cell

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by Priyansha
Last updated 8 years ago

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Discipline:
Science
Subject:
Biology
Grade:
9

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cell

A Cell is made of cell membrane,Cell wall,Nucleus,Cytoplasma and Cell organelles like Endoplamsic Reticulum,Golgi,Lysosomes,Mitochondria,Plastids, Vacuoles.

The cell was 1st discovered in 1665 by Robert Hooke.

CELL MEMBRANE:Outermost covering of the cell and is the most selectively permeable membrane.CELL WALL:Additional outer covering present only in plants.Nucleus:Plays a crucial role in cellular reproduction and acts as the brain of the cell.Cytoplasm:Fluid presnt inside the plasma membraneCell organelles:Carries out crucial functions in cells:a)Endoplasmic Reticulum:Contains proteins and lipids which help in building cell membrane.

Importance of each part of a cell............!!!

b)Golgi:First developed by Camillo Golgi,helps in the formation of lysosomes.c)Lysosomes: Disposes all waste from the cell.d)Mitochondria: Powerhouse of cell.e)Plastids: Present only in plants,contain chlorophyll which helps in photosynthesis.f)Vacoules:Small sized in animals,large sized in plants.Plant cell vacoules are full of cell sap.

GOLGI

ANIMAL AND PLANT VACOULE

ANIMAL CELL

PLANT CELL


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