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Why does The hands after plate has more colonies than the hands before plate?
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How do you determine the number of organisms in a water sample if your dilution plate has presence of spreading colonies?
To determine the number of organisms in a water sample choose a plate that has less than 300 but more than 30 colonies. Then count the number of colonies and record the results.
What determines the size of cultured colonies?
The size of the cultured colonies is usually determined by how densely the plate is populated. The more densely populated the plate, the greater the competition is among the microorganisms for nutrients. This competition results in the growth of reletively small colonies which tend to be merged together. On a more sparsely populated plate, there are enough nutrients for the microorganisms to grow sufficiently resulting in larger colonies.
Why is it important not to overlap previous streaks in each sector of the petri plate when carrying out a streak plate?
When streaking a plate, you are really trying to reduce the number as you go along. If you overlap, you will pickup more. What you want finally, is one or two separate colonies.
Why are plates with 25 to 250 colonies used for calculations?
Well UC Student, counting a plate between 20 and 200 colonies provides an accurate estimation of the total number of bacteria. Counting plates with less than 20 colonies would providen unreliable data, while plates with 200 or more colonies is too difficult to do with the human eye. Don't be scared to ask you tutor questions, A-UNIT
Why is it important not to overlap previous streaks in each sector of the petri dish when carrying out a streak plate?
When streaking a plate, you are really trying to reduce the number as you go along. If you overlap, you will pickup more. What you want finally, is one or two separate colonies.
How do you determine the number of organisms in a water sample if your dilution plate has presence of spreading colonies?
To determine the number of organisms in a water sample choose a plate that has less than 300 but more than 30 colonies. Then count the number of colonies and record the results.
What does the streak plate method have over the pour plate method?
It is more likely to give individual colonies regardless of the concentration of the original source. With pour plates, you might have to use several plates with different dilutions of inoculum to get individual colonies.
Which of these was true about North American colonies held by Britain and France before the French and Indian War?
Britain colonies had more people bu french colonies held more land
What was true about Native American colonies help by Britain and France before the French and Indian War?
British colonies had more people, but French colonies held more land.
What determines the size of cultured colonies?
The size of the cultured colonies is usually determined by how densely the plate is populated. The more densely populated the plate, the greater the competition is among the microorganisms for nutrients. This competition results in the growth of reletively small colonies which tend to be merged together. On a more sparsely populated plate, there are enough nutrients for the microorganisms to grow sufficiently resulting in larger colonies.
What was true about north American colonies held by Britain and France before french and Indian war?
British colonies had more people, but French colonies held more land.-APEX
Which colonies changed more before becoming states the nortern or southern colonies?
southern.
Why was there more slavory in the southern English colonies than the New England colonies?
RRrrrgh, I knew that before! I THINK there was more slavery in the southern colonies because it was hotter(closer to the equator), and because the people were lazier.
Why is it important not to overlap previous streaks in each sector of the petri plate when carrying out a streak plate?
When streaking a plate, you are really trying to reduce the number as you go along. If you overlap, you will pickup more. What you want finally, is one or two separate colonies.
What is the title of this Christian song with lyrics I will wait reach out my hands before you I will come running into your hands and also the artist?
More.
What were used in farms before the tools were not invented?
Nothing more than there hands.
Should you wash your hands before fingering your girlfriend?
Yes, you should always wash your hands before fingering a girl this prevents pregnancy (if you have previously have sperm on your hands) and also STI's. You should also wash your hands after fingering a girl, its more hygienic.
