Question

Yeast is not included in protozoans but in fungi because :

• A. It has eukaryotic organization
• B. Cell wall is made up of cellulose and reserve food materials as starch
• C. It has chlorophyll
• D. It shows saprotrophic mode of nutrition

Answer 1

The correct option is D It shows saprotrophic mode of nutrition

Yeast is an exception whereas all the fungi are filamentous and multicellular. But the other character of yeast makes fungi not a protozoan. Fungi have an absorptive method of food acquisition but protozoans have holozoic mode of nutrition.

Fungi reproduce through spore formation or yeasts have budding mechanism but protozoans exhibit reproduction by gamete formation or by conjugation. Yeast is not included in protozoans but in fungi because it shows saprotrophic mode of nutrition.

So, the correct answer is "option B"