VBS 2302 Exam 1 Week 1 Questions and
Answers 100%
Define ubiquity - answerFound everywhere
Why don't we know the extend of microbial diversity? - answerStill need to learn with
advanced technology and DNA sequencing
3 ways in which microbial activity is essential for life - answerNitrogen fixation
Recycling
O2 production
Why aren't most microbes harmful? - answerIn order to cause disease, they must be
able to grow at room temperature, avoid immune systems, and extract nutrients from
tissues
What influeces your chances of getting ill from microbes? - answerNumber of microbes,
virulence of microbe, host immunity
Define virulence - answerA measure of how well a microbe can invade your immune
system and cause damage
How can the Chain of Infection be broken? - answerIsolation
Wash hands
Vaccinate
What are 3 ways our changing relationship with wildlife affects the emergence of new
infectious diseases - answer1) People move to new areas
2) Dilution effect
3) Wildlife trade
Describe the dilution effect - answerAbundance of certain species because of the new
habitat made by humans (ex. Suburbs and mice carrying Lyme disease)
Describe wildlife trade - answerPathogen from one animal might not be able to infect
humans, but can infect another animal that can evolve or adapt, and then infect humans
An increase in the _____ will decrease the likelihood of infection - answerHost immunity
Nitrogen fixation is an essential process carried out by... - answerAlgae and bacteria
Examples of prokaryotes - answerBacteria, archae
Examples of eukaryotes - answerFungi, protozoa, algae
Answers 100%
Define ubiquity - answerFound everywhere
Why don't we know the extend of microbial diversity? - answerStill need to learn with
advanced technology and DNA sequencing
3 ways in which microbial activity is essential for life - answerNitrogen fixation
Recycling
O2 production
Why aren't most microbes harmful? - answerIn order to cause disease, they must be
able to grow at room temperature, avoid immune systems, and extract nutrients from
tissues
What influeces your chances of getting ill from microbes? - answerNumber of microbes,
virulence of microbe, host immunity
Define virulence - answerA measure of how well a microbe can invade your immune
system and cause damage
How can the Chain of Infection be broken? - answerIsolation
Wash hands
Vaccinate
What are 3 ways our changing relationship with wildlife affects the emergence of new
infectious diseases - answer1) People move to new areas
2) Dilution effect
3) Wildlife trade
Describe the dilution effect - answerAbundance of certain species because of the new
habitat made by humans (ex. Suburbs and mice carrying Lyme disease)
Describe wildlife trade - answerPathogen from one animal might not be able to infect
humans, but can infect another animal that can evolve or adapt, and then infect humans
An increase in the _____ will decrease the likelihood of infection - answerHost immunity
Nitrogen fixation is an essential process carried out by... - answerAlgae and bacteria
Examples of prokaryotes - answerBacteria, archae
Examples of eukaryotes - answerFungi, protozoa, algae
