvin cycle?

• G3P

• RuBP

• PGA

• Glucose

What is the significance of RuBisCo in the Calvin cycle?

• It captures light energy

• It catalyzes the fixation of carbon dioxide

• It transports electrons

• It splits water molecules

The chlorophyll in photosynthesis is used for:

• Absorbing light

• Breaking down water molecule

• No function

• Reduction of CO₂

Which of the following best describes the function of chlorophyll in photosynthesis?

• It captures light energy and converts it into chemical energy.

• It breaks down water molecules.

• It synthesizes glucose molecules.

• It releases oxygen into the atmosphere.