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cell organelles and membranes powerpoint
cell organelles and membranes powerpoint

...  Solid rods built from twisted actin chains (smallest)  Function  Bears tension ...
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... 17. A SODIUM-_POTASSION_ PUMP uses ATP to move three Na+ ions out of a cell while it moves two K+ ions in. ...
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... with some proteins extending from one side of the membrane to another and some proteins are embedded only half-way  Proteins are utilized for both PASSIVE AND ACTIVE TRANSPORT  Carbohydrate chains are located on the outer surface of the membrane. If they are attached to phospholipids they are know ...
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... with some proteins extending from one side of the membrane to another and some proteins are embedded only half-way  Proteins are utilized for both PASSIVE AND ACTIVE TRANSPORT  Carbohydrate chains are located on the outer surface of the membrane. If they are attached to phospholipids they are know ...
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Click here for the Study Guide Key

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Honors Biology Unit 2 Study Guide: Biochemistry

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Cell Theory and Cell Structure

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Cell theory states: living things are composed of one or
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... Schleiden and Schwann proposed spontaneous generation as the method for cell origination, but spontaneous generation (also called abiogenesis) was later disproven. Rudolf Virchow famously stated "Omnis cellula e cellula"... "All cells only arise from pre-existing cells. "The parts of the theory that ...
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... • Materials external to the plasma membrane provide protection, support, and attachment for cells in multicellular systems. • Cell walls of plants consist principally of cellulose embedded in other polysaccharides and proteins forming multiple layers layers. • They are pierced by plasmodesmata that ...
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how cells multiply, madison 2011

... • Module: Cell Biology, two-week (6 lectures) teachable unit on cell cycle • First class of the unit • What do students know already? Nucleotides, DNA, chromosomes, and organelles • Students will learn about the cell cycle. ...
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Extracellular matrix



In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).
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