3.2-Photosynthesis Comprehensive Assessment

Which of the following best describes the primary location where photosynthesis occurs in a plant?

• Cell membrane
• Mitochondria
• Chloroplasts
• Nucleus

In the chemical equation 6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂, what are the reactants?

• Glucose and oxygen
• Carbon dioxide, water, and light energy
• ATP and NADPH
• Chlorophyll and sunlight

Which process converts light energy into chemical energy molecules during photosynthesis?

• Calvin Cycle
• Krebs Cycle
• Light Reactions
• Electron Transport Chain

How does photosynthesis contribute to the carbon cycle?

• By releasing carbon dioxide
• By storing carbon in glucose
• By destroying carbon molecules
• By converting oxygen to carbon

What happens when light intensity increases beyond a certain point in photosynthesis?

• Photosynthesis rate continues to increase
• Photosynthesis rate remains constant
• Photosynthesis rate reaches saturation
• Photosynthesis stops completely

Which of the following is NOT a direct input for photosynthesis?

• Sunlight
• Water
• Carbon dioxide
• Nitrogen

What chemical energy molecules are produced during the light reactions?

• Glucose and oxygen
• ATP and NADPH
• CO₂ and H₂O
• Sucrose and water

How do plants obtain carbon dioxide for photosynthesis?

• Through roots
• Through cell walls
• From the atmosphere via stomata
• By breaking down organic matter

What is the primary function of the Calvin Cycle in photosynthesis?

• Producing light energy
• Converting CO₂ into glucose
• Breaking down water molecules
• Releasing oxygen

How does photosynthesis support life beyond producing oxygen?

• By creating chemical energy for producers and consumers
• By generating heat
• By creating water
• By producing nitrogen