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UV Sensitive Yeast Experiment
By Katelyn Owens
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Last updated over 1 year ago
17 questions
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Question 1
1.
How does UV light damage DNA?
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Question 2
2.
State one reasons why yeasts are model systems to study the effects of UV light. Hint, there is more information on the next page.
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Question 3
3.
What type of yeast cannot repair its DNA when exposed to UV light?
A. Wild-type Yeast
B. UV-sensitive Yeast
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Question 9
9.
Write down
one
observation that you have about all the plates.
Question 10
10.
Write down
one
observation that you have about the Wild-Type Yeast.
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
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Question 11
11.
Write down
one
observation that you have about the UV sensitive yeast with SPF 15
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
3
Question 12
12.
Write down
one
observation that you have about the UV sensitive yeast with SPF 70
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
13
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Question 13
13.
Write down
one
observation that you have about the UV sensitive yeast that was covered in tin foil
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
14
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Question 14
14.
Write down
one
observation that you have about the UV sensitive yeast that was not covered (fully exposed to the UV radiation)
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
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Question 15
15.
Write down
one
observation that you have about all four UV sensitive plates.
Some things you can mention: yeast growth on the plate (a lot, a little, no growth)
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Question 16
16.
In your response, be sure to state if the hypothesis was supported and provide 2 pieces of evidence.
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Question 17
17.
Be sure to state if the claim is supported or not supported. Provide reasoning with evidence from the lab.
Question 4
4.
According the the hypothesis, what UV senstive yeast will grow the most?
A. UV yeast that is uncovered
B. UV yeast that is covered with SPF 15
C. UV yeast that is covered with SPF 70
D. UV yeast that is fully covered
Question 5
5.
The
independent variable
is
A. the sunscreen applied
B. the amount of UV radiation
C. Yeast growth
D. The time that yeast was exposed to UV radiation
Question 6
6.
The
dependent variable
is
A. the sunscreen applied
B. the amount of UV radiation
C. Yeast growth
D. The time that yeast was exposed to UV radiation
Question 7
7.
The yeast was spread on the plate in what type of pattern?
A. Zig-zag
B. Parallel lines
C. an X
D. A tic tac toe pattern
Question 8
8.
How long were the plates exposed to UV light for?
A. 5 minutes
B. 10 minutes
C. 15 minutes
D. 20 minutes
