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7.1 Photosynthetic Organisms
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- Plants, algae, and cyanobacteria are photosynthetic organisms that produce most of the carbohydrate used as an energy source by the living world
- In flowering plants, photosynthesis takes place within chloroplasts, organelles that contain membranous thylakoids surrounded by a fluid called stroma
| - Photosynthesis in flowering plants occurs in which organelle?
Answer - Pigments, which absorb solar energy, are located in the ______________ membranes of a chloroplast.
Answer
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Summaries of major points:- Organisms depend upon photosynthesis
Lab exercises
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7.2 Plants as Solar Energy Converters
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- Plants make use of solar energy in the visible light range when they carry on photosynthesis
- Photosynthesis has two sets of reactions: solar energy is captured by the pigments in thylakoids, and carbon dioxide is reduced by enzymes in the stroma.
| - Give the function of pigments and list the three most commonly found in plants.
Answer - During photosynthesis, _______________ is reduced and _______________ is oxidized.
Answer - Where, specifically, do light reactions occur and, generally, what happens?
Answer - The Calvin cycle occurs in the ___________ where ______________ is reduced to carbohydrate
Answer - Where do the ATP required for the reduction of carbon dioxide come from?
Answer
| Essential Study Partner
Summaries of major points:- Solar radiation
- Key discoveries of photosynthetic process
- Structure of chloroplasts
- Function of chloroplasts
Labeling Exercises
Art Quizzes
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7.3 Light Reactions
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- Solar energy energizes electrons and permits a buildup of ATP and NADPH molecules.
| - What does a photosystem consist of?
Answer - During the noncyclic electron pathway, what is the source of the oxygen released?
Answer - What molecule finally accepts the electrons that passed through the noncyclic electron pathway?
Answer - What molecules are produced by the cyclic electron pathway?
Answer - Where does the energy used in chemiosmosis come from and for what is it used?
Answer
| Essential Study Partner
Summaries of major points:- Light-dependent reactions
- Electron pathways
- ATP production
- The thylakoid membranes
Art Quizzes
Animation Quizzes
Study Guides
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7.4 Calvin Cycle Reactions
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- Carbon dioxide reduction requires ATP and NADPH from the light reactions.
| - The Calvin Cycle uses ______________ to produce _______________.
Answer - Does the Calvin Cycle use or produce ATP?
Answer
| Essential Study Partner
Summaries of major points:- Light-independent reactions
- The importance of PGAL
- The Calvin cycle
Art Quizzes
Animation Quizzes
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7.5 Other Types of Photosynthesis
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- Plants use C3, or C4, or CAM photosynthesis, which are distinguished by the manner in which CO2 is fixed.
| - What is the cause of photorespriation in plants?
Answer - Which is more adapted to hot, dry climates, C3 or C4 plants and why?
Answer - What type of plants use CAM photosynthesis and in what sort of habitat are they found?
Answer
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Summaries of major points:- Modes of photosynthesis
Art Quizzes
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