Chapter 8 Cell Structure and Function

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Cell theory

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All living things are made up of cells.

Cells are the basic units of structure and function in living things.

New cells are produced from existing cells.

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cells

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Basic unit of life

Front

How do microscopes work?

Back

Lenses are used to magnify the image of an object by focusing light or electrons.

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cell membrane

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The thin flexible barrier that surrounds the cell.

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Nucleus

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Large membrane-enclosed structure that contains genetic material in the form of DNA.

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Eukaryotes

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Cells that enclose their DNA in nuclei.

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Prokaryotes

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Cells that do not contain nuclei.

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How are prokaryotic and eukaryotic cells the same?

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They both have DNA, Cell membrane, Cytoplasm, Ribosomes.

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How are prokaryotic and eukaryotic cells different?

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Prokaryotic cells do not separate their genetic material within a nucleus.

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Anton VanLeeuwenhoek

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First to observe living organisms.