'Integral proteins' diaporamas de présentation

Unit 3

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Cells

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Chapter 8

Chapter 8. CELL: THE UNIT OF LIFE. G N RAMACHANDRAN (1922--2001). Keralite, from Cochin Outstanding figure in the field of protein structure Founder of Madras School. cell. Basic Unit of Life--functional structure and fundamental unit. Multicellular. Unicellular. Anton Van Leeuwenhoek-

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FLUID MOSAIC MODEL

FLUID MOSAIC MODEL. FLUID MOSAIC MODEL. Model describing structure of the cell membrane Model says cell membrane is not solid, fluid. Has the consistency of olive oil. FUNCTIONS OF PLASMA MEMBRANE. FUNCTIONS OF PLASMA MEMBRANE.

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Cell Processes

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1.3 Membrane Structure

1.3 Membrane Structure. Essential idea: The structure of biological membranes makes them fluid and dynamic. Above are models of a plasma membrane showing how it's fluidity allows lipid soluble molecules to move directly through the membrane. By Chris Paine https :// bioknowledgy.weebly.com /.

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1.3 Membrane Structure

1.3 Membrane Structure. Essential idea: The structure of biological membranes makes them fluid and dynamic. Above are models of a plasma membrane showing how it's fluidity allows lipid soluble molecules to move directly through the membrane. By Chris Paine https :// bioknowledgy.weebly.com /.

713 views • 25 slides

1.3 Membrane Structure

1.3 Membrane Structure. Essential idea: The structure of biological membranes makes them fluid and dynamic. Above are models of a plasma membrane showing how it's fluidity allows lipid soluble molecules to move directly through the membrane. By Chris Paine https :// bioknowledgy.weebly.com /.

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Cell Boundaries

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Membrane structure & function

Membrane structure & function. Integral proteins. Can have any number of transmembrane segments Multiple transmembrane segments: often small molecule transport. Transport example: Bacteriorhodopsin. Proton pump: establish H + gradient Subsequent ATP generation

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The Cellular Level of Organization

A. Generalized animal cell B. Plasma (cell) membrane 1. Membrane chemistry and anatomy a. Membrane lipids b. Membrane proteins 2. Membrane physiology a. Communication b. Electrochemical gradient

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Membrane Structure and Function

Chapter 7. Membrane Structure and Function. Cell/Plasma Membrane. Selectively permeable and amphipathic some substances can pass easily (hydrophobic/ nonpolar ) hydrocarbons, CO2, O2 other substances cannot pass easily (hydrophilic/polar)

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Cell Membrane and Tonicity Worksheet

Cell Membrane and Tonicity Worksheet. Composition of the Cell Membrane. The cell membrane is also called the plasma membrane and is made of a phospholipid bilayer . . Composition of the Cell Membrane. Composition of the Cell Membrane.

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Plasma Membrane (Chap. 5) Structure

Plasma Membrane (Chap. 5) Structure. http://home.earthlink.net/~shalpine/anim/Life/memb.htm. Thickness of 7-8nm Primarily made up of phospholipids (Fig. 5.2 in text) Have different types of proteins and cholesterol dispersed between the phospholipids.

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MEMBRANE STRUCTURE AND FUNCTION

MEMBRANE STRUCTURE AND FUNCTION. Membrane Structure Chapter 7. Objectives. Be able to describe the structure of a membrane Be familiar with the structure and function of the lipid, protein, and carbohydrate components of a membrane Be familiar with the formation of a membrane.

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MEMBRANE STRUCTURE AND FUNCTION

MEMBRANE STRUCTURE AND FUNCTION. Membrane Structure. Objectives. Be able to describe the structure of a membrane Be familiar with the structure and function of the lipid, protein, and carbohydrate components of a membrane Be familiar with the formation of a membrane. Membrane Structure.

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Ch. 4- Membrane Structure & Function

Ch. 4- Membrane Structure & Function. Ch. 4.1- Plasma Membrane Structure & Function. Target #1- I can identify the functions of the plasma membrane. Define boundaries and serve as permeability barriers Keeps desirable substances in and undesirable substances out

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Cellular Organelles: How is structure related to function?

Cellular Organelles: How is structure related to function?. Plasma Membrane. Structures: Phospholipid bilayer Integral Proteins Glycolipids Peripheral Proteins Functions Control what enters and leaves Identifies the cell. Nucleus. Structures: Nuclear Envelope Membrane Pores

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Cell Membranes

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