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Cells, you would be nothing without them!
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Animal OR Plant?
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Animal OR Plant?
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The Cell Theory 1. All living things are made of cells.
2. Cells are the basic unit of structure & function of living things. 3. Living cells come only from other cells.
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What’s inside a cell? ORGANELLE: a structure in a cell.
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CELL MEMBRANE: controls what enters and leaves the cell; it surrounds the cell.
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CYTOPLASM: allows materials to move through the cell; it is jelly like & contains many dissolved materials (oxygen, food, waste, etc)
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MITOCHONDRIA: produces the cell’s energy; it’s the site of cellular respiration, where food is combined with oxygen to release energy: Power House Food + Oxygen --> Chemical Energy + Carbon Dioxide.
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NUCLEUS: controls the cell’s activities; usually found in the cell’s center & usually darker than the rest of the cell; it contains all the genetic information (DNA), which hold the directions for what the cell must do.
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VACUOLE: stores materials for the cell; is usually MUCH bigger in plant cells.
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Plant Vacuoles are huge.
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CELL WALL: supports and gives shape to plant cells; a rigid, non-living structure made of complex starch (cell walls are a major source of fiber).
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CHLOROPLAST: converts sun light to food in plant cells (photosynthesis); Light Energy + Carbon Dioxide --> Food + Oxygen
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Complex cells = more organelles
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LYSOSOME: digests food particles and wastes; can also digest cell parts and foreign invaders.
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RIBOSOME: makes proteins for the cell; tiny dot like structures .
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ENDOPLASMIC RETICULUM: allows materials to move through the cell; looks like flattened, folded pods.
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NUCLEAR MEMBRANE: controls what enters and leaves the nucleus.
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NUCLEOLUS: stores materials for the ribosomes; small, dark spot that may be seen in the nucleus; looks like a nucleus inside the nucleus.
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GOLGI APPARATUS: packages materials for transport; the Golgi apparatus receives chemicals from the endoplasmic reticulum.
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