'Concentration gradient' diaporamas de présentation

Basic Electronics

Basic Electronics. Need to know. Definition of basic electrical paramater A set of rules for elementary circuit analysis The means of current flow in circuits with capacitance. Electrical Parameters. Potential Difference (V or E). Charges.

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Membrane potentials

Membrane potentials. Huan Ma ????? PhD Department of Physiology Room 515, Block C, Research Building School of Medicine, Zijingang Campus Email: mah@zju.edu.cn Tel: 88208068. OUTLINE. Resting potential Graded potential Action potential Refractory period. Electrocardiogram ECG.

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Composition and Movement within the membrane

Membrane Dynamics. Composition and Movement within the membrane. Components of the Membrane. Extracellular environment. Carbohydrate. Glycolipid. Phospholipid bilayer. Glycoprotein. Transmembrane (or Integral) protein. Extracellular leaflet. Cytosolic

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Membrane Transport

Membrane Transport. Passive Transport Moves from high to low concentration Does not require energy. 3) Diffusion Movement of small & polar/nonpolar particles across bilayer. Bilayer is permeable to the particle. O 2 CO 2 Glycerol. No transport proteins are required.

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Bioequivalence Assessment of three 0.025% tretinoin gel products: Dermatopharmacokinetic vs. Clinical Trial Methods

Bioequivalence Assessment of three 0.025% tretinoin gel products: Dermatopharmacokinetic vs. Clinical Trial Methods. Lynn K. Pershing, Ph.D. Department of Dermatology University of Utah Salt Lake City, UT 84132. Common Goal Best Therapeutic Products. Physicians. FDA. Generic Industry.

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Lesson 6 - Structure and Signaling

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Cellular Transport

Cellular Transport. The movement of materials in and out of cells Ch 8. Cellular Transport. What substances move ? How do they move? What is the membrane structure? What is passive versus active transport ?. Solution Concentration :. Like density = # molecules per

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Chapter 18 Lipids

Chapter 18 Lipids. 18.5 Glycerophospholipids 18.6 Sphingolipids 18.7 Steroids: Cholesterol, Bile Salts, and Steroid Hormones 18.8 Cell Membranes. Glycerophospholipids. Glycerophospholipids are: The most abundant lipids in cell membranes.

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Cellular Functions

Cellular Functions. Biology Agriculture. Movement of Materials. Diffusion Osmosis Passive Transport Active Transport Hypotonic Solution. Hypertonic Solution Isotonic Solution Endocytosis Exocytosis. Group Assignment. What is the function?

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Contaminant Transport

Contaminant Transport. CIVE 7332 Lecture 3. Transport Processes. Advection The process by which solutes are transported by the bulk of motion of the flowing ground water. Nonreactive solutes are carried at an average rate equal to the average linear velocity of the water.

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Movement Through the Cell Membrane

Movement Through the Cell Membrane. Important Vocabulary. Concentration gradient : Difference in concentration from one location to another. Equilibrium : both sides of the cell membrane have equal concentration. Concentration. Hypertonic : solution with a higher concentration.

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Solute Mass Transfer in CRRT Garred et al., AJKD 1997

Post-Dilution CVVH. CVVHD. Q r. Q b. Q b. Q eff. Q eff. Q d. Q r. Q r. Q b. Q b. Q eff. Q eff. Q d. Pre-Dilution CVVH. CVVHDF. Solute Mass Transfer in CRRT Garred et al., AJKD 1997. Mechanisms of Solute Removal: IHD vs CRRT Clark and Ronco, Kidney Int 1998. IHD CRRT

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Contractile vacuole Movie

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Cell Membrane

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5.14 Passive transport is diffusion across a membrane

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In active transport, energy is used to move a solute against its concentration gradient.

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Cell Membranes and Transport

Cell Membranes and Transport. Getting material in and out of cells. Transport. Getting material in and out of cells Can be broken into two categories. Passive Transport. Movement of material in/out of cells CELL USES NO ENERGY TO DO SO Diffusion: (From Hi ? Lo)

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Water regulation in the kidney

Water regulation in the kidney. The loop of Henle. The descending limb of the loop of Henle is permeable to water The ascending limb is impermeable. Na + and Cl - ions are actively transported out of the ascending limb and passively move into the descending limb.

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3.5 Active Transport, Endocytosis, and Exocytosis

3.5 Active Transport, Endocytosis, and Exocytosis. KEY CONCEPT Cells use energy to transport materials that cannot diffuse across a membrane. 3.5 Active Transport, Endocytosis, and Exocytosis.

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