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Organnels Of a Cell

Organnels are various structures adopted to perform various functions In a cell.There can be Identified many different types of organnels performing specific functions.Those types of organnels are described below.

Nucleus


 * Controls all the activities of the cell.
 * The largest organ in a cell.
 * Covered with 2 membranes.
 * Nucleolus and Chromatic Fibres being Inside of the nucleus.
 * Chromatic Fibres are essential factors hereditary factors for next generation.

Mitochondria


 * Mostly oval shape organnel.
 * Sorrounded by 2 membranes.
 * The inner membrane being folded to increase the surface area.
 * Energy is produced through respiration which supplies energy to all activities in a cell.Therefore it is known as the Power House Of The Cell.

Golgi Body


 * Flattened plates.
 * Each plate is sorrounded by a membrane.
 * Vesicles are budded at the 2 ends of the golgy body.
 * Act as a transport system,mainly distributes protein and lipids.

Endoplasmic Reticulum(ER)

i)RER-Rough Endoplasmic Reticulum.                       (Attached Ribosome)                     ii)SER-Smooth Endoplasmic Reticulum. *Sorrounded by only one membrane. *Main function are protein synthesis and transports.
 * Endoplasmic Reticulum takes 2 forms

Lysosoms


 * A membrane bound sac.
 * Contains digestive enzymes.
 * Digestive enzymes breakdown complex molecules in a cell.
 * Each lysosom is sorrounded by a membrane.
 * Lysosom help to clean the cell,hence it is called the Scavanger Of the cell.

Chloroplast


 * Sorrounded by 2 membranes.
 * Chloroplast is present only in plant cells.
 * Photosynthesis takes place in chloroplast.
 * Grannas are present which contain green pigments called Chlorophyll A and chlorophyll B.
 * Other Pigments in Choloroplast are called Karotin and Xanthophills.
 * DNA and starch grains are present in Chloroplast.

Vacoule


 * Vacoule is only present in plant cells.
 * Sorrounded by a membrane called Tonoplast.
 * The liquid available in a vacoule is known as Cell Sap which is maily consisted with water and mineral salt.

Cytoplasm


 * The Cytoplasm is a jelly-like medium.
 * High percentage of cytoplasm contain water.
 * All organnels are embedded in this Cytoplasm.

Cell Membrane


 * This is the outermost structure of the cell which seperates the cell from its environment.
 * The cell membrane is a thin permeable structure which helps to filter the entering and exiting materials.

Please note that this article is mostly suitable for Middle school student rather than university students s this is defined in a very simple and easy way.