Photosynthesis

    Cards (22)

    • 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 the chloroplasts
    • What pigment in chloroplasts absorbs light for photosynthesis?
      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 using symbols?
      6 CO<sub>2</sub> + 6 H<sub>2</sub>OC<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 to take place
    • What type of reaction is photosynthesis classified as?

      An endothermic reaction
    • How does energy transfer occur in photosynthesis?

      Energy is transferred from the environment to chloroplasts by light
    • How does carbon dioxide enter the leaves of a plant?

      Through the stomata
    • How is water transported to the leaves of a plant?
      By the xylem
    • What is the primary product that plants want from photosynthesis?

      Glucose
    • What do plants sometimes use the oxygen produced in photosynthesis for?

      For respiration
    • Why is glucose considered essential for plants?

      It is used for energy and various biosynthetic processes
    • What are the five main uses of glucose in plants?
      • Cellular respiration for energy
      • Synthesis of cellulose for cell walls
      • Formation of starch for long-term storage
      • Production of amino acids with nitrate ions
      • Synthesis of oils and fats for energy storage
    • How does glucose function like a battery for plants?

      It stores energy that can be released when needed
    • What is cellulose made from?

      Many glucose molecules combined together
    • Why is starch a better form of glucose for long-term storage?

      It is more compact and insoluble
    • When do plants typically break down stored starch to glucose?

      When photosynthesis isn't happening much, like at night or in winter
    • How do plants make amino acids?

      By combining glucose molecules with nitrate ions
    • What is the final use of glucose mentioned in the material?

      Making oils and fats for energy storage
    • What factors affect the rate of photosynthesis?

      • Light intensity
      • Temperature
      • Carbon dioxide concentration
      • Amount of chlorophyll
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