100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
Summary Molecules to Microbe £7.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. AQA
  4.  
  5. Biology
  6.  
  7. Unit 1 BIOL1 - Biology and disease (BIOLOGY)

Summary

Summary Molecules to Microbe
 19 views  0 purchase
  • Institution
  • AQA

These lecture notes are very helpful they can be useful to make your own notes they include diagrams which helps understand the content! These notes can be useful they can be used for diagrams!!!

Preview 1 out of 3  pages

Document information

  • May 26, 2021
  • 3
  • 2020/2021
  • Summary

Subjects

Written for

All documents for this subject (70)

Seller

avatar-seller
Neelam8900

Content preview

a. Gram negative > Gram positive > Spores
b. Gram negative > Spores > Gram positive
c. Gram positive > Gram negative > Spores
d. Spores > Gram positive > Gram negative

Disinfection is defined as:

a. The killing or removal of all living organisms and their viruses from on or within a material.
b. The use of agents that reduce, but may not eliminate, microbial numbers to a safe level.
c. A treatment that renders an object or inanimate surface safe to handle.
d. The elimination of microorganisms from inanimate objects or surfaces.

Which type of filter is most commonly used for liquid sterilisation?

a. Nucleopore filters
b. Depth filters.
c. Membrane filters.
d. Nitrocellulose filters.




Ozone is a:

a. Low level disinfectant.
b. Not a disinfectant.
c. High level disinfectant.
d. Intermediate level disinfectant

Chemicals that prevent bacterial growth but do not kill the cells are known as?

a. Biocides.
b. Bacteriophage.
c. Bacteriostatic.
d. Bacteriocides

Microbial death rate under a particular treatment usually occurs at:

a. At a variable rate as more cells are killed.
b. A constant linear rate.
c. A constant exponential rate.
d. Depends on the starting number of cells.

Sterilisation by heat functions by:

a. Denaturation of DNA.
b. Denaturation of protein.
c. Disruption of membrane structure.
d. All of these.

The thermal death time is:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Neelam8900. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £7.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

57413 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now

Start selling
£7.99
  • (0)
Add to cart
Added