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Do Now Brainstorm: Where does life come from?.

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Presentation on theme: "Do Now Brainstorm: Where does life come from?."— Presentation transcript:

1 Do Now Brainstorm: Where does life come from?

2 The Cell Theory All living things are made up of cells
Cells only arise from pre-existing cells. The cell is the basic unit of life.

3 Robert Hooke Was the first to use the term cell.
Looked at cork cells under the compound microscope.

4 Prokaryote Have no formed nucleus Are unicellular
Are very disorganized. Do not have membrane bound organelles. Bacteria are prokaryotes

5 Eukaryote Have a Nucleus Have membrane bound organelles
Are very organized. Can be uni/ or multicellular. Ex.- animal, plant cells.

6

7 The Cell Membrane Controls movements into and out of the cell
Is semi-permeable, or selectively permeable. Is made of a phospho-lipid bi-layer. Helps maintain the shape of the cell.

8 Cytoplasm Jelly-like material which contains materials involved in cell metabolism. Gives the cell its shape

9 The Nucleus and The Nucleolus
Serves as the control center of the cell and contains DNA. Nucleolus- Contains RNA Nuclear membrane – Control what goes in or out of the Nucleus.

10 Chromosomes Contains code that guides all cell activities
They are found in the nucleus. Chromosomes contain the genes that determine an organisms charateristics.

11 Endoplasmic Reticulum
Transports materials throughout the cell. Rough ER contains Ribosomes. Smooth ER has no Ribosomes Transports materials throughout the cell.

12 Ribosomes Sites of protein synthesis

13 Golgi Bodies Packages and secretes the proteins made by the Ribosomes.
Look like stacks of pancakes.

14 Mitochondria Power House of The Cell. Makes ATP

15 The Centrioles Involved in cell division
Produce Microtubules that pull chromosomes apart. Microtubules also give the cell structure. Are found inside the nucleus.

16 Lysosomes Powerful chemicals that break things down.

17 Vacuoles Plays a role in intercellular digestion Store food and water.
Are much larger in plant cells.


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