Question

Yeast is different from Penicillium and Rhizopus in being
A. Acellular
B. Unicellular
C. Having non septate hyphae
D. Multicellular

Answer 1

Hint: The five kingdom classification, organisms classified on the basis of their characteristics. The kingdom fungi also involve the unicellular and multicellular eukaryotic organisms that include yeast, Penicillium and Rhizopus.

Complete Answer:
- Fungi can be either single or multicellular species that are very complex. They are present in almost any environment, but most of them live on the ground, often in soil. It is a member of the eukaryotic organism community which includes micro-organisms such as yeasts and molds, as well as the more common mushrooms.
- These organisms are classified as a kingdom, which is separate from the other eukaryotic life kingdoms of plants and animals. Fungi are heterotrophic in nature; they obtain food from decomposed organisms, parasitism, and mutualism.
- Multicellular fungi like Penicillium and Rhizopus have three stages; spores falling, hyphae developing, and finally mycelium forming. The creation and release of spores are done by the gills located under the mushroom cap.
- These spores are either single cell male or female attached together to form hyphae. Once one spore's hyphae meet another spore's hyphae they meet and combine to be the mechanism of mycelium growth.
- Now, the Penicillium and Rhizopus are multicellular fungi while the yeast is unicellular fungi as the yeast consists of thread like hyphae but other fungi consist of septate hyphae.

Thus, the correct option is ‘B’. Unicellular.

Note: The rhizopus, Penicillium, and yeast all of them have commercial uses. The Rhizopus are used in industrial processes in the production of cortisone and lactic acid, even the fermentation of alcohol is used. Yeast is used for the fermentation of bread and other bakery items and the Penicillium is used in the production of paracetamols in pharmaceutical industries.