Dr._Wilson_Set_2_1A.09

Dr._Wilson_Set_2_1A.09 - Eukaryotes Are either unicellular...

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Eukaryotes Are either unicellular or multicellular • (most protists, fungi such as yeast, are unicellular)
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Eukaryotic Cells and Organisms Are unicellular or multicellular Cells are usually larger than prokaryotes (eukaryotic cells are 10 times to 100 times larger than prokaryotic cells)
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Eukaryotic Cells and Organisms Are unicellular or multicellular • Are large compared with prokaryotes • Have a nucleus—bound by a nuclear envelope
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Figure 4.7 Eukaryotic Cells—Animal Cells (Part 1)
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Eukaryotic Cells and Organisms Are unicellular or multicellular • Are large compared with prokaryotes • Have a nucleus—bound by a nuclear envelope • Have s complex cytoplasm containing many internal organelles
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Figure 4.7 Eukaryotic Cells—Animal Cells (Part 1)
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Eukaryotic Cells and Organisms • Are unicellular or multicellular • Are large compared with prokaryotes • Have a nucleus—bound by a nuclear envelope • Have many internal cytoplasmic organelles • Have a cytoskeleton
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Figure 4.7 Eukaryotic Cells—Animal Cells (Part 1)
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Eukaryotic Cells and Organisms Are unicellular or multicellular • Are large compared with prokaryotes • Have a nucleus—bound by a nuclear envelope • Have many internal cytoplasmic organelles • Have a cytoskeleton Have a complex endomembrane system
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Figure 4.7 Eukaryotic Cells—Animal Cells (Part 1)
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Figure 4.7 Eukaryotic Cells—Plant Cells (Part 4)
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The Nucleus Large (human cells, ~ 5 μm) —contains most of the cell’s DNA This is 5 times the size of an entire prokaryote. In some cells it takes up more than half of the cell’s total volume
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Figure 4.8 The Nucleus is Enclosed by a Double Membrane (Part 1)
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The Nucleus Large—contains most of the cell’s DNA Bounded by a double membrane—called the nuclear envelope and has and a strong meshwork called the nuclear lamina just inside the envelope
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The Nuclear Lamina (electron micrograph)
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The Nucleus Large—contains most of the cell’s DNA Bound by a double membrane—called the
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Dr._Wilson_Set_2_1A.09 - Eukaryotes Are either unicellular...

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