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Why are the colonies growing on the top of the agar larger than the colonies growing in the agar?
Wiki User
∙ 9y ago
Well, first of all, the colonies growing on the surface of the agar medium are aerobic . . . that is, they need air - Oxygen - to survive.
The anaerobic colonies growing within the agar medium may simply be slower growing or maturing, for some reason. Perhaps that is simply due to their being anaerobic.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoThey are larger because they have more room to grow on the surface (better surface area) as opposed to being condensed into the medium.
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What are the surface colonies on a pour plate larger than those within the medium?
The surface colonies on a pour plate larger than those within the medium especially aerobic bacteria within the medium would be a restriction of growth. The restriction of growth would be due to the lack of oxygen.
How do bacillus and cocci differ on agar?
That really depends on what agar you are growing them on. If you are using growing agars such as BHI or blood, both will grow, and you won't be able to tell the difference when looking at them on the plate. If you use a selective agar that, lets say, will only grow cocci, then the bacilli won't grow. Or vice versa, if your selective agar only grows bacilli, then the cocci won't grow. If you use a differential agar, it may turn one a different color than the other -- for example, it may turn the bacillus blue, and the cocci may turn red. It is all dependent on the media you choose to grow your samples.
What else grows on an agar plate other than bacteria?
Theoretically, anything. As the agar is a non-selective agar many bugs can grow on nutrient agar. The only ones that can't are ones that have different growing conditions or different characteristics that makes it difficult or impossible to grow, but that is more uncommon.
What is the disadvantage of pour plate techniques?
One disadvantage of pour plates is that the embedded colonies will be much smaller than those which happen to be on the surface and must be carefully scored so that none are overlooked, also obligate aerobes may grow poorly if embedded in agar
What are asteroids larger than?
Asteroids are larger than Meteoroids.
Are new England farms larger or smaller than farms in the middle colonies?
With the climate harsh there is a short growing season, there for there are small farms than the middle colonies.
What is the advantage of using a nutrient agar plate over a nutrient agar slant?
Slants are better suited than agar plates, because they can be capped, preventing the agar and the culture from drying out. The cap also prevents airborne contaminants from entering the slant. Also, slants take up less storage space than an agar plate.
Yeast colonies larger than bacterial colonies?
Not necessarily, some Bacillus can have big colonies
What are the surface colonies on a pour plate larger than those within the medium?
The surface colonies on a pour plate larger than those within the medium especially aerobic bacteria within the medium would be a restriction of growth. The restriction of growth would be due to the lack of oxygen.
Why were the southern colonies better for growing crops than new England colonies?
New England colonies had land that was mainly filled with rocks, or sand.
Were New England farms larger than those in the middle colonies?
No the Middle Colonies had bigger farms :)
Where did most colonisist live?
Philadelphia was the largest city in the colonies but quickly New York City was larger in population. The northern colonies were larger in population than the southern colonies.
If you strongly suspect a nutrient agar slant culture is contaminated what method would you use to ascertain whether you are right or not?
You have to make subculture from this slant and after incubation you can observe how many types of microorganisms are present in the nutrient agar slant. If you have one colony shape so you have a pure nutrient agar slant but if you have more than one type of colonies so the nutrient agar slant is contaminated.
Were New England farms larger than those Southern Colonies?
New England farms were smaller because with cold climate,poor soil and short growing season to stop agriculture.The Southern Colonies were like the opposite.
Is Brazil larger than the Sahara desert?
No, the Sahara is larger than Brazil. Brazil is about 3.2 million square miles and the Sahara 3.3 and growing.
How do bacillus and cocci differ on agar?
That really depends on what agar you are growing them on. If you are using growing agars such as BHI or blood, both will grow, and you won't be able to tell the difference when looking at them on the plate. If you use a selective agar that, lets say, will only grow cocci, then the bacilli won't grow. Or vice versa, if your selective agar only grows bacilli, then the cocci won't grow. If you use a differential agar, it may turn one a different color than the other -- for example, it may turn the bacillus blue, and the cocci may turn red. It is all dependent on the media you choose to grow your samples.
Why were there fewer schools in Middle Colonies than there were in New England Colonies?
cause the farms in this fertile area were larger and the people lived farther apart than the people in New England.
