PPT-The cell membrane All cells are surrounded by a thin flexible barrier known as the

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 Bilipid layer This lipid bilayer is made up of two . Learning Objectives. outline the roles of membranes within cells and at the surface of cells. state that plasma (cell surface) membranes are partially permeable barriers. describe, with the aid of diagrams, the fluid mosaic model of membrane structure. . By Dr. . Vani. Gupta. Robert Hooke (mid-600s) observed cell in cork.  Cell  is the basic structural, functional and biological unit . Cell- The smallest unit of life that can replicate independently, and are often called the "building blocks of life". 1. Cilia Organelles. Centrioles Ribosome. Cellulose Lysosome. Nucleus Vacuole. Protein Synthesis Mitochondrion. Autolysis Centrosome. Chromatin Lamella. Cell. Regarded as the basic structural and functional unit of life.. Cell is a mass of cytoplasm enclosed by a plasma membrane consisting of certain organelles besides the nucleus or nuclear material, capable of self replicating.. 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 . O. R. G. A. N. I. Z. A. T. I. O. N. . O. F. L. I. F. E. Cells. Every living thing has at least one cell. . . Some have only one and some have trillions.. Most cells are too tiny to be seen without a microscope.. by tagging. Lesson Title, Essential Question, Objectives. Lesson Title-Cell . Structure and Function. E.Q.: Why is cellular transport important to the function of cell organelles?. Obj.: . Describe the relationship between the structure and function of the cell membrane; Differentiate between the processes of osmosis, diffusion, passive, and active transport; Review for test . For each prepared slide . Draw each cell – remember to draw the field of view and label any structures you know. . Record the magnification of each. Make observations of the cells. Include items such as color, structures, size, etc….. 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. Prokaryotic . Cell. The . term prokaryote is derived from the Greek word- . “prokaryote”. meaning before nuclei. . Prokaryotic . cells are simpler and smaller than the eukaryotic cells. . These cells lack membrane bound organelles. . through cell division. Cells are currently divided into two typ (Before a nucleus): Does not contain a nucleus surrounded by a nuclear membrane or envelope. Contains one or more loops of covalently- 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 . Structure of the algal cell. There are two basic types of cells in the algae, . prokaryotic . and . eukaryotic. . Prokaryotic cells lack membrane-bounded organelles (plastids, mitochondria, nuclei, Golgi bodies, and flagella) and occur in the cyanobacteria (Fig.1).. Cells are Basic to Life . The human body is composed of trillions of cells.. There are about 200 different types of cells. . Each cell turns raw materials from. food . you eat and . air. you breathe into molecules the body needs..