4.1

• What is the overall equation for photosynthesis?

  Carbon dioxide + water → glucose + oxygen
• What does CO2 stand for?

  Carbon dioxide
• What does H2O represent?

  Water
• What is the chemical formula for glucose?

  C6H12O6
• What does the inverse square law state regarding light intensity?

  Light intensity decreases with the square of the distance from the source
• What are the limiting factors of photosynthesis?

  Temperature, light intensity, carbon dioxide concentration, and amount of chlorophyll
• How can higher light intensity affect temperature in the context of photosynthesis?

  A higher light intensity can lead to a higher temperature
• How can knowledge of limiting factors improve crop yield?

  It helps make farming more efficient
• What is one use of glucose produced in photosynthesis?

  Used in respiration
• How is glucose used to produce proteins?

  Combined with nitrates from soil to produce amino acids
• What is cellulose produced from glucose used for?

  To form cell walls
• In what form is glucose stored in plants?

  As starch
• What is another use of glucose in plants besides respiration?

  To produce fats/oils for storage
• How can the rate of photosynthesis be controlled?

  Using a greenhouse
• What is the relationship between light intensity and distance in photosynthesis?

  Light intensity is inversely proportional to the square of the distance
• What type of reaction is photosynthesis classified as?

  Endothermic
• What happens to the rate of photosynthesis when a limiting factor is increased?

  The rate of photosynthesis increases