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Cell Theory

Cell Theory. All organisms are made of one or more cells. The cell is the basic unit of all living things. All cells come from existing cells. Cell membrane & Cytoplasm. Cell membrane - protective barrier that encloses a cell. Cytoplasm - fluid inside of cell. Nucleus.

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Cell Theory

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  1. Cell Theory • All organisms are made of one or more cells. • The cell is the basic unit of all living things. • All cells come from existing cells.

  2. Cell membrane & Cytoplasm Cell membrane- protective barrier that encloses a cell. Cytoplasm- fluid inside of cell

  3. Nucleus Nucleus- Contains the cell’s DNA. Nucleolus- dark area inside the nucleus that begins to make ribosomes

  4. Endoplasmic Reticulum Endoplasmic Reticulum (ER)- system of folded membranes in which proteins, lipid and other materials are transported to other parts of the cell. Rough Endoplasmic Reticulum- Close to nucleus has ribosomes on it Smooth Endoplasmic Reticulum- lacks ribosomes

  5. Ribosomes Ribosomes- organelle that makes proteins -smallest organelle

  6. Mitochondria Mitochondria- The organelle in which sugar is broken down to produce energy. (ATP) “The mighty mitochondria”Powerhouse of the cell

  7. Golgi Complex Golgi Complex-membrane that surrounds (packages) substances inside the cells so it can move around the cell.

  8. Lysosomes Lysosomes- Organelle that digests food particles, waste, damaged cell parts, & foreign invaders

  9. Vacuoles Vacuoles- Stores water and other liquids

  10. Organelles found in plant cells Cell wall & Chloroplast Cell wall-rigid structure that supports the cell Chloroplast- organelle which uses the energy from the sun, water & CO2 to make sugar & O2

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