Define cells. Explain the variation in size that a cell undergoes.
Answers
⟹ Cells :- Cell is the basic unit of all organism . All living organism are made up of cells . Cells are made up of different parts known as cell organelles .
⟹ Variation in cell ( Quantity ) :-
- >> Unicellular Organism :- Organism having only one cell are called unicellular Organism .
- >> Multicellular Organism :- Organism having more than one cell are called multicellular Organism .
⟹ Variation in cell ( size )
- >> Spindle :- In human body muscle cell is of spindle shaped .
- >> Oval :- RBCs ( Red blood cells )
- >> Tree shape :- In human body nerve cell is tree shaped cell
- >> Round :- ovum is round shaped cell in Human body and it is the largest cell in Human body .
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Cell :- Cells are the basic building blocks of all living things. Cells also contain the body's hereditary material and can make copies of themselves. Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell.
Variation in size of cell :-
Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell's function is determined, in part, by its shape.