Photosynthesis Quiz for Grade 11

Which of the following best defines photosynthesis?

• Conversion of sound into energy

• Conversion of light energy into chemical energy

• Breakdown of glucose to release energy

• Transport of water and minerals in plants

What is the balanced chemical equation for photosynthesis (in symbols)?

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

• C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

• 6O₂ + 6H₂O → C₆H₁₂O₆ + 6CO₂

In which cellular structure does photosynthesis primarily occur?

• Mitochondrion

• Nucleus

• Chloroplast

• Ribosome

Which specific structure within the chloroplast traps light energy?

• Stroma

• Thylakoid membrane

• Outer membrane

• DNA molecule

What are the two main raw materials required for photosynthesis?

• Glucose and oxygen

• ATP and NADPH

• CO₂ and H₂O

• Light and chlorophyll

How does a plant obtain the carbon dioxide needed for photosynthesis?

• Through its roots

• Stored in chlorophyll

• Diffusion through stomata

• Transport via phloem

How does water reach the chloroplasts for photosynthesis?

• Diffusion through stomata

• Transport up xylem vessels from roots

• Active transport through phloem

• Production in the mesophyll

What type of energy is initially trapped during photosynthesis?

• Chemical energy

• Thermal energy

• Light energy

• Kinetic energy

Which pigment is primarily responsible for trapping light energy in plants?

• Carotene

• Xanthophyll

• Chlorophyll a

• Phycobilin

During photosynthesis, trapped light energy is converted into which form of chemical energy?

• Heat

• Glucose (and ATP/NADPH intermediates)

• Sound

• Mechanical energy