BI 127 Lab @ GRCC Exam 2 (labs 11-14) Questions With Complete Solutions
0 view 0 purchase
Course
GRCC
Institution
GRCC
BI 127 Lab @ GRCC Exam 2 (labs 11-14)
Questions With Complete Solutions
if you want to raise the pH of a medium, what would you do? add a strong base
"floaties" at the bottom of a tube will indicate what? growth
a ring around the top of a tube will indicate what? growth
what does fastidious me...
BI 127 Lab @ GRCC Exam 2 (labs 11-14)
Questions With Complete Solutions
if you want to raise the pH of a medium, what would you do? add a strong base
"floaties" at the bottom of a tube will indicate what? growth
a ring around the top of a tube will indicate what? growth
what does fastidious mean? the organism depends on the environment to deliver ready-
made organic compounds
which kind organisms are the most fastidious and which are the least? autotrophs are least
fastidious
hetertrophs are most fastidious (even the least fastidious heterotroph is more fastidious than the
most fastidious autotroph)
what is a serial dilution? taking defined amounts of a liquid and adding it to another tube,
taking a defined amount of that liquid and so on; this will dilute the concentration with each
, BI 127 Lab @ GRCC Exam 2 (labs 11-14)
Questions With Complete Solutions
transfer (as long as the amount transferred is consistent the dilution should be a factor of 10...)
Then transfer from specific tubs by adding a small amount to an agar plate >> allows us to
monitor growth (want between 30-300 CFU's)
what is the formula for original cell density? # colony forming units
---------------------------
original sample volume
or
# CFU
-------------------
(10^#) x volume transferred
what words are used to define the shape of a colony? round
, BI 127 Lab @ GRCC Exam 2 (labs 11-14)
Questions With Complete Solutions
irregular
filamentous
rhizoid
what does an irregular shaped colony look like? looks like mountains from above in a
plane
what does a filamentous colony look like? like a frozen surface; like small branches but
not root-like
what does a rhizoid colony look like? big roots or branches coming off - continue
branching off of other branches
what are the words to describe different margins of a colony? (margin = edge of a colony
and what it's like on top)
smooth/entire
rhizoid
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 UpperClass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.99. You're not tied to anything after your purchase.
