Limiting the rate of photosynthesis - Higher

• What process do plants use to make their own food?

  Photosynthesis
• Why is the food produced by plants important?

  It is important for the plants themselves and for other organisms that feed on them
• What is the law of limiting factors in photosynthesis?

  • Each factor affecting photosynthesis does not work in isolation
  • Several factors may interact
  • Any one of them can be limiting the rate of photosynthesis
• How do light intensity and carbon dioxide concentration interact in photosynthesis?

  They can both limit the rate of photosynthesis when increased
• What happens to the rate of photosynthesis when carbon dioxide concentration is increased?

  The rate of photosynthesis increases until another factor becomes limiting
• What effect does increasing temperature have on the rate of photosynthesis?

  The rate can increase further until another factor becomes limiting
• What does the graph showing the effect of temperature as a limiting factor indicate?

  • It shows the effect at two different carbon dioxide concentrations
  • The rate of photosynthesis increases until a limiting factor is reached
  • Further increases in temperature can lead to another limiting factor
• What is the relationship between light intensity and the rate of photosynthesis?

  The rate of photosynthesis increases with light intensity until a limiting factor is reached
• What is the significance of the term "limiting factor" in the context of photosynthesis?

  A limiting factor is any condition that can restrict the rate of photosynthesis
• How can multiple factors interact to affect photosynthesis?

  Multiple factors can combine to limit the rate of photosynthesis at different times