BIOS 242 Week 3 Quiz: Summer 2021
1. Question: An organism that uses CO2 for its carbon needs and sunlight for its energy needs would be called a
2. Question: An obligate saprobe differs from a parasite in that
3. Question: Cultures of a bacteria strain were incubated in a refrigerator (5oC),...
1.
Question: An organism that uses CO2 for its carbon needs and sunlight for its energy
needs would be called a .
a) photoautotroph
b) halotroph
c) saprobe
d) chemoheterotroph
e) heterotroph
2.
Question: An obligate saprobe differs from a parasite in that
A) a saprobe is a fungus, but a parasite can be any type of microbe.
B) a saprobe does not harm a host that it lives on, whereas a parasite does harm a host.
C) a saprobe cannot infect a human, but a parasite is always infectious.
D) a saprobe derive nutrients from dead plants and animals, but a parasite derives nutrients
from living plants and animals.
3.
Question: Cultures of a bacteria strain were incubated in a refrigerator (5 oC), on a lab bench
(22oC), in a 37oC incubator, and in a 50oC incubator. After incubation, there was no growth
at 37oC and 50oC, slight growth in the refrigerator, and abundant growth on the lab bench
top. Which term best describes this organism?
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 frackasaura. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.48. You're not tied to anything after your purchase.
