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Questions and Answers
What is the main difference between C3 and C4 plants?
What is the main difference between C3 and C4 plants?
- C3 plants use the Calvin cycle for carbon fixation, while C4 plants use the Crassulacean acid metabolism (CAM) pathway
- C3 plants use the Calvin cycle for carbon fixation, while C4 plants use the Hatch-Slack pathway (correct)
- C3 plants use the Crassulacean acid metabolism (CAM) pathway for carbon fixation, while C4 plants use the Calvin cycle
- C3 plants use the Hatch-Slack pathway for carbon fixation, while C4 plants use the Calvin cycle
In which plant type does the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
In which plant type does the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
- Both C3 and C4 plants
- C4 plants (correct)
- C3 plants
- Neither C3 nor C4 plants
Which type of plant is more efficient in hot and dry conditions?
Which type of plant is more efficient in hot and dry conditions?
- C4 plants (correct)
- Both C3 and C4 plants are inefficient in hot and dry conditions
- C3 plants
- C3 and C4 plants are equally efficient in hot and dry conditions
What is a disadvantage of the C4 pathway compared to the C3 pathway?
What is a disadvantage of the C4 pathway compared to the C3 pathway?
In which type of plant does the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
In which type of plant does the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
What distinguishes C3, C4, and CAM plants from each other?
What distinguishes C3, C4, and CAM plants from each other?
Which type of plant is known for its ability to minimize water loss by opening stomata at night and fixing carbon dioxide into organic acids?
Which type of plant is known for its ability to minimize water loss by opening stomata at night and fixing carbon dioxide into organic acids?
What is a common feature among C3, C4, and CAM plants?
What is a common feature among C3, C4, and CAM plants?
What is the primary advantage of C4 plants over C3 plants?
What is the primary advantage of C4 plants over C3 plants?
In which plants do the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
In which plants do the initial carbon fixation occur in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells?
What is a common feature among C3, C4, and CAM plants?
What is a common feature among C3, C4, and CAM plants?
What distinguishes C3, C4, and CAM plants from each other?
What distinguishes C3, C4, and CAM plants from each other?
Flashcards
C3 vs. C4 Plants
C3 vs. C4 Plants
C3 plants use the Calvin cycle directly, while C4 plants use the Hatch-Slack pathway for initial carbon fixation.
Location of Carbon Fixation in C4 Plants
Location of Carbon Fixation in C4 Plants
C4 plants initially fix carbon in mesophyll cells and then carry out the Calvin cycle in bundle-sheath cells.
Efficiency in Hot, Dry Conditions
Efficiency in Hot, Dry Conditions
C4 plants are more efficient than C3 plants in hot, dry environments due to their specialized carbon fixation pathway.
Disadvantage of C4 Pathway
Disadvantage of C4 Pathway
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CAM Plants
CAM Plants
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Common Feature
Common Feature
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Advantage of C4 Plants
Advantage of C4 Plants
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Distinguishing Feature
Distinguishing Feature
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Study Notes
C3 and C4 Plants
- The main difference between C3 and C4 plants is the initial carbon fixation site: mesophyll cells in C3 plants and mesophyll cells followed by bundle-sheath cells in C4 plants.
C4 Plant Characteristics
- Initial carbon fixation occurs in mesophyll cells, followed by the Calvin cycle in bundle-sheath cells in C4 plants.
- C4 plants are more efficient in hot and dry conditions.
- A disadvantage of the C4 pathway is the higher energy requirement compared to the C3 pathway.
CAM Plants
- CAM (Crassulacean Acid Metabolism) plants are known for minimizing water loss by opening stomata at night and fixing carbon dioxide into organic acids.
Common Features and Differences
- A common feature among C3, C4, and CAM plants is their ability to perform photosynthesis.
- C3, C4, and CAM plants are distinguished by their carbon fixation mechanisms and adaptations to environmental conditions.
- The primary advantage of C4 plants over C3 plants is their increased efficiency in hot and dry conditions.
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