Questions and Answers
What is a thylakoid?
What are grana?
Stacks of thylakoids in the chloroplast
What is the function of the inner membrane in mitochondria?
It is the site of electron transport and chemiosmosis.
What forms the boundary between the mitochondrion and cytoplasm?
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What is the intermembrane space?
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What is the stroma?
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Study Notes
Chloroplast Structure and Function
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Thylakoid:
- Flattened membrane sacs within chloroplasts.
- Essential for converting light energy into chemical energy during photosynthesis.
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Grana:
- Stacked structures of thylakoid membranes.
- Play a crucial role in the light-dependent reactions of photosynthesis.
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Inner Membrane:
- Encloses the mitochondrial matrix.
- Site for electron transport and chemiosmosis, facilitating ATP production.
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Outer Membrane:
- Forms a boundary between mitochondria and the cytoplasm.
- Smooth structure that defines the inner membrane space.
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Intermembrane Space:
- The fluid-filled area between the inner and outer membranes of mitochondria (and chloroplasts).
- Important for nucleotide phosphorylation processes.
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Stroma:
- Liquid matrix surrounding the thylakoids in chloroplasts.
- Site for synthesis of organic molecules from carbon dioxide and water through the Calvin cycle.
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Description
Explore the essential components of chloroplasts with these flashcards. Learn about thylakoids, grana, and the inner membrane's role in photosynthesis. A great resource for understanding plant cell structures.
