'Facilitated diffusion' presentation slideshows

Lecture 3a.

Lecture 3a. Membranes and Transport. The Cell Membrane. Overview: Membranes. Structure of cell membranes Functions of cell membranes How things get in and out of cells. What is a membrane?. Basically, a covering. Structure of the cell membrane.

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II. CELLS

II. CELLS. Quick write (10 points) If you go from one cell (at conception) to 10 14 cells (as an adult), does this violate the 2 nd law of Thermodynamics? Explain. Chapter Goals (cells structure). After studying this chapter, students should be able to

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Cellular Transport

Cellular Transport. What property allows the cell membrane to maintain homeostasis?. Cell membranes are selectively permeable: they let some molecules in and keep other molecules out. Weeee!!!. high. low. This is gonna be hard work!!. high. low. Two Types of Cellular Transport.

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3

3. Cells: The Living Units: Part A. Cell Theory. The cell is the smallest structural and functional living unit Organismal functions depend on individual and collective cell functions Biochemical activities of cells are dictated by their specific subcellular structures

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AP Bio November 12-13 CHPs 2-5 Test debrief P 5: finish Microscopy Primer P5: Inner Life of Cell Microscopy

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Unit 3A Human Form & Function

Unit 3A Human Form & Function. Cells, metabolism & regulation Cellular Activity. Some useful websites for Cell Biology. http://www.bscb.org/?url=softcell/centrioles http://biology.tutorvista.com/animal-and-plant-cells/centrioles.html. The cell membrane. Drawing by Mariana Ruiz Villarreal.

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Transport Across the Cell Membrane

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7-3: Cell Boundaries

7-3: Cell Boundaries. CELL MEMBRANE The cell membrane regulates what enters and also leaves the cell and also provides protection and support. The cell membrane is made up of two phospholipid layers called a lipid bilayer.

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Cell Membrane Transport Notes

Cell Membrane Transport Notes. July 15, 2014. I.) Types of Cell Membrane Transport. There are 2 types of cell membrane transport: Passive Transport Does not require energy Things flow from High to low Active Transport Requires energy Ex- - Things flow from low to high

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Transport in cells

Transport in cells. Bell ringer: How do things get in an out of a cell?. Balloon Observations. Observe the balloon on your table. Write down what you notice about these balloons. Remember, observations use ALL senses. ? . Balloon Observations. How could you smell what was inside the balloon?.

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Transport and Bacterial Cells Uptake of Nutrients and Key molecules

Transport and Bacterial Cells Uptake of Nutrients and Key molecules. Microbiology 2008. What molecules are needed by the cell. Carbon source( CO2, CH4, organic molecules) Nitrogen source( nitrogen compounds) amino acids , ammonia or ammonium Energy source. Passive Transport.

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Understanding How the Cell Operates (organelles)

Understanding How the Cell Operates (organelles). Cell membrane. Key molecules Phospholipid bilayer Transport proteins Carbohydrates Cholesterol. Cell Membrane Animation. The membrane. Why is it Fluid? Why is it Mosaic? . Key Function of the Membrane. Helps to maintain homeostasis :

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Cell Membrane

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Fluid Mosaic Model

Fluid Mosaic Model. Membrane Structure. Phospholipid Bilayer. Fluidity. Membrane Structure. Proteins. Protein Functions. Membrane Structure. Carbohydrates. Glycoproteins Glycolipids. Diffusion. Osmosis. Water Balance. Water Balance. Facilitated Diffusion. Active Transport.

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Membrane Structure & Function

Membrane Structure & Function. Membrane Models. 1972- Present Fluid-Mosaic Model. 1935-1970 Sandwich Model. Membrane Transport (Passive). 1. 2. Glucose, amino acids. Diffusion. Steepness of concentration gradient Temperature Mass of diffusing substance Surface area

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Chapter 7

Chapter 7. Membrane Structure & Function. Membrane Structure, I. Shows Selective permeability Known as the plasma membrane Amphipathic - hydrophobic & hydrophilic regions Singer-Nicolson developed the fluid mosaic model. Membrane Structure, II. Phospholipids - membrane fluidity

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Passive vs. Active Transport

Passive vs. Active Transport. Passive Transport. Does NOT require energy Moves substances from higher to lower concentration. Types of Passive Transport. Diffusion - movement of any type of particle from high concentration to low concentration. Types of Passive Transport.

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Cell Transport

Cell Transport. Journal Notes. How do cells move things in and out?. Passive Transport- No energy is required from the cell. -- Examples: Diffusion Osmosis Facilitated Diffusion Passive Transport occurs when there is an imbalance of particles in an area. Facilitated Diffusion.

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3.4 Diffusion and Osmosis

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FACILITATED DIFFUSION

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