Germ Theory, Viruses, and Bacteria

Match the following

• Living pathogen

• Pathogen

• Disease causing agent

• Bacteria

• no nucleus or membrane bound organelles

• Viruses

• Used to treat Bacterial infections

• Antibiotics

• Non-living pathogen

• Prokaryote

Theory that states that microscopic organisms named germs can cause disease in the human body.

• The big bang Theory

• Spontaneous Generation Theory

• Germ theory of disease

• The Pasteur Theory

Name some common types of pathogens

• Virus, Bacteria, Protist

• Virus, Sugar, Bacteria

• Bacteria, Amino Acids

• Hydrocarburs, Bacteria, Protist

Tags

NGSS.MS-LS2-4

What tool provided the evidence to be able to formulate the germ theory?

• Telescope

• Microscope

• Drill

• Hammer

What´s the name of the german physician that was able to isolated several bacteria from sick people?

• Francisco Redi

• Antoine Vaan Levonhooke

• Louis Pasteur

• Robert Koch

True or False:

Viruses can be treated with antibiotics.

• False

• True

Answer explanation

Viruses can not be killed. They are non-living.

Anti means against. Bio(tic) means life.

Therefore ANTI + BIOtic = against life.

TRUE or FALSE:

Viruses are smaller than the hosts they infect.

• True

• False

Viruses are prokaryotes?

• True

• False

Answer explanation

Viruses are non living. A prokaryote is a cell without a nucleus.

What are the two viral reproductive cycles called?

• The lytic and lysogenic cycles.

• The viral reproductive cycle

• The carbon and nitrogen cycle.

• The prokaryotic and eukaryotic cell cycle.

• Mitosis and meiosis.

Reasons that viruses are considered to be nonliving is because

• They are not cellular
• They cannot reproduce on their own
• They cannot make proteins
• all of the above