Lab 12: Effect of Ultraviolet Light on Bacteria Growth

0.0(0)
studied byStudied by 0 people
0.0(0)
full-widthCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/14

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

15 Terms

1
New cards

ultraviolet wavelength range

400 and 4 nm

2
New cards

UV with a wavelength of what can be absorbed by DNA

260nm

3
New cards

non-ionizing example

UV

4
New cards

ionizing example

gamma rays

5
New cards

would you expect UV radiation to effectively sterilize prepackaged foods? explain.

no, non-ionizing cannot penetrate the packaging

6
New cards

what wavelength of ultraviolet light is the most germicidal

260nm, non-ionizing, doesn’t penetrate

7
New cards

what species used in this experiment was more tolerant to the UV exposure?

Bacillus cereus due to endospores

8
New cards

gamma

ionizing, penetrate

9
New cards

260nm

most lethal, causes pyrimidine dimers

10
New cards

+++

normal, control level growth

11
New cards

++

medium level growth

12
New cards

+

low level growth

13
New cards

0

no growth

14
New cards

Bacillus cereus longest exposure time tolerated

4min

15
New cards

Staphylococcus aureus longest exposure time tolerated

1min