Biology - Cell structure

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问题 English 答案 English
What is the difference between eukaryotic and prokaryotic cells?
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Eukaryotic cells have a nucleus and membrane-bound organelles. Prokaryotic cells don’t.
What are the 5 sub-cellular structures found in animal cells?
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Nucleus, cytoplasm, cell membrane, mitochondria, ribosomes
What are 3 extra structures that are found in plant cells?
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Cell wall, chloroplasts, permanent vacuole
What is the function of the nucleus?
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Contains genetic material (DNA) and controls activities of the cell
What is the function of the cell membrane?
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Controls movement of substances in and out of the cell
What is the function of the cytoplasm?
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Where most chemical reactions take place
What is the function of mitochondria?
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Site of aerobic respiration
What is the function of ribosomes?
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Site of the protein synthesis
What is the function of the cell wall?
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Strengthens and supports the cell
What is the function of chloroplast?
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Site of photosynthesis
What is the function of permanent vacuole?
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Contains cell sap and helps keep the cell rigid
Give an example of a prokaryote
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Bacteria
Name 3 structures found in bacterial cells
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Cytoplasm, cell membranes, ribosomes
What is plasmid DNA?
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Small rings of extra DNA found in bacteria
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