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Questions and Answers
Which process produces oxygen?
Which process produces oxygen?
Photosynthesis
Which set of reactions uses H2O and produces O2?
Which set of reactions uses H2O and produces O2?
The light-dependent reactions
What is the importance of the light-independent reactions in terms of carbon flow in the biosphere?
What is the importance of the light-independent reactions in terms of carbon flow in the biosphere?
The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars.
The light-dependent reactions of photosynthesis use water and produce oxygen.
The light-dependent reactions of photosynthesis use water and produce oxygen.
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Which of the following molecules is the primary product of photosystem I?
Which of the following molecules is the primary product of photosystem I?
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What is the biological significance of the light-independent reactions of photosynthesis?
What is the biological significance of the light-independent reactions of photosynthesis?
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Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis?
Which of the following statements best describes the relationship between the light-dependent and light-independent reactions of photosynthesis?
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Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose?
Which of the following reactions ensures that the Calvin cycle can make a continuous supply of glucose?
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In C3 plants the conservation of water promotes _____
In C3 plants the conservation of water promotes _____
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In C4 and CAM plants carbon dioxide is fixed in the _____ of mesophyll cells.
In C4 and CAM plants carbon dioxide is fixed in the _____ of mesophyll cells.
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C4 plants differ from C3 and CAM plants in that C4 plants _____
C4 plants differ from C3 and CAM plants in that C4 plants _____
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The light reactions of photosynthesis supply the Calvin cycle with
The light reactions of photosynthesis supply the Calvin cycle with
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Which of the following sequences correctly represents the flow of electrons during photosynthesis?
Which of the following sequences correctly represents the flow of electrons during photosynthesis?
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How is photosynthesis similar in C4 plants and CAM plants?
How is photosynthesis similar in C4 plants and CAM plants?
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Which of the following does not occur during the Calvin cycle?
Which of the following does not occur during the Calvin cycle?
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In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____
In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____
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Which of the following is a product of the light reactions of photosynthesis?
Which of the following is a product of the light reactions of photosynthesis?
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The overall function of the Calvin cycle is _____
The overall function of the Calvin cycle is _____
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C4 plants occur more commonly in desert conditions because _____
C4 plants occur more commonly in desert conditions because _____
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What is the basic role of CO2 in photosynthesis?
What is the basic role of CO2 in photosynthesis?
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Select the most accurate statement describing the basic function of the light reactions of photosynthesis.
Select the most accurate statement describing the basic function of the light reactions of photosynthesis.
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Study Notes
Photosynthesis Overview
- Photosynthesis is the process that produces oxygen.
- It occurs in two main stages: light-dependent reactions and light-independent reactions (Calvin cycle).
Light-Dependent Reactions
- Utilize water (H2O) and produce oxygen (O2).
- Supply ATP and NADPH for the light-independent reactions.
- The flow of electrons is: H2O → NADPH → Calvin cycle.
- Key products include oxygen, ATP, and NADPH.
Light-Independent Reactions
- Convert carbon dioxide (CO2) into usable sugars.
- The main biological significance lies in turning CO2 into glucose.
- Regeneration of RuBP ensures a continuous supply of glucose.
- Does not release oxygen as a byproduct.
Types of Photosynthesis
- C3 Plants: Exhibit photorespiration to conserve water.
- C4 Plants: Fix carbon in the cytoplasm of mesophyll cells and transfer it to other cells for the Calvin cycle, enabling adaptation in lower CO2 conditions.
- CAM Plants: Similar to C4 but primarily fix carbon at night.
Importance of CO2
- CO2 is incorporated into organic molecules during photosynthesis.
Electromagnetic Spectrum
- Visible light occurs between ultraviolet and infrared radiation in the electromagnetic spectrum.
Basic Functions
- Light reactions trap light energy and convert solar energy to chemical energy.
- The overall function of the Calvin cycle is to synthesize sugar.
Exam Tips
- Remember key distinctions between C3, C4, and CAM plants regarding carbon fixation.
- Focus on the relationship between light-dependent and light-independent reactions for comprehensive understanding.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your understanding of Chapter 10 in Molecular Biology with these flashcards. Questions include processes like photosynthesis and reactions that produce oxygen. Perfect for reinforcing key concepts and definitions in the chapter.
