Question

Which of the following is a unicellular organism?​

Answer 1

Answer:

A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell, unlike a multicellular organism that consists of multiple cells.

Unicellular organisms include bacteria, protists, and yeast.

Explanation:

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Answer 2

Unicellular organisms are singled celled organism.

Explanation:

Unicellular organisms consist of single cell. Only one cell is enough to perform all the vital functions including metabolism, excretion and reproduction.

• A cell of unicellular organism has a protoplasm which consists of various proteins, lipids, carbohydrates and nucleic acid.

• A cell membrane contains the protoplasm and separates it from the outer surrounding.

• There are two major groups of unicellular organism: Eukaryotes and prokaryotes.

• Prokaryotes do not have any true nucleus whereas eukaryotes have well defined DNA in nucleus.

• Prokaryotes are all unicellular organism whereas eukaryotes can be unicellular or multicellular.

• Examples of unicellular organism are bacteria, protozoa, archaea, unicellular fungi and unicellular protists.