Photosynthesis

Cards (23)

  • What is the main 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 the photosynthesis reaction?
    Carbon dioxide and water
  • What is produced as a byproduct of photosynthesis?
    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 next limiting factor after light intensity?
    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 is one factor that can affect the rate of photosynthesis?
    The amount of chlorophyll in the leaf
  • How does temperature affect the enzymes involved in photosynthesis?
    Higher temperatures increase enzyme activity
  • What happens to enzymes at very high temperatures?
    They denature and activity falls
  • What are the factors that affect the rate of photosynthesis?
    • Light intensity
    • Carbon dioxide level
    • Amount of chlorophyll
    • Temperature
  • What is the overall process of photosynthesis?
    1. Light energy is absorbed by chlorophyll
    2. Carbon dioxide and water are taken in
    3. Glucose and oxygen are produced