

Bacterial Handling and Streaking Techniques
Interactive Video
•
Biology
•
9th - 10th Grade
•
Practice Problem
•
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 primary goal when streaking a petri plate?
To mix different types of bacteria
To obtain single isolated colonies
To cover the entire plate with bacteria
To create a thick layer of bacteria
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to sterilize the inoculating loop before streaking?
To dry the loop
To make the loop shiny
To heat the bacteria
To prevent contamination
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do after sterilizing the loop before using it on bacteria?
Use it immediately
Let it cool or cool it in the agar
Dip it in water
Wave it in the air
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many times should you drag the loop through sector one before spreading to sector two?
Once
Four times
Three times
Twice
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of rotating the petri plate during the streaking process?
To ensure even distribution across sectors
To confuse the bacteria
To make it look interesting
To dry the plate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key difference when handling bacteria from a petri plate compared to a culture tube?
You can use a hot loop on a petri plate
You must cool the loop before touching the petri plate
You can scrape directly with a hot loop
You should not sterilize the loop
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in inoculating a broth tube with bacteria from a petri plate?
Add bacteria to the tube
Remove the cap with a little finger
Shake the tube
Flame the tube
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