Aseptic technique refers and consider two parallel cultures

1. Aseptic technique refers to
        The microbial inoculum placed into a test tube or onto a petridish.
        The prevention of contamination.
        The isolation of on species of bacteria from a mixedcommunity.
        The autoclave or sterilizing procedures.
        Cleanliness in the laboratory.

2. This method can be used to sterilize a liquid media withoutharming heat labile ingredients.
        Cold filtration
        AIDition of ethylene oxide to the media

3. Consider two parallel cultures. They are in all ways identicalexcept that one contains test substance X. You observe that abacterium you are studying grows equally well in both media.Therefore, test substance X is ___________.
        A macronutrient
        A micronutrient
        An essential nutrient
        A toxin
        Not a nutrient

4. A microbe uses CO2 as its sole source of carbon andoxidizes H2 as its source of energy, to whichnutritional group does this microbe belong?

5. A mutant bacterium does not produce a functional hydroxamate.This bacterium would have difficulty obtaining ___________.
        Hydrogen sulfide

6. A medium containing methylene blue and incubated at 55º Cenriches for ______.
        Mesophilic mycoplasma
        Hyperthermophilic gram negatives
        Gram positives
        Thermophilic gram negatives
        Thermophilic gram positives

7. Bacterium “A” has a growth rate constant of 4doubles/hour. Bacterium “B” has a generation time of0.25 hours/double. Which bacterium grows faster?
        “A” grows faster than “B”
        “B” grows faster than “A”
        A” and “B” grow at the same rate
        No conclusion can be made from this data

8. Assume you inoculated 100 cells into 100 ml of nutrient broth.You then inoculated 100 cells of the same species into 200 ml ofnutrient broth. After incubation for 12 hours, you should have
        More cells in the 100 ml
        More cells in the 200 ml
        The same number of cells in both.

9.  _________ halodurics use K+ as their osmolyte.

10. A medium containing 3.2% NaCl and 0.025% phenethyl alcoholwould enrich for _________.
        Gram-negative halodurics
        Gram-negative halophiles
        Gram-positive hyperhalophiles
        Gram-positive halophiles

Order a similar paper and get 15% discount. Use the coupon code GILB

Dr. Padma Myers
Dr. Padma Myers
98% Success Rate
Read More
“Hello, I deliver nursing papers on time following instructions from the client. My primary goal is customer satisfaction. Welcome for plagiarism free papers”
Stern Frea
Stern Frea
98% Success Rate
Read More
Hi! I am an English Language and Literature graduate; I have written many academic essays, including argumentative essays, research papers, and literary analysis.
Dr. Ishid Elsa
Dr. Ishid Elsa
98% Success Rate
Read More
"Hi, count on me to deliver quality papers that meet your expectations. I write well researched papers in the fields of nursing and medicine".
Dr. Paul P. Klug
Dr. Paul P. Klug
99% Success Rate
Read More
"A top writer with proven reliability and experience. I have a 99% success rate, overall rating of 10. Hire me for quality custom written nursing papers. Thank you"

How Our Essay Writing Service Works

Tell Us Your Requirements

Fill out order details and instructions, then upload any files or additional materials if needed. Then, confirm your order by clicking “Place an Order.”

Make your payment

Your payment is processed by a secure system. We accept Mastercard, Visa, Amex, and Discover. We don’t share any informati.on with third parties

The Writing Process

You can communicate with your writer. Clarify or track order with our customer support team. Upload all the necessary files for the writer to use.

Download your paper

Check your paper on your client profile. If it meets your requirements, approve and download. If any changes are needed, request a revision to be done.

Recent Questions

Stay In Touch!

Leave your email and get discount promo codes and the best essay samples from our writers!