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Unit 3: Cells. The basic building block of life. A. Cell Theory Discovery of the _________ allows scientists to first view cells. How big are cells? SMALL - ________ (large plant cells) _______ (small bacteria). 1. Time Line and People of the Cell Theory a.___________________ –
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Unit 3: Cells The basic building block of life
A. Cell Theory Discovery of the _________ allows scientists to first view cells. How big are cells? SMALL - ________ (large plant cells) _______ (small bacteria)
1. Time Line and People of the Cell Theory a.___________________ – 1600’s in Holland Discovered ________________ and blood cells through high power simple microscopes.
b. _______________ – English scientist in the 1665 Looked at _______ under the microscope _____________________
d. _______________ - 1838 Germany “_____________ were composed of cells” e. _______________ - 1839 Germany “____________ were composed of cell.”
2. Cell Theory a. All organisms are ______________________________ Multicellular or Unicellular b. The cell is the _______________________ / structure of organisms. ____________ happens within a cell All cells carry on ___________________________ c. Cells come from __________________ cells. Belief that life started as single cells and evolved over millions of years.
3. Exceptions to the Cell Theory a. ___________ Small and not made of cells, but has the ability to perform life functions b. Where did the __________ come from? _____________________ life comes from inanimate objects
B. Types of Cells 1.______________ – Prokaryotes - cells that _________________ with membranes - _____________, but they do have DNA - __________ in size, less complex - ex: bacteria and blue-green algae
2. ________________ – Eukaryotes - cells containing __________________ (organelles) surrounded by membranes (have membrane bound organelles) - _____________ and other organelles for specialized chemical reactions - these are the cells you are familiar with because ______________________. - _________________ - ex: protists, fungus, plants, animal cells
C. Cell Organelles (Organelle = “small tool”; perform life functions) 1. ____________ = nuclei (pl) round membrane bound structure ____________ for metabolism and reproduction if removed cell dies contains ________
2. ______________ __________ material in the cell site for many _________________
3. ______________________ = system of fluid filled canals enclosed by membranes - serve as paths for the ____________ of materials - rough or smooth appearance; __________ make it rough
4. ______________ = small particles sites of ________________ lots of them
5. ____________ stacks of ___________________ (pancakes) processing, ___________________ centers
6. _____________ fluid filled membranous sacs ____________________________ Vessicle = small vacuole 7. ____________ specialized vacuole contain strong __________________ White blood cells have lysosomes that break down bacteria
8. _______________ round, oval shaped organelles site for ________________ release energy in food molecules makes ________ Cellular Respiration: • ADP ATP High Energy Bond • Make energy for the cell • C6H12O6 + 6 O236 ATP + 6 H2O + 6 CO2
9. ________________ contain _____________ pigment = catches light site for photosynthesis only in plant cells a. Photosynthesis: Conversion of light energy into a useable form for the cell. 6 CO2 + 6 H2O + Light C6H12O6 + 6 O2 Photosynthesis and Respiration are opposite formulas
10. _____________ protein rod pairs that are at 90 degrees to each other only in ____________ involved in cell division (mitosis). 11. Cilia and Flagella ________________ used for moving the cell flagella are larger; cilia are usually smaller and more plentiful.
12. ____________ located outside the membrane gives shape and provides support Not in Animal Cells.
13. ________________ = plasma membrane a. separates cells from its surroundings - like the skin - makes it possible for the inside of the cell to be _____________________ than the outside b. two layered structure composed of ________ and ________ fluid mosaic model = proteins and lipids move around proteins on outside act as receptors (pick up info) c. Maintains homeostasis by controlling the ________ of materials into and out of the cell.
