0:00
Hello students.
00:01
Now in this question they're asking regarding the broth culture and agar's land, if by just looking at it, can you tell if it is a pure culture or not? now, if we observe in case of a pure broth culture, right? in case of broad culture, what will you observe? you will observe that it is a liquid culture, correct? so in this liquid culture, the organisms that are present, you have no idea which organisms they are.
00:30
All you can see is that the cells are there, right? you can see the bacterial cells are there based on the turbidity, correct? you measure the turbidity, you can say that, okay, fine, there are so many cells present, right? but can you observe if it is a pure culture or not? so, in this case, we can say that it is not possible to observe if the culture is pure or not in case of the broth culture, right? coming to the next part, wherein agar slant they have asked, right? in case of agar slant, what do you observe? you observe that there's a slant like this, right? and then there's the agar that is present here.
01:17
There's a streak above on the surface rather like this...