Quiz on Microorganisms and Diseases

What led to the theory that many diseases are caused by germs?

• The invention of antibiotics

• The study of human cells

• The invention of the microscope

• The study of microorganisms in water

Which of the following is NOT included as a microorganism?

• Bacteria

• Fungi

• Viruses

• Algae

Where do some beneficial bacteria live in the human body?

• In the respiratory tract

• On the skin

• In the stomach

• In the bloodstream

What is the role of bacteria and fungi in nature?

• They cause diseases

• They are used to make certain foods

• They play a role in decomposition

• They are used to make antibiotics

What are antibiotics?

• Microorganisms that are used in food

• Medicines that cure diseases caused by viruses

• Living things that are too small to be seen without a microscope

• Medicines that cure diseases caused by bacteria

What can eating yogurt do in the context of bacteria in the body?

• It can kill harmful bacteria only.

• It can kill helpful bacteria only.

• It can help put back the helpful bacteria.

• It has no effect on bacteria in the body.

Why are microorganisms such as rotifers beneficial to fish tanks?

• They increase the water toxicity.

• They clean the tank by eating waste matter.

• They introduce harmful bacteria.

• They reduce the number of plants and animals.

Which of the following is NOT caused by microorganisms?

• Athlete's foot

• Tooth Decay

• Common Cold

• Ringworms

What is important to do to prevent spreading harmful microbes?

• Wash your hands before cooking.

• Wash your hands only when they are visibly dirty.

• Wash your hands after touching animals only.

• Wash your hands properly, especially after cooking.

What can harmful bacteria such as Salmonella or E Coli cause?

• Improved digestion

• Food poisoning

• Increased immunity

• Weight loss