00:02
Hi there.
00:03
Hi, in this question, you are working with aseptic technique while working with bacterial cultures.
00:11
And aseptic technique means that you are trying to prevent contamination.
00:26
So both of your culture, you don't want to get your culture contaminated, and you don't want to contaminate anything around, including yourself, with your culture.
00:37
So aseptic technique is the technique that prevents contamination.
00:45
So we have four options here.
00:48
I'm just going to assign them a, b, c, and d.
00:51
So as we're looking at them, we can talk about each one.
00:55
Letter a says you should only heat your inoculating loop before you take your pure culture.
01:01
Well, that is false because you also need to heat it afterwards.
01:14
So you take your culture, you put it where you want it, whether you're streaking a plate with it or putting it into nutrient broth.
01:21
But then you heat the loop again to destroy anything that is left on that loop.
01:28
So letter a is false.
01:30
Letter b says that you're cleaning your workstation.
01:33
You're using 70 % alcohol or another approved disinfectant.
01:39
And it says both before and after you work...