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 chloroplasts
    • What pigment in chloroplasts absorbs light?
      Chlorophyll
    • What does chlorophyll absorb from the environment?
      Light energy
    • What are the reactants in the photosynthesis equation?
      Carbon dioxide and water
    • What is the chemical equation for photosynthesis?
      6 CO<sub>2</sub> + 6 H<sub>2</sub>O → C<sub>6</sub>H<sub>12</sub>O<sub>6</sub> + 6 O<sub>2</sub>
    • 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 does energy transfer occur in photosynthesis?
      From the environment to chloroplasts by light
    • How does carbon dioxide enter the leaves?
      Through the stomata
    • How is water transported to the leaves?
      Via the xylem
    • What is the main product that plants want from photosynthesis?
      Glucose
    • What do plants sometimes use oxygen for?
      For respiration
    • What is one way glucose is used by plants?
      For cellular respiration
    • What are the five main uses of glucose in plants?
      • Cellular respiration
      • Making cellulose
      • Making starch
      • Making amino acids
      • Making oils and fats
    • 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 a better form of glucose for storage?
      It is more compact and insoluble
    • When do plants typically break down starch to glucose?
      When photosynthesis isn't happening much
    • How do plants make amino acids?
      By combining glucose with nitrate ions
    • What is the final use of glucose mentioned for plants?
      Making oils and fats
    • What factors affect the rate of photosynthesis?
      Light intensity, temperature, CO<sub>2</sub> concentration, chlorophyll amount
    • What will be explored in the next video?
      Factors affecting the rate of photosynthesis
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