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Levels of Cellular Organization

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Presentation on theme: "Levels of Cellular Organization"— Presentation transcript:

1 Levels of Cellular Organization

2 Multi-cellular Organisms
Multi-cellular – Organisms made of more than one cell. Specialized cells work together to make tissues, organs, and organ systems.

3 Unicellular Organisms
Unicellular: One celled organism. They must perform all activities within one cell. NO TISSUES, ORGANS, OR SYSTEMS!!

4 Unicellular vs. Multicellular
Similar Carry on all characteristics of life. Have the same MAIN cell parts as multi-cellular organisms. Mitochondria, vacuole, ER, nucleus, ribosomes, chloroplast, Golgi bodies, etc. Except nucleus in Arachebacteria and Eubacteria Different Cells in multi-cellular organisms have a specific job. Unicellular organism must carry on all characteristics of life in one cell. 2. Multi-cellular organisms have tissues, organs, and organ systems. Unicellular organisms DO NOT.

5 Prokaryotic and Eukaryotic Cells

6 Which Organelle is Missing?

7 The Nucleus: What’s so Special?
membrane enclosed organelle found in eukaryotic cells. contains most of the cell's genetic material (DNA) for reproduction The function of the nucleus is to control the cells protein production

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9 Lost and Found Project P. 6 in Science notebook
Concept: Unicellular vs. Multicellular Must include the differences between prokaryotic and eukaryotic cells Must describe the function of the nucleus Paragraphs are to be on the back of poster

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