INSIGHT UPSC QUIZ

Science & Technology General Science
Q.

Unicellular organism are unique because they are made up of a single cell only. Which of the following is/are examples of unicellular organisms?

1. Amoeba

2. Yeast

3. Bacteria

Select the correct answer using the code given below:

Explanation:

ANSWER: (D) 

  • The invention of magnifying lenses led to the discovery of the microscopic world. 
  • It is now known that a single cell may constitute a whole organism as in Amoeba, Yeast, Chlamydomonas, Paramoecium and bacteria. These organisms are called unicellular organisms (uni = single). 
  • On the other hand, many cells group together in a single body and assume different functions in it to form various body parts in multicellular organisms (multi = many) such as some fungi, plants and animals.
  • Every multi-cellular organism has come from a single cell.

More Questions Selected Just For You. Attempt Now!