684 Answered Questions for the topic microbiology

Microbiology Science Biology Pltw

10/25/19

Biomedical Innovations - PLTW Activity 3.1.3
I need help with either: Creating an improvement of an existing product within the realm of medicine, dentistry, or assisitive care ORComing up with... more
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Microbiology Math Science Biology

10/19/19

What are the common characteristics of this bacteria?
For my microbiology class, we are working on an unknown project where we have to find out what bacteria is given to us through a series of tests. I was assigned Staphylococcus saprophyticus as one... more
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Microbiology

10/09/19

Explain the role of clavulanic acid in Augmentin? What is it about clavulanic acid’s chemical structure that allows this role. What name is given to the action of clavulanic acid on β-lactamase?

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Microbiology

10/09/19

This is the chemical structure of Meropenem, a carbapenem antibiotic. The β- lactam ring is common to all antibiotics in this class. Circle the β-lactam ring.
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Microbiology

10/09/19

Explain the relationship amongst β-lactamases, β-lactam ring and β-lactams to describe how bacteria can be resistant to antibiotics such as penicillin
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Microbiology

10/09/19

Describe how β-lactam antibiotics (e.g. penicillins, carbapenems) harm or kill bacteria (research on your own).
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Microbiology Biology

09/30/19

How to solve Calculations for macronutrients?
(include the mineral base but do not include the Wolfe's Trace Element or Vitamin Solution)Xylose Flask Moles of carbon per liter moles of nitrogen per liter moles of sulfur per litler moles of... more
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Microbiology Hiv Virology Viruses

09/29/19

HIV and it's Reproductive Cycle
Hello,I am wondering about HIV and it's reproductive cycle. Is it Lysogenic that subsequently goes through and Lytic cycle? I am wondering if it goes through induction.
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Microbiology Science Biology

08/27/19

cells, cell life and extending cell life.
hello,I have always been curious about different ways in which we can extend the life of a cell. let's say we found a way to make the telomere of a cell longer. that means we can extend the life of... more
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Microbiology Biology

08/25/19

short-day and long-day plants
why short-day and long-day are not the best descriptive terms for these type of flowering plants?
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Microbiology

08/09/19

Mitosis on onion root
mitosis on onion root  Prophase 32% Metaphase 16% Anaphase 26% Telophase 26% Here the question 1)The majority of cells in your specimen were in stage of the *cell cycle*? Suggest a reason. 2)... more
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07/29/19

Bacterial cell lysis - what solution to use?
I am trying to determine how quickly detergents act on bacterial cells (cell lysis). I would like to compare some detergents at difference concentrations for bacteriolytic activity. I don’t care... more
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07/28/19

What cells or chemicals are involved in acute inflammation and immune response during infections?

When studying the physiology of the immune system and inflammation The cells involved are derived from the plasma portion of blood and the most common are neutrophils, NK cells, macrophages, T... more
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Microbiology

07/26/19

Do bacteria with capsular antigen always have a capsule?
Assume some bacteria have capsular antigen. **Do these bacteria always have a capsule?** I think not, I think the antigen only makes it possible.
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Microbiology

07/25/19

Count colonies in the right way?
I use Rose bengal agar cloramfenicol for search yeast and molds for inclusion in petri plat. Which is the method correct for count? I'm not sure if i count everything or only the bigger one?
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Microbiology Replication

07/25/19

DNA polymerase I exonuclease activity?
Does DNA polymerase I in bacteria use forward or reverse exonuclease activity to remove RNA primers? One of my books says it uses 5' to 3', but another says it uses 3' to 5' exonuclease... more
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Microbiology Biochemistry Genetics

07/24/19

How does the polymerase protein know which gene to express?
I am not asking where the DNA or RNA polymerase starts to transcribe a gene. I want to know how does the polymerase know WHICH of thousands of genes on multiple chromsomes to pick at any one... more
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07/23/19

Can someone explain the color-changing unit (CCU) to me?
I've been physically carrying out serial tenfold dilutions on samples of Ureaplasma to work out the color-changing units (CCU). As a definition, the CCU is the highest dilution at which there is... more
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Microbiology

07/23/19

How do retroviruses exit the cell?
Do they just pass through the membrane? Is there some specific transporter or mechanism? Does it vary? I've seen pictures if retroviruses outside the cell but no details
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07/23/19

Does Penicillium roqueforti produce penicyllin?
I have recently discovered that blue cheese is produced with _Penicillium roqueforti_. As I know that some _Penicillinum sp._ produce penicyllin I wonder whether it is produced by _P. roqueforti_... more
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Microbiology Genetics Cells

07/23/19

How does the structure of dna determine the structure of proteins.
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Microbiology Yeast Growth Media

07/23/19

Earliest to use media after autoclaving?
I am autoclaving media to use later to inoculate yeast. How much time do I have to wait before using the media and adding the culture? Can I use it a few hours after autoclaving?
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Microbiology Experimental Design

07/23/19

Growing bacterial culture on gelatin?
I'm very new to experimental biology and don't know much about it. So, i was looking to grow some bacteria in petri dishes and looked up how to do it. Unfortunately, I'm finding it difficult to get... more
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Microbiology

07/22/19

How do chemists calculate the existence of billions of organisms?
So the packaging of Bio-Cultures Complex says that it contains a minimum of a billion viable organisms per capsule. How has such an estimate been drawn? Have they counted a smaller amount and... more
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Microbiology Bacteriology

07/22/19

Can a plastic degrading bacteria science fair project be recreated in a school lab?
i am just looking for a science fair project and am fascinated by this topic. i was wondering if a project concerning the isolation of plastic degrading bacteria could be done in a school lab. I am... more
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