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UConn MCB 2610 Final Lab Practical (Questions & Answers) Rated 100% $7.99   Add to cart

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UConn MCB 2610 Final Lab Practical (Questions & Answers) Rated 100%

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  • Course
  • UConn MCB 2610
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  • UConn MCB 2610

Chemicals used to decrease the number of microbes on living tissues are called _____ - Antiseptics A Durham tube is included in the LT broth tubes to detect _____, a byproduct of lactose fermentation. - Gas _____ (lytic/lysogenic) phages can integrate its DNA into the host genome. - Lytic ____...

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  • August 23, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • UConn MCB 2610
  • UConn MCB 2610
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PatrickKaylian
UConn MCB 2610 Final Lab Practical
Chemicals used to decrease the number of microbes on living tissues are called _____ -
Antiseptics



A Durham tube is included in the LT broth tubes to detect _____, a byproduct of lactose fermentation. -
Gas



_____ (lytic/lysogenic) phages can integrate its DNA into the host genome. - Lytic



_____ will occur around the colonies, indicating amylase production and starch utilization. - Red
dying from iodine



_______ is an opportunistic pathogen that commonly causes staph infections. - Staphylococcus
aureus



A _____ agent does not kill a microorganism, but rather just inhibits its growth. - Bacteriostatic



A clear area due to lysis by phage in a lawn of host cells is called a - Plaque



A confluent growth of cells in the soft agar is called a _____ - Lawn

An antibiotic that is effective against a wide varity of pathogenic microorganisms is called a _____
antibiotic. - Broad spectrum



Antiseptic chemicals are used on _____. - Living tissue



Bacteria can prevent phage attachment and escape infection by acquiring mutations in genes which alter
their _____ - Cell surface receptors

, Chemicals used to decrease the number of microbes on inanimate objects are called _____ -
Disinfectants




Coliforms are a subgroup of enteric bacteria classified by their ability to ferment which sugar? -
Lactose



Define generation time. - Time for population to double



During the lytic infection process, what does the phage particle inject into the host cells? -
DNA/genome



Given an example of a fomite. - Anything that people touch/use regularly



Growth concentrated at the bottom of a thioglycolate broth tube indicates the organism is an
aerobe/anaerobe? - Anaerobe



Growth only along the path of the inoculating needle indicates that the bacteria is motile/non-motile. -
Non-motile



How is casein hydrolysis detected? - Clearing around growth



How many times do you get culture from the tube while performing a t-streak? - Once



If a nitrate broth tube does not change color after adding nitrate reagents A&B and zinc, did nitrate
reduction occur? - Yes



If a nitrate broth tube does not change color after the addition of nitrate reagents A&B, but turns red
with the addition of zinc, did nitrate reduction occur? - No

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