Lecture2_LipidMembranes.pptx

Lecture2_LipidMembranes.pptx - Chapter 6 Lipids Membranes...

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Chapter 6 Lipids, Membranes, and the First Cells
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Reminders and Important Info You must have your clicker registered before class on Wednesday, or you will start losing participation points. If you use Responseware, you must register that as well. Make sure to sign up for Mastering Biology so you can do homework assignments— first one won’t be due until January 24. If you have an accommodation letter, please be sure to get that to me. Reponsware ID: 682319
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Preassessment results 0-10 10-20 20-30 30-40 40-50 50-60 60-70 0 20 40 60 80 100 120 140 Number
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Cell Membranes Today we are going to start talking about the cell membrane.
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Cell Membranes The cell membrane helps to separate the cell interior from the outside environment. It serves as a selective barrier keeping damaging compounds out and bringing the reactants needed for life closer together.
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Cell Membranes The foundation of cell membranes are lipids. Lipids are carbon-containing compounds that are largely nonpolar and hydrophobic.
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Cell Membranes Lipids are hydrophobic because of their large hydrocarbon component.
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Cell Membranes The type of carbon-carbon bond present can affect lipid structure.
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