Sections 1-2. Prokaryotes bacteria, simple cells no nucleus or membrane bound organelles. ...
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Transcript of Sections 1-2. Prokaryotes bacteria, simple cells no nucleus or membrane bound organelles. ...
![Page 1: Sections 1-2. Prokaryotes bacteria, simple cells no nucleus or membrane bound organelles. Eukaryotes more complex cells. Have nucleus and membrane.](https://reader033.fdocuments.net/reader033/viewer/2022052608/5a4d1b7e7f8b9ab0599ba0bc/html5/thumbnails/1.jpg)
Chapter 7Sections 1-2
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Prokaryotes – bacteria, simple cells no nucleus or membrane bound organelles.
Eukaryotes – more complex cells. Have nucleus and membrane bound organelles.
Prokaryote vs Eukaryote
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a thin membrane that surrounds the cell◦ A) Membrane Lipids – cell membrane is made of
phospholipids, has a polar head and two nonpolar tails
◦ B)Membrane Proteins 1. peripheral proteins – are located on the interior
surface and exterior surface of the cell membrane 2. Integral proteins – proteins that are embedded in
the bilayer
Cell Membrane
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contains the cells genetic information and controls its activities
Nucleus
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convert energy in food to energy that can be used by the cell
Site of cellularrespiration
Mitochondria
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are the place where proteins are assembled
Ribosomes
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assembles some parts of the cell membrane, and acts as a transportation system
Endoplasmic Reticulum
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Rough ER – The rough endoplasmic reticulum manufactures membranes and secretes proteins.
In leukocytes the rough ER produces antibodies. In pancreatic cells the rough ER produces insulin.
The Rough ER
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Smooth ER – has a wide range of functions including carbohydrate and lipid synthesis
In muscles the smooth ER assists in the contraction of muscle cells, and in brain cells it synthesizes male and female hormones.
Smooth ER
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modifies, sorts, and packages materials
Golgi Apparatus
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breaks down the unwanted materials
Lysosomes
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stores water, salts, proteins and carbohydrates
Vacuoles
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converts sunlight into energy that can be used by the cell
Site of photosynthesis
Chloroplast
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support structure that gives the cell its shape
Cytoskeleton