11 ATAR DNA extraction-validation revision
Authored by Louise Rao
Science
11th Grade
Used 21+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is used to break apart the cells from each other when extracting dna from fruit?
Lemon juice
Vinegar
Salt water
Sugar water
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is added to the fruit soup to rupture the cell membranes and release the dna?
Vinegar
Bleach
Ammonia
Detergent
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is used to make the dna insoluble during the extraction process?
Hot water
Cold water
Methanol
Ethanol
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the purpose of adding salt to the fruit soup during dna extraction?
To remove the dna
To make the dna more soluble
To clump the dna together
To break down the dna
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the role of protease enzyme in the dna extraction process?
To remove the dna
To increase the dna length
To break down the proteins around the dna
To make the dna more soluble
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the purpose of adding ice cold ethanol to the mixture during dna extraction?
To break down the dna
To slow down the action of enzymes
To speed up the action of enzymes
To remove the dna
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why do you not crush the strawberries too much?
To maintain the natural colour of the strawberries
It will cause the DNA to degrade
To avoid releasing excess sugar
To prevent contamination if you break the bad
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