Cell Structures Mr. Skirbst Life Science Topic 04.

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Presentation transcript:

Cell Structures Mr. Skirbst Life Science Topic 04

Cells Cells are the basic building block of all living things and are made up of organelles

Cell Theory Developed through the work of * Hooke * Leeuwenhoek * Schleiden

Cell Theory Three (3) points of theory:

Cell Theory Three (3) points of theory: 1. All living things made of cells

Cell Theory Three (3) points of theory: 1.All living things made of cells 2.Cells are basic unit of life

Cell Theory Three (3) points of theory: 1.All living things made of cells 2.Cells are basic unit of life 3.Living cells come from living cells

Cell Structure There are 10 basic structures inside cells called organelles

Organelles 1. Cell Wall (plants only) * provides support and protection

Organelles 2. Membrane * doorway to the cell

Organelles 3. Nucleus * control center of cell

Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus)

Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus) * chromosomes (these direct activities)

Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus) * chromosomes (these direct activities) * nucleolus (little nucleus)

Organelles 4. Endoplasmic reticulum * transportation system (carries proteins)

Organelles 5. Ribosomes * protein factories

Organelles 6. Mitochondria * powerhouse of the cell

Organelles 7. Vacuoles * storage tanks (food and water)

Organelles 8. Lysosomes * clean-up crew

Organelles 9. Chloroplasts (plants only) * energy producers

Organelles 10. Cytoplasm * jelly-like material inside a cell

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