PPT-A&P: The Cell The Plasma Membrane

How was it discovered http edtedcom lessonsinsightsintocellmembranesviadishdetergentethanperlsteinwatch The Plasma Membrane What is the plasma membrane Flexible sturdy barrier of the cell. Membrane. . by . Dr.Vani. Gupta. Cell Membrane. cell membrane is the boundary. separate cell from its environment . All cells have a cell membrane made of . -. Gateway to the Cell. 2. Photograph of a Cell Membrane. 3. Cell Membrane. The cell membrane is . flexible. and allows a . unicellular. organism to . move. 4. Homeostasis. Balanced. internal condition of cells. Plasma membrane, nucleus and ribosomes. Figure 4.7a. CYTOSKELETON:. NUCLEUS. ENDOPLASMIC RETICULUM (ER). Smooth ER. Rough ER. Flagellum. Centrosome. Microfilaments. Intermediate. filaments. Microvilli. Plasma membrane, nucleus and ribosomes. What to Know . The structure and function of the plasma membrane, nucleus and ribosomes.. Figure 4.5. 0.1 . . m. (a) TEM of a plasma. membrane. Outside of cell. Chapter 5 Part 2. 5.5 Membrane Trafficking. By processes of endocytosis and exocytosis, vesicles help cells take in and expel particles that are too big for transport proteins, as well as substances in bulk. Section 7.1 Summary – pages 171-174. The . cell theory. . is made up of three main ideas:. All cells come from preexisting cells.. The cell is the basic unit of organization of organisms.. Structure. Main component is phospholipids that are arranged in a double layer (. bilayer. ). Has scattered proteins within the phospholipids. Regulate what enters/leaves cell. Function . Nucleus. Structure. Kumar . Saha. Dept. of Zoology. Rajshahi. University. Physiology of Plasma membrane. :. The plasma membrane acts as a thin barrier which separates the intracellular fluid or the cytoplasm from extracellular fluid in which the cell live.. The plasma membrane is a SELECTIVELY PERMEABLE membrane that allows nutrients and wastes to enter and exit the cell. Homeostasis: maintaining balance in the cell. The Plasma Membrane. Selective Permeability – allows some molecules to pass through and keeps others out. Plasma membranes :. Membranes. cover the surface of every cell and also surround most organelles within cells. They have a number of functions, such as:. keeping all cellular components inside the cell. Inclusion Body. Nucleoid. Mesosome. Cell Wall. Nucleus. Mitochondrion. Rough Endoplasmic Reticulum. Plasma Membrane. PROKARYOTIC CELL. Ribosome. Plasma Membrane. Inclusion Body. Nucleoid. Mesosome. Cell Wall. Presented by. Dr . Sanjoy. Deka. PLASMA MEMBRANE OR CELLMEMBRANE. Points to be discussed…. Nature of plasma membrane. Movement of substances across plasma membrane. Diffusion and osmosis. Hypotonic, isotonic and hypertonic solution. Module 1: Components a nd Architecture o f Cell Membrane Learning objectives: In this module, prime focus is mainly on the plasma membrane, however, majority of the concepts discussed below are also S.J. Singer and Garth L. Nicolson proposed the fluid mosaic model , which is widely used.. The fluid mosaic model of the plasma membrane structure describes the plasma membrane as a fluid combination of phospholipids, cholesterol, proteins, and carbohydrates..