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INTRODUCTION TO THE CELL

DISCOVERY OF CELL

CELL STRUCTURE

TYPES OF CELL

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The term CELL was first given by Robert Hooke in 1665.The word comes out from a latin word "cellula".This is a picture of a microscope which was made by Robert Hooke. He observed dead cork cells .

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smallest cell- 0.1 to 0.5 micrometer in bacteria.
largest cell- 17cm *13cm (ostrich egg)

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ppt to explain what is cell and why it is called as structural and functional unit of life .

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CB_VII_Sci_Cells The building blocks of Life_1 (1)

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Presentation to explain how cell was discovered .

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CB_VII_Sci_Cells The building blocks of Life_2

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7. A Plant cell is  different from Animal cell.

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7. A Plant cell is  different from Animal cell.

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Presence of CELL WALL and CHLOROPLAST .

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A cell has two main parts protoplasm and cell membrane.The jelly like fluid inside cell is called PROTOPLASM.Protoplasm is surrounded by a Cell Membrane.This membrane provides protection and gives definite shape to the cell.Protoplasm contains different components that help the cell to perform various activities . Based on the arrangement and the structure the all cells are divided into two types.-PROKARYOTIC AND EUKARYOTIC CELL.

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Cells show variation in their shapes. A cell has a direct correlation with the environment in which it grows and functions. For eg , red blood cells in our body which contain haemoglobin and carry oxygen to all the body tissues are flat,round and very small in sizewhereas the nerve cells are long and show branched structures.

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Find quizzes on any topic and practice or compete with friends.

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1. Why cell is called the structural unit of life?
2. State two examples of unicellular and multi cellular organism.
3. life cannot exist below the level of cell.(True/False).
4. Which scientist was the first one to observe tiny little bacteria under the microscope?
5. What is protoplasm?
6. Draw a concept  map for the lesson.
7. Name the smallest and the largest cell.
8. Does size of the cell has correlation with the size of the body of the animal or plant?
9. Draw the pyramid for organisation in living organism.

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Animal Cell Model | Science 3D Project Model For Students | Animal cell project | animal cell 3D