BIOLOGY- photosynthesis

Cards (23)

  • What is the process that plants use to trap light energy?
    Photosynthesis
  • What type of reaction is photosynthesis?
    Endothermic reaction
  • From what does a seedling derive its energy to grow?
    Light energy trapped by photosynthesis
  • Where does photosynthesis take place in a plant?
    In the leaves
  • What green chemical in leaves absorbs light energy?
    Chlorophyll
  • What are the inputs for photosynthesis?
    Carbon dioxide and water
  • What is produced as a result of photosynthesis?
    Glucose and oxygen
  • What is the word equation for photosynthesis?
    Carbon dioxide + water → glucose + oxygen
  • What is the chemical formula for carbon dioxide?
    CO<sub>2</sub>
  • What is the chemical formula for water?
    H<sub>2</sub>O
  • What is the chemical formula for glucose?
    C<sub>6</sub>H<sub>12</sub>O<sub>6</sub>
  • What is the chemical formula for oxygen?
    O<sub>2</sub>
  • What happens to the rate of photosynthesis when light intensity is increased?
    The rate of photosynthesis increases
  • What does it indicate if increasing light intensity increases the rate of photosynthesis?
    Light intensity was a limiting factor
  • What happens when light intensity is increased beyond a certain point?
    The rate of photosynthesis levels off
  • What is the limiting factor when light intensity is no longer increasing the rate of photosynthesis?
    Carbon dioxide level
  • What happens to the rate of photosynthesis when carbon dioxide levels are increased?
    The rate of photosynthesis increases
  • What does it indicate if increasing carbon dioxide levels increases the rate of photosynthesis?
    Carbon dioxide was a limiting factor
  • What are two other factors that can affect the rate of photosynthesis?
    Amount of chlorophyll and temperature
  • How does temperature affect the enzymes involved in photosynthesis?
    Higher temperatures increase enzyme activity
  • What happens to enzymes if the temperature continues to increase?
    They denature and the rate falls
  • What are the main stages of photosynthesis?
    1. Light absorption by chlorophyll
    2. Conversion of carbon dioxide and water into glucose
    3. Production of oxygen
  • What factors affect the rate of photosynthesis?
    • Light intensity
    • Carbon dioxide level
    • Amount of chlorophyll
    • Temperature