1. Explain one mechanism that bacteria use to become resistant to antibiotics. Give one example of an antibiotic-resistant bacterium.
2. Explain one reason why Healthcare-Associated Infections (HAIs) are on the rise. Give one example of an HAI.
A scientist wants to culture Organism A, a bacterium that
is
salt tolerant, penicillin resistant and turns bright purple
in
the presence of chemical X. You are the culture media
consultant and must recommend ways that she might enrich
her nutrient agar to create a selective and a differential
media for Organism A. You recommend the following two
“recipes”. HINT This is an imaginary bacterium. You
are to design two imaginary media- do not suggest ones
such a MacConkey agar....
Sulfanilamide, Tetracycline, and
Penicillin list each one bacteria might become
resistant to the drug.
Why these Sulfanilamide, Tetracycline, and
Penicillin don't harm human cells?
what is the different about our cells?
Describe TWO specific cellular mechanisms
through which a bacterium can become resistant to an antibiotic.
– Please note that this question is
NOT about practices or actions we do that contribute to antibiotic
resistance in bacteria, such as not taking the entire prescribed
dose. Please remember that bacterial
cells become resistant or tolerant to antibiotics, NOT human cells,
or the human body. –
*** Perform some research in
the college's online library, a microbiology textbook, and other
credible scientific sources...
2. Explain how two procaspases become one active caspase. 3. What role does cvtochome play in apoptosis? 4. Why does a caspase cascade ampify the orainal apoptotic stimulus? 5. What is the function of BCL2 protein in the cel? f8 fg ho 1
Vibrio cholerae is a naturally competent bacterium.
You have 2 strains of V. cholerae: a
ciprofloxacin-resistant strain and a ciprofloxacin-sensitive
strain. Create a procedure to transform the cipro-sensitive strain
with the cipro-resistant DNA over 4 lab periods. Make sure
you include reagents, materials, details, and
controls.
Lab week 1:
Lab week 2:
Lab week 3:
1. Explain two ways bacteria might interact in a community, and
why that interaction might happen that way.
2. Explain in detail one way that bacteria can share genetic
information with each other, but not through vertical
transmission.
List four ways in which a microorganism can be resistant to an
antimicrobial agent and explain why they can or can’t be
transferred to other microorganisms.