PPT-Cell membrane transport

Lec3cytology 20212022 By MSc Farah E Ismaeel Objectives of this lecture Learn about cell membrane permeability Learn about the ways of molecules transport via cell membrane . 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.. Group 2- Cell Development. Gladys Alexandre, Cristina Calestani, John Koontz, Silvia Moreno, Brian Ring, William Said. Context: Principles of Biology I (BIOL 1107); >250 students (freshman level). Movement of materials through a membrane . against a . concentration. gradient. and . requires . energy. from the cell. (. ATP. ). Low. Concentration .  . High. Concentration. Carrier proteins. Cell Membrane and Cell Wall:. . ALL. . cells have a . cell membrane. made of . proteins. and . lipids. . Cell Membrane. lipid bilayer. protein channel. protein . pump. Layer 1. Layer 2. SOME. cells have cell membranes . Essential idea: Membranes control the composition of cells by active and passive transport.. The . background image is . a piece of artwork inspired by the complexity of an . E. Coli. . Complexity in cell structure is much . Pratt & . Cornely. , Ch. 9. Thermodynamics. Membrane potential—volts. For +1 ion, potential = 0.058V(log. ). If potential is negative, the inside of cell is more negative.  . Energetics of Transport. Cell Membrane. .. The cell membrane . Controls. what comes out and . in of the cell. . It also provides protection.. The composition is a double layered sheet called a . Bi-lipid layer. .. This lipid bi-layer is made up of two . The Nucleus: the gene-containing control center of the cell.. The nucleus is bound by a double membrane called the . nuclear envelope. . . Inside the nucleus are one or more small, dark-staining, essentially round structures called . HONORS BIOLOGY. 1. What . cell organelles/structures. are involved with protein production, packaging, transporting, and excretion from the cell?. Nucleus → rough endoplasmic reticulum . → Golgi apparatus → vesicle → cell membrane. 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. What is the plasma membrane?. A flexible boundary between the cell and its environment which maintains . HOMEOSTASIS. within the cell. **Remember that . HOMEOSTASIS. is a state of balance/equilibrium within the cell.. 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..