
Coliform Bacteria Testing Results

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using agar in petri dishes for this experiment?
To provide a medium for bacteria to grow
To sterilize the water samples
To change the color of the bacteria
To prevent contamination from the air
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to use a sterile pipette for each water sample?
To make the water samples more visible
To speed up the experiment
To prevent cross-contamination
To ensure accurate measurement
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the result of the coliform bacteria test for the tap water sample?
Negative with some beneficial bacteria
Positive with one colony
Negative with no colonies
Positive with several colonies
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did the fish tank water test negative for coliform bacteria?
The water was boiled before testing
There are no mammals in the fish tank
The water was treated with chemicals
The fish tank was recently cleaned
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the result of the coliform bacteria test for the Santa Clarita River water?
Negative with some beneficial bacteria
Negative with no colonies
Positive with two small colonies
Positive with five large colonies
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the result of the coliform bacteria test for the Gilbert Arizona riparian Preserve water?
Positive with one colony
Negative with some beneficial bacteria
Negative with no coliform bacteria
Positive with several colonies
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the result of the coliform bacteria test for the bottled water sample?
Negative with some beneficial bacteria
Positive with several colonies
Positive with one colony
Negative with no coliform bacteria
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