How Photosynthesis Works

29 CQ
5 Lessons
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    7 CQ
    1. Overview of Photosynthesis
    A lesson with Craig Savage
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    Explore light reactions, the Calvin cycle, and the equation for photosynthesis that allows plants to use carbon dioxide and energy from the sun to form glucose.

    Overview of Photosynthesis
    with Craig Savage

    Explore light reactions, the Calvin cycle, and the equation for photosynthesis that allows plants to use carbon dioxide and energy from the sun to form glucose.

  • Playing
    5 CQ
    2. Photosynthesis Light Reactions
    A lesson with Craig Savage
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    This lesson teaches you more about photosynthesis and how plants take energy from the sun to generate ATP, NADPH, and oxygen through light reactions.

    Photosynthesis Light Reactions
    with Craig Savage

    This lesson teaches you more about photosynthesis and how plants take energy from the sun to generate ATP, NADPH, and oxygen through light reactions.

  • Playing
    6 CQ
    3. Chemiosmosis and Photophosphorylation
    A lesson with Craig Savage
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    Learn about the processes that take place during the photosynthesis light reactions, including how chemiosmosis drives the production of ATP.

    Chemiosmosis and Photophosphorylation
    with Craig Savage

    Learn about the processes that take place during the photosynthesis light reactions, including how chemiosmosis drives the production of ATP.

  • Playing
    5 CQ
    4. Photosynthesis and the Calvin Cycle
    A lesson with Craig Savage
    View lesson

    Learn how the Calvin cycle uses the ATP and NADPH formed during the light reactions to generate glucose - fulfilling the ultimate purpose of photosynthesis.

    Photosynthesis and the Calvin Cycle
    with Craig Savage

    Learn how the Calvin cycle uses the ATP and NADPH formed during the light reactions to generate glucose - fulfilling the ultimate purpose of photosynthesis.

  • Playing
    6 CQ
    5. Carbon Fixation Pathways: C4 and CAM
    A lesson with Craig Savage
    View lesson

    Learn how plant physiology affects the efficiency of photosynthesis and how the C4 and CAM pathways address issues like that of photorespiration.

    Carbon Fixation Pathways: C4 and CAM
    with Craig Savage

    Learn how plant physiology affects the efficiency of photosynthesis and how the C4 and CAM pathways address issues like that of photorespiration.

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    11 Comments
    500 characters max

    Michael J
    It was great video, helped me a lot! Thanks, MJ
    appreciate appreciated
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    500 characters max

    Simon B
    CAM pathway video: "Correct" answer that CAM plants use the calvin cycle and C4 do not...?! C4 plants use the calvin cycle, only later on in the bundle-sheath cell, no? The "incorrect" answers are a little misleading - CAM plants do shut their stomata during the day, whereas C4 plants do not [keep them shut during the Entire day]. C4 plants do not Store malate, as they use it in the bundle-sheath cells immediately...
    appreciate appreciated
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    Jenni B
    I agree, the questions & correct answers are a bit confusing in this video
    appreciate appreciated
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    Arielle D
    why can't the C4 leaf access the oxygen?
    appreciate appreciated
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    Laura H
    Very helpful series. Thank you!
    appreciate appreciated
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    Craig Savage
    You are quite welcome
    appreciate appreciated
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    500 characters max

    Danielle Z
    Thank you so much for this series on photosynthesis! It has been so helpful. :)
    appreciate appreciated
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     –  delete

    Craig Savage
    I'm glad it could help
    appreciate appreciated
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     –  delete
    500 characters max