Size of Cell


 
 
Concept Explanation
 

Size of Cell

Variation in Size:

  • Most cells are microscopic and cannot be seen with the naked eye. They can be seen only through a microscope. Cell size may vary from a micrometer (a millionth of a meter) to a few centimeters.
  • The smallest cells are bacteria (mycoplasma), which generally range in size from 0.1 to 0.5 micrometer.
  •  The largest cell is the egg of an ostrich, which is 170 millimeter in diameter. Largest human cell is the female ovum (0.1mm in diameter). Smallest human cell is the Red Blood Cell (0.0075 mm or 7.5um). Human nerve cells are believed to be the longest cells.
  • Hen's Egg:

    In Boiled Egg there are two clear portions in a hens egg. The yellow part and a white part surrounding it.  The white part is called albumin while the yellow part is yolk. In an Unboiled Egg, the albumin is a jelly like transparent liquid. The yolk looks like a thicker yellow jelly.

                                                                               

    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    The size of the largest cell is __________________.

    Right Option : D
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    Explanation
    Question : 2

    Which of the following is the smallest cell ?

    Right Option : B
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    Explanation
    Question : 3

    Which of the following is the set of smallest and the largest cell respectively?

    Right Option : B
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    Explanation
     
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