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A. Cell wall
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B. Cytoskeleton
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C. Cytoplasm
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D. Cell membrane
Explanation
The cytoskeleton is a network of protein fibers that runs throughout the cytoplasm of a cell.
It provides structural support, maintains cell shape, and is involved in various cellular processes like movement and organelle positioning.
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A. Spindle fiber
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B. Cilia and flagella
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C. Microfilament
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D. Centriole
Explanation
Cilia and flagella have a characteristic "9+2" arrangement of microtubules: nine outer pairs and two central single tubules.
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A. Golgi apparatus
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B. Transfer RNA
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C. Cyclosis
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D. Endoplasmic streaming movements c
Explanation
The active movement of mitochondria in the cytoplasm is due to cyclosis, also known as cytoplasmic streaming.
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