Question

A kingdom of unicellular eukaryotes is

• A. Monera
• B. Protista
• C. Fungi
• D. Plantae

Answer 1

The correct option is B

Protista

The correct option is B.

Explanation of the correct option :

1. Kingdom Protista has unicellular eukaryotic organisms.
2. They have a true nucleus and contain membrane-bound cell organelles.
3. The organisms are primarily aquatic.
4. They have cilia or flagella for locomotion and catching food.
5. They exhibit both the autotrophic and the heterotrophic modes of nutrition. Examples: Diatoms, Protozoans (Amoeba).

Explanation of the incorrect options:

Option A:

The kingdom Monera consists of unicellular prokaryotic organisms. Examples: Bacteria and Blue-green algae

Option C:

The organisms belonging to kingdom fungi are both multicellular and unicellular. Examples: Yeast, Mushrooms, Bread mold (Mucor), Lichen, etc.

Option D:

The kingdom Plantae contains multicellular organisms and eukaryotes in nature. Examples: Moss, Riccia, Pinus, Mango, etc.

Final answer: A kingdom of unicellular eukaryotes is Protista.