00:01
So here we have been asked several questions.
00:02
And the first one is number six.
00:04
It says the accumulation of bacteria on a solid eager medium is called a, turbid growth, b, pathogenic, and c, colony, d, culture plate, e, none of the above.
00:23
So what is the correct answer? so the correct answer here is option c.
00:29
Correct option is option c.
00:36
Colony.
00:38
A colony of bacteria is a noticeable clamp of solid media bacteria.
00:44
A colony is described as a visible mass of microorganisms, all of which arise from a single mother cell.
00:53
So a colony is genetically similar clone of bacteria.
00:59
Okay.
01:01
So let's look at the next question, the second, which is number seven.
01:05
And number seven says that heat sensitive liquids can be sterilized by, a, pasteurization, b, hot air owing, c, refrigerator, d, filtration, and e, freezing, heat sensitive liquids can be sterilized by, and the correct answer is option, d, filtration, the correct option.
01:33
Is filtration.
01:37
So heat sensitive liquids are likely to damage or loses its original property due to heating.
01:44
To avoid this, to avoid this, filtration sterilization is used.
01:49
Filtration permits organisms depending on their size to be excluded.
01:54
Contaminants bigger than pulse on the membrane surface are trapped in the membrane filtration.
02:00
If the contaminants are less than the required particles reduce the porosity of the membrane and trap the product while passing the contaminants through the membrane so let's look at the next question which is the third question but here numbered 8 it says a solidifying agent used in media preparation is a solidifying agent used in preparation is a yeast extract b pep t.
02:37
Aga, d, glucose, e, a and b.
02:42
A solidifying agent used in media preparation is a solidifying agent used in media preparation.
02:54
And the correct answer is option c, eager.
02:59
Eager is a gelatinous substance obtained from marine algae, algae...