Micro Lab Final - UV light
0.0(0)
Studied by 1 person
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/4
There's no tags or description
Looks like no tags are added yet.
Last updated 9:24 PM on 4/22/23
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
5 Terms
1
New cards
What kind of radiation is UV light
non-ionizing radiation
2
New cards
Explain the molecular basis for the effect of UV light on the growth of the bacteria
* UV light damages cellular DNA → formation of dimers between adjacent pyrimidine bases
* leads to lethal consequences for unicellular organisms
* If DNA is not in the proper form → DNA polymerase can not transcribe to make mRNA→ translation will not occur and proteins will not be made
* without proteins that cell can not carry out metabolic functions and growth can not occur
* leads to lethal consequences for unicellular organisms
* If DNA is not in the proper form → DNA polymerase can not transcribe to make mRNA→ translation will not occur and proteins will not be made
* without proteins that cell can not carry out metabolic functions and growth can not occur
3
New cards
Is UV light penetrating
non-penetration
* if bacteria is covered it will not work (ex. capsule)
* mostly used to kill airborne or surface microbes
* if bacteria is covered it will not work (ex. capsule)
* mostly used to kill airborne or surface microbes
4
New cards
Predict what will happen when bacteria is exposed to UV light
the longer the UV light the less growth
5
New cards
What is the effect of UV light on endospore formation
* endospore formation will lead to resistance of UV light
* the endospore must be formed before UV light exposure, because it takes time to form the spore
* ex. growing bacteria under harsh conditions → spore formation and then placing under UV light
* the endospore must be formed before UV light exposure, because it takes time to form the spore
* ex. growing bacteria under harsh conditions → spore formation and then placing under UV light
Note 
Flashcards (61)