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Who coined the term ‘protoplasm’ for the fluid substance of the cell?
Virchow
Robert Brown
Purkinje
Robert Hooke
Purkinje
The term 'protoplasm' was coined by Johannes Evangelista Purkinje in 1839. It refers to the living content of a cell, which includes the cytoplasm, the nucleus, and other organelles, serving as the physical basis of life.
The term 'protoplasm' was coined by Johannes Evangelista Purkinje in 1839. It refers to the living content of a cell, which includes the cytoplasm, the nucleus, and other organelles, serving as the physical basis of life.
Think of protoplasm like the 'raw dough' for a bakery; it contains all the essential ingredients (proteins, water, enzymes) required to create the final functional products (cells and tissues) that make up a living organism.
P-P: Purkinje coined Protoplasm.
Protoplasm=Cytoplasm+Nucleus
Protoplasm functions as the site of all metabolic activities within a cell. It is composed of a complex colloidal mixture of inorganic and organic substances like water, proteins, lipids, and carbohydrates, maintaining the cell's internal homeostasis.
Protoplasm is often called the physical basis of life, a term popularized by Thomas Huxley.
The physical state of protoplasm varies between sol (liquid) and gel (solid) states.
Purkinje was also a pioneer in neurobiology and histology.
Allows for compartmentalization of biochemical reactions.
Facilitates intracellular transport of nutrients and signaling molecules.
Study of cell biology and cytochemistry.
Understanding the chemical origins of life (abiogenesis).
Option A (Virchow) is famous for 'Omnis cellula e cellula' (cells arise from pre-existing cells).
Option B (Robert Brown) is credited with the discovery of the cell nucleus.
Option D (Robert Hooke) discovered the cell in 1665 using a cork slice.
C is correct — Johannes Evangelista Purkinje coined the term 'protoplasm' in 1839 to describe the jelly-like substance within a living cell.
For competitive exams, memorize the 'big four' discovery contributors: Hooke (cell), Brown (nucleus), Purkinje (protoplasm), and Schleiden/Schwann (cell theory).
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