INTRODUCTION TO MICROBIOLOGY QUESTIONS 2025/2026, Quizzes of Microbiology

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1,What is the study of organisms too small to be seen without a microscope? 2.Microbes are earth's most ubiquilous life form. This means they... Can be [ound almost everywhere Smell funny Are mysterious in their ways Are dangerous ta all other forms of lile 3.Which statement accurately reflects the significance af microbes in the history of life on Harth? Microbes are the most complex organisms on the planct. Microbes have existed for a shorter time than multicellular organisms. Microbes are essential for the survival of all life forms and influence various non— biological proces: Microbes are primarily responsible for the development of large terrestrial animals. 4,What percentage of microorganisms are known to be pathogenic to humans, highlighting the overall role of micrabes in health and disease? 10 percent 50 percent 1 pereent 25 percent 3,How do microbes contribute ta the nutrition of humans and ruminant animals? y directly synthesizing vitamins and nutrients that are absorbed by the host y competing with pathogens for resources in the digestive system y breaking down complex carbohydrates into simpler sugars that can be absorbed y producing toxins that inhibit the growth of harmful bacteria 6,Poods made with the aid af microbes include cheases (blue, camembert, Roquefort, brie), yogurt. buttermilk, corn sweeteners to fructose via microbial activity, and citric acid made by the activity of a fungus. Bioremediation Microbes and the lfood Industry Microbial Ecology Biological Insecticides 7.Which of the following statements accurately describes prokaryotic organisms? They possess a defined nucleus and membrane-bound organelles, They are unicellular organisms that lack a defined nucleus. They are exclusively multicellular and found in extreme environments. They haye a complex ccllular structure similar to cukaryotes. &8,Which of the following statements accurately describes cukaryotic organisms? They possess a defined nucleus and belong to the domain Eukarya. They lack a defined nucleus and are classified under the domain Archaca, They are unicellular organisms found exclusively in extreme environments, They reproduce asexually and are part of the domain Bacteria.