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1. Define infection, disease, infectious disease. List the major sites of the human body that harbor a normal flora, and explain why internal tissues and organs are microbe-free. List the major organisms that make up the flora for the following body regions: skin, upper respiratory track, genital and urinary track.
2. Discuss the protective and nutritional benefits of normal flora, as well as, the potential that exists for a few species to become an infectious disease. Outline the colonization of the newborn.
3. In general terms, discuss the different adhesion mechanisms employed by pathogens. Discuss how the following virulence factors contribute to tissue damage: extracellular enzymes, bacterial toxins, leukocidins, slime layers, and capsules.
How does Providencia alcalifaciens behave in the phenol red broth in glucose, lactose, and sucrose?
Finals are over and you go out with friends to celebrate. One of your friends has an outdoor hot tub, so everyone gathers there for a warm soak and some beer.
Which enzymes do you expect to be MOST conserved and why? What do these enzymes do and why are they important?
How long has NASA been studying plants in space? How do plants grow in space defer from being grown on earth?
To test their hypotheses, the researchers examined the data they collected during the period of study.
The Neurospora cross was made between a strains that carried mating type A and mutant allele arg-1(arg) and another strain the carried mating-type a and the wild type arg-1 (+) gene. Four hundred linear octads were isolated and they fell into the 7 c..
you should read your lab manual and review the microscopy animation and light microscopy animation that is included in
Analyze your diet and exercise behaviors (excesses and/or deficiencies) and explain the potential health effects. Analyze 3-5 specific lifestyle changes that are realistic to improve diet and/or exercise and the benefits that would be produced.
We are able to produce human insulin in bacteria by inserting the gene into bacteria. What is the basic theory of biological evolution and what evidence is there to support this theory?
Evaluate the sizes of the different digestive organs of an earthworm. Which organ is the largest? How does its size make it well suited for its function.
Not all bacteria are culturable (i.e. able to be grown in the lab using specific nutrient media). How could PCR be used to help us.
a. compare the structure of the fetal pig heart and sheep heart. how are they similar? how are they different?b. why
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