Podcast
Questions and Answers
What is the primary function of the thylakoids within a chloroplast?
What is the primary function of the thylakoids within a chloroplast?
What do the grana consist of in the chloroplast?
What do the grana consist of in the chloroplast?
Which component of the chloroplast contains the thylakoid lumen?
Which component of the chloroplast contains the thylakoid lumen?
How many chloroplasts can typically be found in a single mesophyll cell?
How many chloroplasts can typically be found in a single mesophyll cell?
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What structure surrounds the central aqueous space of the chloroplast?
What structure surrounds the central aqueous space of the chloroplast?
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Study Notes
Plant Cell Structure - Chloroplasts
- A mesophyll cell has 30-40 chloroplasts, 2-4 by 4-7 microns.Each chloroplast is enclosed by two membranes surrounding a central aqueous space.
- Inside this space, called the stroma, there are membranous sacs known as thylakoids.
- Thylakoids have an internal aqueous space, also known as the thylakoid lumen or thylakoid space.
- Thylakoids can be stacked into columns called grana.
Chloroplast Structure
- Chloroplasts have a double membrane structure.
- The stroma is the central aqueous space within a chloroplast.
- Thylakoid sacs are membranous sacs within the chloroplast stroma.
- Grana are stacks of thylakoid sacs.
Chlorophyll and Electron Transport Chain (ETC)
- The chlorophyll and electron transport chain (ETC) are located within the thylakoid membrane.
- An H+ gradient is generated within the thylakoid sac.
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Description
This quiz covers the structure and function of chloroplasts in plant cells. You will explore the roles of the stroma, thylakoids, and grana, as well as the importance of chlorophyll and the electron transport chain. Test your knowledge of plant cell organelles with this focused quiz.
