Photosynthesis Concepts and Processes

What is the balanced overall equation for photosynthesis?

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP

• CO₂ + H₂O → C₆H₁₂O₆ + O₂

• C₆H₁₂O₆ + O₂ → CO₂ + H₂O

Which of the following are the primary products of photosynthesis?

• Carbon dioxide and water

• Glucose and oxygen

• ATP and NADPH

• Light and heat

What is the primary function of chlorophyll in photosynthesis?

• To produce glucose

• To split water molecules

• To absorb light energy

• To release oxygen

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

• Stroma

• Cytoplasm

• Thylakoids

• Mitochondria

What are the main inputs required for the light-dependent reactions?

• Carbon dioxide and glucose

• ATP and NADPH

• Light and water

• Oxygen and sugar

Where do the light-independent reactions (Calvin Cycle) of photosynthesis take place?

• Thylakoid membrane

• Stroma

• Mitochondrial matrix

• Cytosol

Which molecules are directly used by the Calvin Cycle to produce glucose?

• Oxygen, water, and light

• Carbon dioxide, ATP, and NADPH

• Glucose, oxygen, and water

• Chlorophyll and sunlight

How do plants performing CAM photosynthesis adapt to hot, dry environments?

• They absorb more red light during the day.

• They keep their stomata open all day to maximize CO2 intake.

• They open their stomata at night to capture and store carbon dioxide.

• They produce a waxy coating to reflect sunlight.