'Low solute concentration' diaporamas de présentation

Chapter 5 The Human Body

Chapter 5 The Human Body. Objectives. There are no 1985 objectives for this chapter. Introduction. Anatomy The study of structures and components of an organism Physiology The study of the body functions of a living organism Pathophysiology

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Lecture 2A

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Mass Percentage, ppm, and ppb Definitions:

Ways of Expressing Concentration. Mass Percentage, ppm, and ppb Definitions:. Example: How would you prepare 425 g of an aqueous solution containing 2.40% by mass of sodium acetate, NaC 2 H 3 O 3 ?. Ans: Mass of NaC 2 H 3 O 3 = 10.2 g

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Topic 2.4: Cell Membranes

Topic 2.4: Cell Membranes. Functions of a plasma membrane :. http://www.youtube.com/watch?v=00PPPt7EJqo. The Fluid Mosaic Model What is a fluid? What is a Mosaic? What is a model?. The fluid mosaic model tells us:.

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Topic 2.4: Cell Membranes

Topic 2.4: Cell Membranes. Functions of a plasma membrane: Hold the cell together Control what go in and comes out (diffusion, osmosis, active transport) Protect the cell Allow the cell to recognize and be recognized (cell signaling and immunity) Bind to other cells and molecules

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Water and Osmotic Regulation

Water and Osmotic Regulation. Chapter 8. Water Balance and Concentration. Internal Environment = aqueous solution Volume and composition must be maintained within narrow limits Composition different from external environment

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Surface and Interfacial Phenomena

Surface and Interfacial Phenomena. Surface is a boundary between solid or liquid phase and a vacuum. Interface is a boundary between two phases. Surface free energy is the work required to increase the area of the surface by 1cm2.

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Chapter 13

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Water and its relation to Diffusion and Osmosis

Water and its relation to Diffusion and Osmosis. What is Diffusion?. Diffusion is the natural tendency of molecules to flow from higher concentrations to lower concentrations of solute particles until the concentration is the same on both sides of the membrane. Diffusion across a Membrane.

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Plant Responses to Temperature

Plant Responses to Temperature. Chapter 10; p322. Plants surviving heat. Plants and Energy. Plants receive a lot of energy from the sun, but only use about 1% of it. They generally maintain a constant internal temperature and regulate their temperature through: Radiation Transpiration

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Cell Membrane

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CH 5: Cell Membranes

CH 5: Cell Membranes. Practice Test answers. The movement of a substance toward an area of lower concentration is called ________. diffusion osmosis active transport exocytosis. Which component in the cell membrane restricts the passage of water-soluble substances?. glycolipids protein

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Transport in Plants

Transport in Plants. Seatwork. Read pages 531-534. SR #1-7 Remainder of the lesson covers section 9.5. Review of Diffusion. Diffusion: natural tendency for particles to move from areas of high concentration to low concentration (concentration gradient). Review of Osmosis.

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Membranes

Membranes. Mrs. Ragsdale Bio SL. Parts of the Cell Membrane. Phospholipid Bilayer Phospholipids arranged in a bilayer with polar, hydrophilic heads facing outwards and nonpolar tails fatty acid tails facing each other.

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Chapter 2

Chapter 2. Structure and Function of Cells. Looking at cells. Living cells can be classified into 2 different kinds: Prokaryotic cells Eukaryotic cells All cells have an outer boundary known as the plasma membrane (or cell membrane).

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Traffic Across Membranes

Traffic Across Membranes. Factors that Affect the Transport of Molecules Across a Membrane. Charge of the molecule (cation-positive AND anion-negative) Size of the pores/holes in the membrane Concentration of molecules inside and outside the cell Temperature Available proteins.

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Osmosis & Diffusion Ms. Simms Biology

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Traffic Across Membranes

Traffic Across Membranes. Factors that Affect the Transport of Molecules Across a Membrane. Charge of the molecule (cation-positive AND anion-negative) Size of the pores/holes in the membrane Concentration of molecules inside and outside the cell Temperature Available proteins.

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13.5 Colligative Properties

13.5 Colligative Properties. Charles Jie, Brendan Buckbee, Rajeen Amin, and Chris Swisher. Some Basics. Electrolytes dissolve in solution, Nonelecrolytes do not. Thus, electrolytes dissolved in water would ideally have twice as many particles dissolved in solution as nonelectrolytes.

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Dialysis: A Thermodynamic Perspective

Dialysis: A Thermodynamic Perspective. Alyssa Chang, Austin Dosch, Meredith Greeson , Carrie Martin, Bobby Palmer. The Kidney History of Dialysis Thermodynamics of Dialysis Chemical potential ( ? ), Affinity, and Gibbs-Free Energy Osmosis & Osmotic Pressure Entropy. Objectives.

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