Exam (elaborations)
MIP 302 - Exam 1 2024 with Answers to Questions
- Course
- Institution
MIP 302 - Exam 1 2024 with Answers to Questions
[Show more]
Content preview
MIP 302 - Exam 1 2024 with Answers toQuestions
How do molds reproduce? - ✔✔Yeasts reproduce asexually by budding and sexually
through the production of spores; molds and mushrooms reproduce asexually through
spores and sexually through gamete and spore formation
What do yeasts produce under aerobic conditions? - ✔✔Carbon dioxide
What do yeasts produce under anaerobic conditions? - ✔✔Carbon dioxide and
alcohol through fermentation
What are hyphae? - ✔✔Long, threadlike filaments that join together to form the
mycelium
What are hyphae called when protoplasms stream continuously through them? -
✔✔Coenocytic hyphae
What are hyphae called when they have cross walls between them? - ✔✔Septate
hyphae
What are the different variations of hyphae? - ✔✔Coenocytic hyphae and septate
hyphae
What are mycelium? - ✔✔A network of hyphae
,What are sporangium? - ✔✔Aerial hyphae that produce spores; give molds their
'hairy' appearance
What are spores? - ✔✔a minute, typically one-celled, reproductive unit capable of
giving rise to a new individual without sexual fusion
When preparing a slide for staining, why is it important to only place a small amount of
cells on the slide? - ✔✔So as not to saturate the slide while viewing it
Why are slides allowed to dry completely before heat-fixing? - ✔✔So that we don't
boil the microbes and cause them to pop
How does one determine whether one's cells are algae or protozoans? - ✔✔Algae are
photosynthetic so they will appear green or yellow; protozoa are usually motile
What is the function of protozoa in rumen fluid? - ✔✔Producing the enzymes that
degrade cellulose which allows the host to use it as an energy source
How do you calculate total magnification? - ✔✔Total Magnification = Objective
Magnification x Ocular Magnification
How do you calculate the resolving power of a microscope? - ✔✔Resolving Power =
(0.5 x Wavelength)/Numerical Aperture
What does resolving power mean? - ✔✔The microscope's ability to distinguish
between two objects that are very close together
What does numerical aperture mean? - ✔✔A lens' ability to gather light
, Would a microscope with a resolving power of 0.42 um or 0.2um be better for viewing
bacteria? Why? - ✔✔0.2um because it would have a lower resolving power meaning
you would better be able to distinguish between two bacteria that are very close
together
What is oil immersion? - ✔✔100x objective magnification using a drop of oil
Why do we use oil immersion? - ✔✔To get a better resolving power for viewing
organisms
Why is oil immersion only used with the 100x objective lens? - ✔✔To minimize
refraction and maximize the amount of light entering the lens
What is the difference between tryptic soy agar and tryptic soy broth? - ✔✔TSB is a
broth so it is liquid while TSA is an agar so it is solid; TSB allows you to determine if
bacteria are present but no other information; TSA allows you to isolate the bacteria
What kind of media is tryptic soy? - ✔✔All purpose medium that supports the growth
of bacteria that do not have special nutritional needs
What is turbidity? - ✔✔How cloudy a broth is
Why are broths and slants better suited as culture media as opposed to isolation media?
- ✔✔They allow you to see that bacteria have grown but provides no information as
to the types of bacteria
Why are agar plates well suited for bacterial isolation? - ✔✔They allow you to isolate
the bacteria and view the types of bacteria present
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 Examsplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81531 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now