Bacteria
Viruses
Bacteria's role in the world
Random questions throughout the chapter
Review
100

________ are single celled organisms 

Bacteria 

100

A ______ is a microscopic particle that gets inside a cell and often destroys the cell

Virus 

100

What type of bacteria take in nitrogen from the air and change it into a form that plants can use?

Nitrogen-fixing bacteria

100

What bacteria often live in harsh environments?

Archaebacteria 
100

Medicines used to kill bacteria 

Antibiotics 

200

Bacteria that are rod-shaped 

Bacilli 

200

Medications people take to stop viruses from reproducing 

Antivirals 

200

Broken down sugar in milk is called _______

lactose
200

What organisms are the smallest and simplest living things on Earth? 

Bacteria 

200

Name one of the four basic shapes of viruses 

Crystals, Cylinders, Spacecraft, or Spheres 

300

An organism that does not have a nucleus 

Prokaryote 

300

The process in which viruses attack living cells and turn them into virus factories 

Lytic Cylce 

300

What process uses microorganisms to change harmful chemicals into harmless ones? 

Bioremediation

300

Where is the only place viruses reproduce?

Inside a living cell

300

Name the three main shapes of bacteria 

Bacilli, Cocci, and Spirilla 

400

What is the process in which bacteria reproduce?

Binary Fission 

400

What protects the genetic material and helps a virus enter a host cell?

Protein Coat 

400

What do humans need to break down and use sugar and carbohydrates? Also used for people with diabetes 

Insulin 

400

Scientists have _________ __________ bacteria to make medicines 

genetically engineered 
400

The process in which viruses reproduce but the genes stay inactive for a long time 

Lysogenic Cycle

500

What contains genetic material, proteins, and is covered by a thick, protective coat? 

Endospore
500

What gives your immune system a head start in fighting off viruses?

Childhood Vaccinations 

500

_______ bacteria are bacteria that cause disease 

Pathogenic 

500

______ have cell walls and are either producers or consumers 

Eubacteria 

500

The bacteria that break down sugar in milk

Lactic acid-producing bacteria