Key Terms
What is the correct term used to describe microorganisms that produce disease in humans?
Pathogens
What is a group of one-celled organisms that lack chlorophyll?
Fungi
What disease infects T cells?
HIV
Which bacteria have a rodlike shape?
bacilli
Human prion disease affect which tissues?
Brain
Is Geographic tongue a dental sign of second-stage infectious syphilis?
NO
what disease is commonly known as lockjaw?
Tetanus
Oral candidiasis is an opportunistic infection caused by?
fungi
Chemicals such as chlorine (bleach), iodine, phenol, and formaldehyde are?
able to destroy viruses in the external environment
Bacteria that require oxygen to grow are called?
Aerobes
_______ is the study of microorganisms.
Microbiology
What diseas presents the highest risk to dental personnel?
Hepatitis B
What type of bacteria have a spherical shape?
Cocci
General antibiotics are ineffective in preventing or curtailing?
viral infections
What is the most resistant form of life known?
What types of microorganisms do not produce human illness?
nonpathogenic
What causes chickenpox, shingles, measles, and herpes?
Herpesvirus
What types of microorganisms are known as obligate intracellular parasites, meaning they can live and multiply only inside an appropriate host cell?
viruses
What forms of hepatitis is spread through fecal-oral contamination?
Hepatitis A
What is the name of a new and separate class of disease-producing molecules that are composed of proteins that lack nucleic acids?
Prions
A viral disease cannot be transmitted through what?
radiation
What disease is caused by a spore-forming bacillus found in soil?
tetanus
Bacteria that does not require oxygen in order to grow are called?
anaerobes
specificity