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
microbiology Question and answers rated A+ $13.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. Microbiology
  4.  
  5. Microbiology

Exam (elaborations)

microbiology Question and answers rated A+
 7 views  0 purchase
  • Course
  • Microbiology
  • Institution
  • Microbiology

microbiology Question and answers rated A+ Acelluar Lacks protein and capsid coating RNA molecule At this point only infects plants, but may possibly be contributing factor to multiple diseases in animals - correct answer viroids -are small, infectious proteins. - Lack RNA and DNA - ...

[Show more]

Preview 3 out of 24  pages

Document information

  • August 11, 2024
  • 24
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

Written for

  • Microbiology
  • Microbiology

Seller

avatar-seller
Carzola98

Reviews received

Content preview

microbiology
Acelluar
Lacks protein and capsid coating
RNA molecule
At this point only infects plants, but may possibly be contributing factor to
multiple diseases in animals - correct answer ✔viroids


-are small, infectious proteins.
- Lack RNA and DNA
- They cause many progressive, fatal, neurological diseases.
-Scrapie in sheep.
-Bovine spongiform encephalopathy (or mad cow disease)
-Creutzfeldt-Jakob disease in humans
- Chronic wasting disease in elk and deer
- May be involved in some feline diseases - correct answer ✔Prions


Symptoms may include dementia, loss of coordination, difficulty sleeping, and
impaired memory and intellect.
- All prion diseases cause spongiform encephalopathy; the brain becomes
riddled with holes, like a sponge. - correct answer ✔prion disease


Microcope - correct answer ✔optical instrument consisting of a lens or
combination of lenses for making enlarged images of minute objects


resolving power - correct answer ✔optical instrument to produce separate
images of closely placed objects

,compound microscope - correct answer ✔a light microscope that uses more
than one lens to magnify an object


objects appear against a bright background. - correct answer ✔brightfield
condenser


objects appear as bright images against a dark background - correct answer
✔darkfield condenser


use a beam of electrons rather than light to make an image and can achieve
higher resolution than light microscopes.
-process kills the sample! - correct answer ✔Electron Microscopes


We can classify microbes as ? - correct answer ✔Acellular, Prokaryotic,
Archaea, Eukaryotic


- are acellular: they are not living cells!
-have either DNA or RNA
- cannot replicate on their own; they depend on a host cell.
-cannot divide by binary fission, mitosis, or meiosis.
-cannot produce energy.
-depend on the ribosomes, enzymes, and other molecules of the host to
produce proteins and replicate DNA.
- can only be seen by an electron microscope - correct answer ✔viruses


have a genome of either DNA or RNA surrounded by a protein coat called a
capsid.

, Some also have a lipid and polysaccharide outer coating. - correct answer
✔virus structure


viruses can infect what type of organisms? - correct answer ✔Animals,
Plants, Bacteria, Archaea


The virus attaches to a cell bearing the appropriate markers on its surface.
The virus can only infect cells they can recognize and attach to; this is why
some viruses that can infect dogs but not us and vice versa. - correct answer
✔step 1 adsorption


The virus injects in genome into the cell - correct answer ✔step 2 penetration


The viral nucleic acid is released from the capsid. - correct answer ✔step 3
uncoating


The viral nucleic acid controls the host cell. The host cell produces more viral
nucleic acid and viral proteins. This step can be postponed for a variable
period; this is called latent infection. - correct answer ✔step 4 biosynthesis


The virus "pieces" the host cell has made are assembled into new viruses. -
correct answer ✔step 5 assembly


The new virions are released from the host cell.
This may involve destruction of the host cell or "budding" from the cell
membrane. - correct answer ✔step 6 release


The protein involved is a normal human and animal protein active in the brain.
cannot be disinfected with boiling or irradiation. Strong bleach may work.

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 or Stuvia-credit 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 Carzola98. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

53022 documents were sold in the last 30 days

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

Start selling
$13.99
  • (0)
Add to cart
Added