Microbiology Quiz

What is the definition of microbiology?

• The study of large organisms

• The study of human anatomy

• The study of all living organisms that are too small to be visible with the naked eye

• The study of chemical reactions in living organisms

Which of the following is NOT a type of microbe?

• Fungi

• Viruses

• Bacteria

• Mammals

Where can microbes be found in nature?

• Only in water

• Air, soil, water, food, and surfaces of our body

• Only in soil

• Only in food

What is a characteristic of prokaryotic organisms?

• They have a nucleus

• They are unicellular

• They have membrane-enclosed organelles

• They are multicellular

What is the size range of bacteria?

• 0.2-1.5 by 3-5 m

• 1-10 m

• 10-100 m

• 0.01-0.1 m

Which of the following is a practical significance of bacteria?

• They do not grow on artificial media

• They are used in the manufacture of valuable compounds

• They can only cause diseases

• They are all pathogenic

What is the primary characteristic of viruses?

• They can grow on artificial media

• They are unicellular

• They require living cells to reproduce

• They have a complex structure

What is the size range of protozoa?

• 0.015-0.2 m

• 1-10 m

• 2.0-200 m

• 0.1-1 m

Which of the following is a use of microbes in food production?

• Producing antibiotics

• Manufacturing plastics

• Creating synthetic fibers

• Making bread and cheese

What is an antibiotic?

• A substance produced by a microorganism that inhibits the growth of another microbe

• A type of bacteria

• A method of food preservation

• A type of virus