Photosynthesis

• Where does photosynthesis occur in plants?

  In chloroplasts in the leaves
• What is the name of the green pigment in leaves?

  Chlorophyll
• What type of reaction is photosynthesis?

  Endothermic
• What type of energy is used in photosynthesis?

  Light energy
• What is the word equation for photosynthesis?

  Carbon dioxide + water → glucose + oxygen
• What is the balanced symbol equation for photosynthesis?

  6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
• What does the term limiting factor mean?

  Anything that limits the rate of a reaction
• What are the limiting factors of photosynthesis?

  • Temperature
  • Carbon dioxide concentration
  • Light intensity
  • Amount of chlorophyll
• How does light intensity affect the rate of photosynthesis?

  Increases until another factor becomes limiting
• How does carbon dioxide concentration affect the rate of photosynthesis?

  Increases until another factor becomes limiting
• How does temperature affect the rate of photosynthesis?

  Increases until enzymes are denatured
• What is the equation for the inverse square law for light intensity?

  Light intensity ∝ 1/distance²
• Why are limiting factors important in greenhouse economics?

  To maximize photosynthesis while making profit
• How do plants use the glucose produced in photosynthesis?

  • Respiration
  • Convert to insoluble starch for storage
  • Produce fat or oil for storage
  • Produce cellulose for cell walls
  • Produce amino acids for protein synthesis