Aseptic technique refers and consider two parallel cultures | Homework Helpers

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

Don't use plagiarized sources. Get Your Custom Essay on
Aseptic technique refers and consider two parallel cultures | Homework Helpers
Get an essay WRITTEN FOR YOU, Plagiarism free, and by an EXPERT!
Order Essay

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

Calculate your paper price
Pages (550 words)
Approximate price: -

Why Choose Us

Top quality papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional academic writers

We have hired a team of professional writers experienced in academic and business writing. Most of them are native speakers and PhD holders able to take care of any assignment you need help with.

Free revisions

If you feel that we missed something, send the order for a free revision. You will have 10 days to send the order for revision after you receive the final paper. You can either do it on your own after signing in to your personal account or by contacting our support.

On-time delivery

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & confidential

We use several checkers to make sure that all papers you receive are plagiarism-free. Our editors carefully go through all in-text citations. We also promise full confidentiality in all our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.


Essay Writing Service

You are welcome to choose your academic level and the type of your paper. Our academic experts will gladly help you with essays, case studies, research papers and other assignments.


Admission help & business writing

You can be positive that we will be here 24/7 to help you get accepted to the Master’s program at the TOP-universities or help you get a well-paid position.


Editing your paper

Our academic writers and editors will help you submit a well-structured and organized paper just on time. We will ensure that your final paper is of the highest quality and absolutely free of mistakes.


Revising your paper

Our academic writers and editors will help you with unlimited number of revisions in case you need any customization of your academic papers