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Kunwar Navdeep Singh Ranawat Bachelor Of Pharmacy (2007-2011) 5 years of teaching experience Faculty of Physical Geography, Science & Technology, Environment &Ecology, Daily MCQs, Current Affairs, Reasoning, Computer Hobbies: Readin, Debuting& Teaching Please do d, Rate, Review & Recommend Enrol the Course Follow me on unacademy at unacadem https://unacademy.com/user/ navdeepsranawat-1975
Cell Organelles Presented By: Kunwar Navdeep Singh
Introduction: Cell Organelle is a specialized subunit within a cell that has a specific function. Individual organelles are separately enclosed within their own lipid bilayers. In plant and Animal Cell some organelle are same while some are different.
Plant Cell: vacuole cell wall cell membrane mitochondrion nucleus cytoplasm chloroplast vacuole
Animal Cell: vacuole cell membrane nucleolus nuclear membranenucleus material cytoplasm mitochondria DNA
Cell Wall A cell wall is an outer layer surrounding certain cells that is outside of the cell membrane. . It can be tough, flexible, and sometimes rigid. . It provides the cell with both structural support and protection, and also acts as a filtering mechanism.
Cell Wall It is the accumulation of dead cell .The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicelluloses and pectin. Cell wall mostly present in prokaryotes (except mycoplasma bacteria), in algae, plants and fungi but rarely in other eukaryotes including animals. .
Cell Membrane: The cell membrane ( plasma membrane or cytoplasmic membrane).thickness of cell membrane is measured in angstrom (10-10 it is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment. . . it is selectively permeable via a membrane to ions and organic molecules.
Fluid Mosaic Model: The fluid mosaic model was devised by SJ Singer and GL Nicolson in 1972 which explains various observations regarding the structure of functional cell membranes. . According to this model, there is a lipid bilayer in which the protein molecules are embedded. The lipid bilayer gives fluidity and elasticity to the membrane. Small amounts of carbohydrates are also found in cell membrane. .
Cytosol: The cytosol is the portion of the cytoplasm not contained within membrane-bound organelles. Cytosol makes up about 70% of the cell volume. The term cytosol is now used to refer to the liquid phase of the cytoplasm in an intact cell. . . . Protein molecules that do not bind to cell membranes or the cytoskeleton are dissolved in the cytosol. The amount of protein in cells is extremely high, and approaches 200 mg/ml, occupying about 20-30% of the volume of the cytosol.
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