UConn MCB 2610 Final Lab Practical Exam Questions And Correct Answers.
3 views 0 purchase
Course
MCB 2610
Institution
MCB 2610
mear of the culture, you heat fix the slide before air drying it
completely. - answerFALSE
True/False: wiping down the bench with wescodyne is the last thing you do when leaving the
lab. - answerFALSE
What is the magnification value of the ONLY objective lens that should come in contact with
i...
UConn MCB 2610 Final Lab Practical Exam
Questions And Correct Answers.
The ________ method is a quick and easy way to isolate bacteria. - answer✔✔Streak plate
How many times do you get culture from the tube while performing a t-streak? - answer✔✔Once
Who do you contact to reschedule a lab? - answer✔✔Gino
The culture tubes are disposed of in the gray trash bin. True/false? - answer✔✔FALSE
What is the first thing you do after a spill? - answer✔✔Tell the TA
Which of the following is an indirect mode of transmission - an insect, a cellphone, a sneeze? -
answer✔✔Cellphone
What is the last thing you do before leaving lab? - answer✔✔Wash hands for 20 seconds
The outer cone is the hottest part of the flame. True/false? - answer✔✔FALSE
Where are slides disposed of? - answer✔✔Sharps container
What must you do to the loop before every use? - answer✔✔Heat in Bunsen-burner flame
True/False: When making a smear of the culture, you heat fix the slide before air drying it
completely. - answer✔✔FALSE
True/False: wiping down the bench with wescodyne is the last thing you do when leaving the
lab. - answer✔✔FALSE
What is the magnification value of the ONLY objective lens that should come in contact with
immersion oil? - answer✔✔100x
Pertaining to Gram stain, cells that retain crystal violet and appear purple are said to be_____. -
answer✔✔Gram positive
True/False: your name, the date, and sample information goes on the lid of the agar dish. -
answer✔✔FALSE
True/False: heat used during staining causes sporulation. - answer✔✔FALSE
True/False: malachite green stains the vegetative cells green, while the safranin stains
endospores pink. - answer✔✔FALSE
True/False: a vegetative cell is formed in response to certain environmental conditions such as
depletion of nutrients. - answer✔✔TRUE
True/False: Gram stains and spore stains are examples of simple stains. - answer✔✔FALSE
What causes bacterial endospore formation? - answer✔✔Response to environmental conditions,
i.e., lack of nutrients
What are the 4 phases of microbial growth? - answer✔✔Lag, exponential/log, stationary, death
True/False: we will measure the optical density over time to determine growth rate. -
answer✔✔TRUE
Define generation time. - answer✔✔Time for population to double
What does it mean for a culture to be in stationary phase? - answer✔✔Rate of replication
matches rate of death
True/False: you can use oil with the 40x objective lens. - answer✔✔FALSE
True/False: generation time is calculated in the log phase. - answer✔✔TRUE
What does it mean for a culture to be in log phase? - answer✔✔Rapid growth and replication;
each cell doubles
True/False: Gram positive bacteria have a thick peptidoglycan layer which retains safranin and
appears pink. - answer✔✔FALSE
True/False: the purpose of heating during the spore stain is to create an endospore. -
answer✔✔FALSE
What group of organisms does MacConkey agar select against? - answer✔✔Gram positive
True/False: complex media is made with a precise chemical composition. - answer✔✔FALSE
What organism does SF broth select for? - answer✔✔Enterococcus faecalis
What type of bacteria can be differentiated using an EnteroPluri tube? - answer✔✔Enteric
family of bacteria encompassing gram negative, non-sporeforming, facultative anaerobic rods
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 Thebright. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
