PLTW PBS UNIT 3.1 EXAM QUESTIONS AND ANSWERS 2026 #11
Epidemiologist - correct answer a specialist in the study of outbreaks of disease within a
population group
Endemic - correct answer native or confined to a particular region or people;
characteristic of or prevalent in a field
Outbreak - correct answer a sudden rise in the incidence of a disease
Pandemic - correct answer disease that occurs over a wide geographic area and affects
a very high proportion of the population.
Nosocomial disease - correct answer hospital acquired infection
Microbial (bacterial) cells - correct answer bacterial cells on and in a human noramlly
Infection - correct answer contamination or invasion of body tissue by pathogenic
organisms
Host - correct answer an animal or plant that acts as a biological refuge in which
another - often parasitic - organism may dwell.
Pathogens - correct answer disease causing agents
Agents of disease - correct answer prions, viruses, bacteria, protists, fungi, helminths
Prions - correct answer misfolded proteins with the ability to transmit their misfolded
shape onto normal variants of the same protein in the body; several fatal and
transmissible neurodegenerative diseases are caused
Viruses - correct answer very tiny 'germs' of genetic material surrounded by a protein
coat that cause disease
Bacteria - correct answer single-celled organisms that can be a harmful strain in the
body including pneumonia, meningitis, and food poisoning.
Protists - correct answer single-celled organisms, also called 'protozoa', that are
responsible for a range of diseases, including dysentery and flesh eating.
Fungi - correct answer invades the tissue via spores and can cause disease that's
confined to the skin, spreads into tissue, bones, and organs, or affects the whole body.
Helminths - correct answer parasitic worms that can dwell in the GI track
Epidemiologist - correct answer a specialist in the study of outbreaks of disease within a
population group
Endemic - correct answer native or confined to a particular region or people;
characteristic of or prevalent in a field
Outbreak - correct answer a sudden rise in the incidence of a disease
Pandemic - correct answer disease that occurs over a wide geographic area and affects
a very high proportion of the population.
Nosocomial disease - correct answer hospital acquired infection
Microbial (bacterial) cells - correct answer bacterial cells on and in a human noramlly
Infection - correct answer contamination or invasion of body tissue by pathogenic
organisms
Host - correct answer an animal or plant that acts as a biological refuge in which
another - often parasitic - organism may dwell.
Pathogens - correct answer disease causing agents
Agents of disease - correct answer prions, viruses, bacteria, protists, fungi, helminths
Prions - correct answer misfolded proteins with the ability to transmit their misfolded
shape onto normal variants of the same protein in the body; several fatal and
transmissible neurodegenerative diseases are caused
Viruses - correct answer very tiny 'germs' of genetic material surrounded by a protein
coat that cause disease
Bacteria - correct answer single-celled organisms that can be a harmful strain in the
body including pneumonia, meningitis, and food poisoning.
Protists - correct answer single-celled organisms, also called 'protozoa', that are
responsible for a range of diseases, including dysentery and flesh eating.
Fungi - correct answer invades the tissue via spores and can cause disease that's
confined to the skin, spreads into tissue, bones, and organs, or affects the whole body.
Helminths - correct answer parasitic worms that can dwell in the GI track
