VI. Answer very briefly.
1. Write the name of any nitrogen fixing bacteria.
2. Name the bacteria used in the production of vinegar.
3. Write the names of any three protozoans.
Answer (2)
Nitrogen-fixing bacteria include Rhizobium, while Acetobacter is used to produce vinegar. Examples of protozoans include Amoeba, Paramecium, and Euglena. These microorganisms play essential roles in their respective ecosystems and processes.
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Nitrogen Fixing Bacteria : One example of a nitrogen-fixing bacterium is Rhizobium . These bacteria are essential in agriculture because they convert atmospheric nitrogen into forms that plants can uptake and use for growth. They often form symbiotic relationships with leguminous plants, living in root nodules and enhancing soil fertility.
Bacteria Used in Vinegar Production : The bacterium used in the production of vinegar is Acetobacter . These bacteria play a crucial role in converting ethanol (alcohol) into acetic acid, which gives vinegar its characteristic sour taste and preservative qualities.
Names of Protozoans : Examples of protozoans include:
Amoeba : A single-celled organism known for its ability to change shape using pseudopodia for movement and feeding.
Paramecium : Commonly found in freshwater environments, it uses tiny hair-like structures called cilia for movement and feeding.
Plasmodium : Notably known for causing malaria in humans, transmitted by mosquito bites.
