Microbiology Chapter Quiz

Tiny living things that cause diseases.

Single-celled organisms, like bacteria, that can reproduce by dividing.

Bacteria damage tissue and release toxins, which both make you sick.

Viruses are much smaller than bacteria and can only reproduce inside host cells.

Parasites are organisms that live off of another organism, often causing diseases.

Bacteria are microscopic living cells that can reproduce very quickly. They make us sick by damaging tissue or releasing toxins.

Viruses are much smaller than bacteria and can only reproduce inside living cells. Once inside, they take over cell functions to make more viruses, causing damage.

Parasites are organisms that live in or on other organisms, often causing harm. They might enter the body through skin, contaminated food, or drink.

Fungi are microorganisms, like molds, causing diseases. They can enter the body through the air or by direct contact.

Scientists develop new ways to fight diseases caused by pathogens. They explore vaccines, antibiotics, and other treatments.