Questions and Answers
Put the following statements about photosynthesis in order by numbering 1-6:
- Chlorophyll absorbs light energy = 1
- Electrons increase an energy level = 2
- Electrons enter an electron transport chain = 3
- ATP and NADPH are formed = 4
- ATP and NADPH are used to drive reactions in the Calvin cycle = 5
- Glucose is formed = 6
What is significant to the chloroplast?
Where photosynthesis takes place.
Label the chloroplast below: __________, __________, __________, __________, __________, __________.
Outer membrane, Granum, Lumen, Thylakoid discs, Stroma, Inner membrane.
Which part of the chloroplast do light reactions take place?
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Which part of the chloroplast do dark (light-independent) reactions take place?
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What is the most common pigment found within the chloroplast?
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____________ are specialized structures that absorb light.
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What is an excited electron?
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What goes into the electron transport chain?
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What comes out of the electron transport chain?
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Describe what happens during photosynthesis:
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What molecule does the plant make during photosynthesis and cannot use, so it is released into the atmosphere?
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Which atmospheric molecule do plants absorb and use to make glucose?
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What are ATP and NADPH used for during the dark reactions?
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What is the purpose of the Calvin cycle?
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Order the items in 'the energy train' photosynthesis energy flow:
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Study Notes
Overview of Photosynthesis
- Photosynthesis occurs in chloroplasts where sunlight energy is converted into chemical energy.
- Chlorophyll is the primary pigment responsible for absorbing light energy.
Process of Photosynthesis
- Light reactions occur in thylakoid membranes, where chlorophyll absorbs light energy.
- Excited electrons from chlorophyll increase energy levels and enter an electron transport chain.
- This process produces ATP and NADPH, which are essential for driving the Calvin cycle.
- The Calvin cycle takes place in the stroma and converts carbon dioxide and water into glucose.
Key Components
- Glucose formation is the ultimate goal of photosynthesis, while oxygen is produced as a byproduct.
- Chlorophyll a is the most common pigment found in chloroplasts, vital for light absorption.
- Specialized structures known as chloroplasts enhance the process of light absorption.
Electron Transport Chain
- Inputs to the electron transport chain include 10 NADH and 2 FADH2.
- The outputs from this chain include a significant production of 34 ATP.
Additional Notes
- Sunlight, chloroplasts, and chlorophyll play key roles in energy flow during photosynthesis.
- The Calvin cycle's function is to convert carbon dioxide and water into glucose utilizing ATP and NADPH.
- Carbon dioxide is absorbed by plants to produce glucose, while oxygen is released back into the atmosphere.
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Description
Test your understanding of the photosynthesis process with these flashcards. Arrange the steps involved and explore the significance of chloroplasts. Perfect for students studying biology and plant sciences.
