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317 Answered Questions for the topic microbiology

Microbiology Science Biology

1d

What is a cell?

Microbiology Pharmacology

7d

Empiric treatment for Infection in Soft Tissue

Noah is a 60 years old male with diabetes, hypertension, epilepsy, and HIV. He presents to the emergency department for the second time after failing his oral antibiotic treatment with Cephalexin.... more
Microbiology Science Biology

8d

Oxidative Phosphorylation?

Can someone explain the following items in the context of oxidative phosphorylation, along with explaining the process? Mitochondrial matrix Intermembrane space Inner mitochondrial membrane NADH... more
Microbiology Biology

15d

Reverse transcriptase

Hi!I have one question!Is the enzyme reverse transcriptase that retroviruses need found in the retrovirus particle or inside our own cells (host cell)??
Microbiology Science Biology

15d

Creating Dichotomous Keys

I need help making a dichotomous key for archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
Microbiology Science Biology

15d

Dichotomous Key

I need help making a dichotomous key for: archaea and protists. It can be for specific species or for groups/subgroups of the kingdoms.
Microbiology Science Biology

21d

Can someone help me please?

A 45 year-old woman complaining of breast pain was diagnosed with having HER2-positive breast cancer. The patient underwent lumpectomy followed by a period of chemotherapy including adjuvant... more
Microbiology Science Biology

27d

What is the reason for bacterial death in the cell culture? Will bacteria spontaneously die in human infection?

Discussing microbiology lab on bacterial growth curve
Microbiology

27d

How growth curve will change if the number of bacteria in the lag phase will be change from 16 to 32cells?

discussing stages of bacterial growth curve.
Microbiology Biology Immunology

09/28/20

Determine number of Bacteria

Determine the number of bacteria within a 1 kilogram package of ground beef in order to provide a quantitative risk assessment and quality measure before release to public market.Technical Data: A... more
Microbiology Biology Biochemistry

09/28/20

Antibiotic sensitivity table

Hi!Is the table in Bio Libres page on Kirby Bauer for all types of bacteria when it is not specified like Ampicillin (Staph)?Link will be posted in comment below.Thanks!
Microbiology

09/28/20

Microbio help please!

What is the total surface area of a 50 mL Streptococcus pneumoniae culture at 5x108 cells mL-1 in which the cells have a radius of 0.5 mm? Calculate you answer in cm2. 
Microbiology Biology Biochemistry

09/25/20

Kirby Bauer Test

Hi!What are some error sources for the Kirby Bauer test for antibiotic sensitivity?Thanks!
Microbiology Biology Biochemistry

09/25/20

Antibiotic Resistance Reference

Hi!Can someone please give me a link to a table where I can find reference value for when the inhibition zone length is counted as resistant or susceptible for E.coli and Tetracycline 10 mikrograms?
Microbiology Biology Biochemistry

09/24/20

E. coli antibiotic

Hi!I wonder if Streptomycin is effective for E.coli infections?Some sources say yes, others say that it enhances its growth.Which one is true?Thanks!
Microbiology Biology Biochemistry

09/24/20

Inhibition zone

Hi!I did a Kirby-Bauer lab seeing antibiotic resistance in E.coli. I have measured the inhibition zones, but I am not sure how to confirm if it is large enough to be considered not resistant or... more
Microbiology Biology

09/24/20

Ampicillin effect

Hi! I wonder of Ampicillin kills bacteria and if I am right:It kills it by preventing the cell wall to be built up and when the bacteria cell will divide, there is no cell wall to hold it together... more
Microbiology

09/14/20

How many grams of NaCl do you need to make 500 mL of 1M NaCl solution

Microbiology

09/11/20

Bacteria on a petri dish in relation to our environment.

How are the petri dish vs. your own body very different environments for bacteria? Like how is it that we can see the bacteria on a petri dish after touching it, yet we can't see the bacteria on... more
Microbiology Biology Chemistry

09/04/20

Sulfur bacteria

Hi!I have learned that sulfur bacteria are a type of chemoautotrophic bacteria.So they take hydrogen sulfide and transform it to sulfate? Is that it? Is there any chemical reaction for it?I would... more
Microbiology Biology Chemistry

09/02/20

Biology disinfectant Question

Which of the following is considered a high level disinfectant that would inactivate biological spores?A. 95% ethanolB. Quaternary ammonium disinfectantC. 10% household bleach in water soluntionD.... more
Microbiology

08/31/20

create a dominant repressor of INO1 and other inositol regulatory genes?

Describe a mutation to the Opi1 transcription factor or another gene that will create a dominant repressor of INO1 and other inositol regulatory genes? How would you test the resulting mutant to... more
Microbiology

08/31/20

mutation to the Opi1 transcription factor

Describe a mutation to the Opi1 transcription factor or another gene that will create a dominant repressor of INO1 and other inositol regulatory genes? How would you test the resulting mutant to... more
Microbiology Math Science

08/30/20

Label The diagram A ⮂ B+C

A ⮂ B+Ca. Reactant (substrate) for hydrolysisb. Products of hydrolysisc. Reactants for synthesisd. Product of synthesis
Microbiology Biology Chemistry

08/29/20

Label the reversible chemical reaction diagram 

A ⮂ B+Ca. Reactant (substrate) for hydrolysisb. Products of hydrolysisc. Reactants for synthesisd. Product of synthesis
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