Question:

Cilia are :

Updated On: Aug 23, 2023
  • short (510μm)(5-10\, \mu\, m) hair like narrow protoplasmic processes
  • with sweeping or pendular movements
  • more numerous
  • all of the above
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The Correct Option is D

Solution and Explanation

The correct answer is D:all of the above
Cilia are small, hair like structures that are found in bacteria and have a role in movement, sensory perception etc. They are short and are 5-10
micrometres long. They are present in numerous numbers and help in sweeping movements. They have tubulin protein subunits. 
Therefore, all the options given in the question are correct.
 
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Concepts Used:

Cell: The Unit of Life

  • A cell is derived as the functional and structural unit of life. Every cell is surrounded by a cell membrane that dissects the external and internal environments of the cell. The interior environment of a cell is called the cytoplasm.
  • It carries cellular machinery and structural elements. The nucleus is present in the center of the cell, which includes all the hereditary information of an organism. Some of the molecules present in the cell are protein, carbohydrates, starch, and sugar.

Read More: Fundamental Unit of Life: Cell

Parts of Cell:

The different parts of a cell and their functions are as follows:

  • Cell Membrane
  • Cell Wall
  • Nucleus
  • Cytoplasm