Question

Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group?

• A. Yeast used in making bread and is a fungus.
• B. Nostoc and Anabaena are examples of Protista.
• C. Paramecium and Plasmodium belong to the same kingdom as that of Penicillium.
• D. Lichen is a composite organism formed from the symbiotic association of an algae and a protozoan.

Answer 1

The correct option is A Yeast used in making bread and is a fungus.

Yeasts are the unicellular eukaryotic microorganisms classified in the kingdom Fungi. By fermentation, the yeast species Saccharomyces cerevisiae converts carbohydrates to carbon dioxide and alcohols, the carbon dioxide has been used in baking and the alcohol in alcoholic beverages. Whereas Anabaena and Nostoc is a genus of filamentous cyanobacteria that exists as plankton, Paramecium is a genus of unicellular ciliated protozoa, members of the phylum Ciliophora. Plasmodium, commonly known as the malaria parasite, is a large genus of parasitic protozoa. Penicillium is a genus of ascomycetous fungi. A lichen is a composite organism that emerges from algae or cyanobacteria (or both) living among filaments of a fungus in a mutually beneficial (symbiotic) relationship. Thus, the correct answer is option A.