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Chapter 3 The electric cellular Level of Organization Pages 64 78 1. Parts of a jail cell: Fig.3.1 -100 trillion cells in body -Smallest vitality unit cell -Smallest non-living unit atom -200 stress types of cells A. Plasma Membrane -Phospholipid bi animation level B. Cytoplasm -Region bound by plasma membrane -Excludes nucleus C. Nucleus -Nuclear envelope -nucleolus -Ribosome assembly -Chromatin -Protein packages deoxyribonucleic panelling into chromosomes 2. The Plasma Membrane: Fig. 3.2 -Fluid mosaic model -Not rigid -Consistency of olive oil A. The Lipid Bi mould -Imbedded proteins and cholesterin i. Phospholipids -Bilayer ii. Cholesterol -Determine permeability -Determine rigidity -More cholesterin more rigid iii. iv. Glycolipids -Sugar group wedded directly to lipids -Only on bulge out of doors layer B. Arrangement of Membrane Proteins i. constitutive(a) Proteins -Difficult to remove from membrane -Most ar trans membrane proteins ii. Transmembrane Proteins -Extend across both layers -Channels -Receptors iii. fringy Proteins -On the surface proteins -Linked to lipids or underlie proteins -Easily removable iv.

Glycoproteins -Glucose chains attached to proteins -Most are trans membrane -2 to 60 monomers -Outside only v. Glycocalyx -Glycoproteins form the glycocalyx -Slippery layer on the outside of the cell -Cell identification -Cell to cell attachment B. Functions of Membrane Proteins: Fig. 3.3 i. Ion Channels -Integral protein -Na+, K+ -Large range in muscle abridgment and nerve impulses -Most are ad hoc to one ion ii. Carriers -Some are glamour proteins -Allow substances to move in iii. Receptors -Recognize a expound ligand -Alters cell function in some way -Viruses get into cells by binding to receptors iv. Enzymes -Can be constitutive(a) or...If you want to get a full essay, order it on our website: Ordercustompaper.com

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