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
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    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
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    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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    6 Comments
    500 characters max

    Kevin A
    great way of explaining things
    appreciate appreciated
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     –  delete
    500 characters max

    Michael H
    Dear Mr. Savage, I have a hard time studying and understanding my biology textbook. Your videos help understand what my textbook is saying to me. Thank you very much. I have shared your videos with my Biology teacher and she likes it a lot. Thank you, Michael Horbal
    appreciate appreciated
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    Mary B
    H+ & NADP+ & 1e- leaves a net charge of 1+. How is this reconciled?
    appreciate appreciated
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    Craig Savage
    By actually grabbing 2 electrons
    appreciate appreciated
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    500 characters max

    Tyana C
    Is the PC an electron acceptor as well?
    appreciate appreciated
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     –  delete

    Craig Savage
    YEs, it is an intermediate carrier
    appreciate appreciated
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    500 characters max