photosynthesis

Cards (23)

  • What process must a plant carry out to grow and survive?
    Photosynthesis
  • Where does photosynthesis take place in a plant?
    In the leaves, specifically in chloroplasts
  • What pigment in chloroplasts absorbs light?
    Chlorophyll
  • What does chlorophyll absorb from the environment?
    Light energy
  • What are the reactants used in photosynthesis?
    Carbon dioxide and water
  • What is the chemical equation for photosynthesis?
    6 CO2 + 6 H2O → C6H12O6 + 6 O2
  • Why is light written above the reaction line in the photosynthesis equation?
    Because the reaction requires light energy
  • What type of reaction is photosynthesis classified as?
    Endothermic reaction
  • How is energy transferred to chloroplasts during photosynthesis?
    By light from the environment
  • How does carbon dioxide enter the leaves?
    Through the stomata
  • How is water transported to the leaves?
    Via the xylem
  • What is the primary product that plants want from photosynthesis?
    Glucose
  • What do plants sometimes use oxygen for?
    For respiration
  • Why is glucose considered essential for plants?
    It is used for energy and growth
  • What are the five main uses of glucose in plants?
    • Cellular respiration for energy
    • Making cellulose for cell walls
    • Forming starch for long-term storage
    • Producing amino acids with nitrate ions
    • Creating oils and fats for energy storage
  • How does glucose function like a battery for plants?
    It stores energy that can be released
  • What is cellulose made from?
    Combined glucose molecules
  • Why is starch used for long-term storage in plants?
    It is compact and insoluble
  • When do plants typically break down starch to glucose?
    When photosynthesis is low, like at night
  • How do plants make amino acids?
    By combining glucose with nitrate ions
  • What do plants use amino acids to create?
    Proteins
  • Why are oils and fats important for seeds?

    They serve as future energy resources
  • What factors affect the rate of photosynthesis?
    Light intensity, temperature, CO2 concentration, chlorophyll