CHAPTER 1

Question 1

Microbiology definition

Answer 1

branch of biology studying microscopic forms of life

Question 2

Microscopic

Answer 2

invisible to the naked eye

Question 3

Microbe

Answer 3

an organism invisible to the naked eye, especially one that causes disease

Question 4

Microbicide

Answer 4

An agent that inactivates, kills or destorys microbes

Question 5

bacteria

Answer 5

single celled or non-cellular
spherical/spiral/rodshaped organisms that lack chlorophyll
cell walls have peptido glycan
prokaryotic
can be auto/heterotrophic

Question 6

archaea

Answer 6

one of two prokaryotic domains of life, including bacteria

Question 7

Protozoa

Answer 7

animal like protists

Question 8

Protists

Answer 8

unicellular
eukaryotic
diverse group, not included in animal, fungi or plants

Question 9

Helminths

Answer 9

parasitic worms

Question 10

Viruses

Answer 10

• can only reproduce inside host cells
• damage the cell when they do go into the host

Question 11

Viroids

Answer 11

infectious particles that cause disease in plants

Question 12

Prions

Answer 12

infectious protein particles that do not have a genome

Question 13

What microorganism do not normally cause infection in humans?

Answer 13

Archaea

Question 14

Archaea domain

Answer 14

prokaryotic cells that live in extreme conditions