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. -. 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. 8 Lecture – pp 15-128. Lecture Presentations . for Integrated Biology and Skills for Success in Science. Banks, Montoya, Johns, & . Eveslage. Cells and Their Membranes . By the end of the lecture today, students will be able to:. 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.. 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.. 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. primarily . of ______.. DNA. Protein. Carbohydrates. Phospholipids. 2. The . phospholipids in the cell membrane are arranged in a bilayer (double layer). How are the phospholipid molecules arranged in this bilayer?. 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 Much larger than prokaryotic cells having two enveloped systems. True cells occurring in plants and animals . Though they have different shape size and physiology but all cells are typically composed of plasma membrane cytoplasm and its organelles i.e. mitochondria, endoplasmic reticulum . 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.. Lec3/cytology . 2021-2022. By: . MSc. . Farah E. . Ismaeel. Objectives of this lecture. Learn about . . cell . membrane . permeability. . . Learn . about . the ways of molecules transport via cell membrane. .