Difference between Unicellular and Multicellular Organisms


 
 
Concept Explanation
 

Difference Between Unicellular and Multicellular Organism

Variation in Number: Bodies of organisms may consists of one or many cells. 

Unicellular Organism

Multicellular Organism

A single cell constitutes the whole organism.

Multiple cells are grouped together in a single body which assume different functions in the body to form various body parts

In a unicellular organism, a single cell performs vital activities like feeding, movement, respiration, and reproduction.

All cells are specialised to perform different functions of the multicellular body

E.g. Amoeba, Paramoecium, Bacteria etc

E.g. Fungi, Plants, Animals including Humans.

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

Which of the following are correct :

(a) In a unicellular organism, a single cell performs vital activities like feeding, movement, respiration, and reproduction.

(b) There is no division of labour in prokaryotic unicellular organism but it may be seen within the cell in eukaryotic organism.

(c) There is no division of labour in eukaryotic unicellular organism but it may be seen within the cell in prokaryotic organism.

Right Option : A
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Explanation
Question : 2

Amoeba acquires its food through a process, termed as ___________________

Right Option : B
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Explanation
Question : 3

An example for unicellular organism is ___________

Right Option : A
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Explanation
 
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