Podcast
Questions and Answers
What is the location of the light reaction in photosynthesis?
What is the location of the light reaction in photosynthesis?
Where do dark reactions occur during photosynthesis?
Where do dark reactions occur during photosynthesis?
Sunlight and Water (H2O) are needed to start the light reaction.
Sunlight and Water (H2O) are needed to start the light reaction.
True
What energy products are made by the light reactions?
What energy products are made by the light reactions?
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What molecule provides the hydrogens needed to make glucose?
What molecule provides the hydrogens needed to make glucose?
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What is one of the products of photosynthesis?
What is one of the products of photosynthesis?
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The organelle responsible for photosynthesis is the ______.
The organelle responsible for photosynthesis is the ______.
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The product of photosynthesis made in the dark reaction is ______.
The product of photosynthesis made in the dark reaction is ______.
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What is generated in the light reaction to be used in the dark reaction?
What is generated in the light reaction to be used in the dark reaction?
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Carbon Dioxide (CO2) is one of the reactants of which process?
Carbon Dioxide (CO2) is one of the reactants of which process?
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Study Notes
Photosynthesis Overview
- Photosynthesis occurs within chloroplasts, specifically utilizing two main reactions: light reactions and dark reactions (Calvin cycle).
Light Reaction
- Takes place in the thylakoid membranes of chloroplasts.
- Requires sunlight and water (H2O) as substrates.
- Produces ATP and NADPH as high-energy carriers.
- Generates oxygen (O2) as a byproduct, which is released into the atmosphere.
Dark Reaction (Calvin Cycle)
- Occurs in the stroma of chloroplasts.
- Uses ATP and NADPH from the light reactions to convert carbon dioxide (CO2) into glucose.
- Glucose is the main product of photosynthesis.
Key Components
- Thylakoid: Site of light reactions, where light energy is converted to chemical energy.
- Stroma: Fluid-filled space surrounding thylakoids, where dark reactions occur.
- ATP: Energy currency produced during light reactions, utilized in the dark reactions.
- NADPH: Electron carrier providing hydrogen for glucose synthesis, formed during light reactions.
- Carbon Dioxide (CO2): Essential reactant for the photosynthesis process, absorbed from the atmosphere.
- Oxygen (O2): A vital product generated in light reactions, important for aerobic life forms.
- Chloroplast: The specialized organelle responsible for conducting photosynthesis in plant cells.
- Glucose: Final product of photosynthesis, serves as energy source for plants and other organisms.
Studying That Suits You
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Description
Test your knowledge of the photosynthesis process with this flow chart quiz. Focus on key terms such as light reaction, dark reaction, and their respective locations. Perfect for students learning about plant biology!
