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No, of course it is possible that one could start out with an already diluted sample in the first step. So then perhaps in the third sector some isolated colonies may form, because the amount of bacteria have been diluted enough.

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What advantage does the streak plate method have over the pour plate method?

A disadvantage of the streak plate technique could be colony isolation problems. If the streaking technique is not done properly or if there is too much of an organism present on the inoculating loop then the cells can cluster and form what looks like one colony but it can actually be a couple colonies (made from a couple cells). This can cause an inaccurate colony forming unit count.


What are three uses of bacteria in food production and other industries?

Although bacteria are often mistakenly associated only with disease, bacteria also have useful functions.1) Bacteria are part of chemical cycles during which they release essential elements such as carbon and nitrogen for recycling.2) Bacteria decompose dead and decaying organic matter, assist animal digestion of food, and produce chemicals such as ethyl alcohol, butyl alcohol, acetic acid, and acetone.3) Bacteria also aid in the production of food products such as cheese, butter, sauerkraut, coffee, wine, and cocoa. Bacteria can be an integral part of the manufacture of silk, cotton, and rubber. 4) Bacteria synthesize certain antibiotics. Bacteria that can digest and dissolve are used to clean up oil spills.


Which bone articulates with the 4th metacarpal?

The fourth metacarpal bone articulates with the fourth proximal phalanx in the hand.


What is the fourth most abundant mineral in the body?

Magnesium is the fourth most abundant mineral in the body.


What are the differences between streak plate technique and pour plate technique?

Streak Plate:Pure colonies of bacterial or other microorganisms can be obtained on petri dishes by streak plate. The microbial mixture is transfered to the edge of an agar plate with an inoculating loop or swab and then streaked out over the surface in one of several patterns. After the first sector is streaked in dish, the inoculating loop is sterlized and an inoculum for the second sector is obtained from the first sector. The same is done for third and fourth sector. Thus this is a dilution process. Eventually, very few cells will be on inoculating loop, a single cells will drop from it as it is rubbed along the agar surface. These develop into seprate colonies.Pour Plate:Extensively used with procaryotes and fungi, a pour plate also can yield isolated colonies. The original sample is diluted several times to reduce the microbial population sufficiently to obtain separate colonies when plating. Then small volumes of several diluted samples are mixed with liquid agar that has been cooled to about 45oC and the mixture are poured immediately into sterile culture dishes. Most bacteria and fungi are not killed by a brief exposure to the warm agar. After the agar has hardened each cell is fixed in place and forms an individual colony.

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What advantage does the streak plate method have over the pour plate method?

A disadvantage of the streak plate technique could be colony isolation problems. If the streaking technique is not done properly or if there is too much of an organism present on the inoculating loop then the cells can cluster and form what looks like one colony but it can actually be a couple colonies (made from a couple cells). This can cause an inaccurate colony forming unit count.


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