PPT-7.3 Cell Transport 2006-2007

Function of the Cell Membrane Cell membrane separates the components of a cell from its environment surrounds the cell R egulates the flow of materials into and out of cell selectively permeable. Chapter 2.2. McGraw-Hill Ryerson. Biology 12. (2011). Concentration gradient. Concentration gradient. : difference in concentration between one side of a membrane and the other. Ions and molecules like to move from . by . Vani. Gupta. Types of cell membrane transport. Factors affecting transport. . Cell membrane. Chemical gradient. Electrical gradient. Rate of transport. . Passive transport. Endocytosis, and Exocytosis. Section 3.5. 1. Objectives. SWBAT describe active transport.. SWBAT distinguish among endocytosis, exocytosis, and phagocytosis. . Main Ideas. Proteins can transport materials against a concentration gradient.. (Guyton, 12. th. Ed. (chapter 4): . pg. 45-56) . Dr. . Ayisha. . Qureshi. Assistant Professor, Physiology. ACTIVE TRANSPORT. Definition: . Active . transport is a . carrier-mediated transport wherein . Chapter 3 . The. . Cell:. . Endomembrane. . S. yste. m. –. E. ndoplasmic. . Reticulum,. . G. olgi. Apparatus, Lysosomes. ,. . P. eroxisome. s. ,. V. acuoles. ,. . Vesicles. Overview. Play. ke. & . Movement Across Them . Cell membrane channels. Need to make “doors” through membrane . protein channels allow substances in & out. specific channels allow specific material in & out. multiplication. is the same thing as . division. …. 2006-2007. Making New Cells. Making New DNA. Where it all began…. You started as a cell smaller than . a period at the end of a sentence…. And now look at you…. Warm-Up. What do you know so far about the cell membrane?. What do you want to know about the cell membrane?. Cell Membrane Structure & Function. Phospholipid. Bi-layer . (hydrophilic heads, hydrophobic tails). ,2n=4=28,AABBgenomes)andcommonwheat(T.aestivumL.,2n=6=42,AABBDDgenomes).Historicalepidemicshaveoccurred.Forexample,in1935morethan50%ofthewheatcropsinNorthDakotaandMinnesotawerelostowingtostemrust(Leon VardhanS.Dani,andSachaB.NelsonDepartmentofBiologyandCenterforBehavioralGenomics,BrandeisUniversity,Waltham,Massachusetts02454,andJaneliaFarmResearchCampus,Ashburn,Virginia20147Mutationsinmethyl-CpG-bi MolecularCell,October12,20072007ElsevierInc. expressionbeinglinkedtogenomiclocation,asinthecaseofPEVoftransgenes,orthemajorityoftransposableelementsinthemammaliangenomebeinginactive,orthattransgenesin *Correspondingauthor.E-mailaddress:susan.larson@stonybrook.edu(S.G.Larson).0047-2484/$-seefrontmatter2007ElsevierLtd.Allrightsreserved.doi:10.1016/j.jhevol.2007.06.003 JournalofHumanEvolution53(2007)7 and . Phagocytosis. Undergraduate – Graduate. Histology Lecture . Series. Larry . Johnson, Professor. Veterinary Integrative Biosciences. Texas A&M University. College Station, . TX 77843. VIBS 443 and VIBS 602 . Ms. A. . Fasila. Begum. Assistant Professor. Department of Microbiology. Jamal Mohamed College. Trichy. Introduction. All microbes have a need for three things: carbon, energy, and . electrons.. Nutrients are substances in the environment used by organisms for catabolism and anabolism..