Exam (elaborations)
STRAIGHTERLINE MICROBIOLOGY QUIZ 2024
- Course
- BIO250L Microbiology Lab
- Institution
- Straighterline
STRAIGHTERLINE MICROBIOLOGY QUIZ 2024/ STRAIGHTERLINE MICROBIOLOGY QUIZ 2024
[Show more]
Content preview
STRAIGHTERLINE MICROBIOLOGY QUIZ 20241. In the nitrogen cycle, which of the following steps involves removal of
nitrogen from the atmosphere by bacteria: Nitrogen Fixation
2. If enough H+ ions are added to pure water to raise the H+ concentration
of the solution to ten times higher than the original concentration, what is
the resulting OH- concentration of the solution: 10-8 M
3. Which scientific field is involved in the identification, classification, and
naming of organisms: Taxonomy
. Which type of medium would be the best choice when shipping a sample of
bacteria from a clinic to a laboratory for testing: Transport-meduim
. Which activity is an example of biotechnology: the production of human
insulin
6. Which of the following is produced by adding 1% to 5% agar to nutrient
broth that is then boiled and cooled: A solid medium
. Most biochemical macromolecules are polymers, which are chains of...:
repeating monomers
. A reducing medium contains: substances that remove oxygen
. Which of the following parts of a microscope magnifies the specimen to
produce a real image of the specimen: Objective lens
,0. The two major groups of helminths are ___ and the ___: roundworm;
flatworms
11. All of the following pertain to virus envelopes except: located between
the capsid and nucleic acid
12. A protozoan having flagellum would be classified in the genus:
Trypanosoma
3. Antiviral drugs are often difficult to develop, largely because: viruses are
obligate intracellular parasites so the drugs must enter the host cell and often
cause toxic side effects in order to destroy the virus
4. The activation of a prophage is called...: induction
5. Endospores are: metabolically inactive, resistant to heat and chemical
destruction, resistant to destruction by radiation, living structures
6. The endosymbiotic theory has been developed to explain the emergence
of...: eukaryotes
7. A treatment for bacterial infections from the early 20th century has made a
comeback; the use of bacterial viruses to eliminate bacterial infections.
Which explanation most accurately describes the reason for return of this
treatment:
8. A negative RNA virus must first: synthesize a positive RNA copy of its genome
9. You've just isolated a new bacterium in pure culture, and you culture it on a
general purpose medium where its cells have a coccobacillus morphology.
When you examine the cells after culturing on a variety of differential media,
, you fine that in some cases, the cells appear as coccobacillus, but in others,
they can be filamentous, cocci, or club-shaped. The best explanation for
this observation is that: the bacterium is pleomorphic
20. Two functions of bacterial appendages are___ and ___: attachment;
motility
1. A group of protozoa that are not motile are the...: Plasmodium sp.
2. During the Gram stain, the appplication of alcohol results in the
decolorization of ___ cells: Gram-negative
3. Lysozyme is most effective against: gram positive organisms
4. The transfer of genes during bacterial conjugation involves rigid, tubular
appendages called ___: sex pili
5. Which of the following does not pertain to helminths: Members of the
Kingdom Protista
6. The site for ATP synthesis in bacterial cells is the...: cell membrane
7. The core of every virus particle always contains...: Either DNA or RNA
8. Which of the following is not a function of the eukaryotic glycocalyx: -
Movement
9. Two noncellular agents, smaller than viruses, are the infectious proteins
called _____ and the infectious RNA strands called _____.: Prions; viroids
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 igniteminds. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83100 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now