QS Study

Protoplasm in Living Cell

Protoplasm is made by the combination of dissimilar multifarious compounds. It is the colorless substance comprising the living element of a cell; include the cytoplasm, nucleus, and other organelles. It is jelly-like, transparent, thick, colorless semi solid-living substance. All the properties of life are there in it. Protoplasm is separated into three parts: Plasma membrane, Cytoplasm, and Nucleus.

Protoplasm is tranquil of a combination of small molecules such as ions, amino acids, monosaccharides and water, and macromolecules such as nucleic acids, proteins, lipids, and polysaccharides.

Function: It carries out all the procedures essential for life. It procedures nutrients and oxygen, transform food into living matter, ejects used substances, renews its worn parts, and itself produces new cells.

  • Reproduction: Cells divide to form identical daughter cells; the function of the nucleus of the protoplasm, e.g. the meristematic region of angiosperms.
  • Irritability: The living protoplasm responds to stimuli, e.g. retinal cells in the eye respond to light.
  • Chemical: All these functions are carried out inside the cell, e.g. respiration in the mitochondria;
  • Excretion: Cells must get rid of excretory wastes; they usually diffuse out of the cell through the cell membrane.
  • Growth: Growth follows on cell division; there is the absorption of protoplasm and enlarge in size.
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