Cell Structures Mr. Skirbst Life Science Topic 04.
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Transcript of Cell Structures Mr. Skirbst Life Science Topic 04.
Cell Structures
Mr. SkirbstLife 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 TheoryThree (3) points of theory:
Cell TheoryThree (3) points of theory:1. All living things made of
cells
Cell TheoryThree (3) points of theory:1. All living things made of cells2. Cells are basic unit of life
Cell TheoryThree (3) points of theory:1. All living things made of cells2. Cells are basic unit of life3. Living cells come from living
cells
Cell Structure
There are 10 basic structuresinside cells called organelles
Organelles1. Cell Wall (plants only)
* provides support and protection
Organelles2. Membrane
* doorway to the cell
Organelles3. Nucleus
* control center of cell
Organelles3. Nucleus (found inside are): * nuclear membrane
(doorway to the nucleus)
Organelles3. Nucleus (found inside are): * nuclear membrane
(doorway to the nucleus) * chromosomes (these direct activities)
Organelles3. Nucleus (found inside are): * nuclear membrane
(doorway to the nucleus) * chromosomes (these direct activities) * nucleolus (little nucleus)
Organelles4. Endoplasmic reticulum
* transportation system (carries proteins)
Organelles5. Ribosomes
* protein factories
Organelles6. Mitochondria
* powerhouse of the cell
Organelles7. Vacuoles
* storage tanks (food and water)
Organelles8. Lysosomes
* clean-up crew
Organelles9. Chloroplasts (plants only)
* energy producers
Organelles10. Cytoplasm
* jelly-like material inside a cell