Wednesday, February 20, 2008

What is the difference between cellular respreation and fermentation?

9 comments:

tstratton said...

There is no clear difference between cellular respiration and fermentation as that fermentation is a form of cellular respiration; it's just performed by yeast.

Mr. Wilson said...
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Mr. Wilson said...

Is that true? What is fermentation? What carries organism carries out fermentation? What is necessary for fermentation? for cellular respiration? What are the products? What are the "reactants"? (In other words, what reacts/on the left hand side of the chemical equation)

cebeling said...

Fermentation is when yeast cells break down sugar without the presence of oxygen, and the by-product is alcohol. Cellular respiration is when the sugar and oxygen in an organism's body react to the stored chemical energy in the body and the by-products are carbon dioxide and water.

PS. I think that's the right answer....sorry if I'm wrong.

Christopher Noda said...

Yeast is a single celled organism that makes bread rise and beer bubbly. It is able to perform these activities because it undergoes a process of fermentation. This process takes yeast energy or photosynthesis and makes energy out of it. By dong this the yeast is able to grow bubbly and release carbon dioxide into the air. Although this process does not differ from the process we use called Cellular Respiration there are a lot of similarities. First they both have a bi product of CO2. Second they are both performed by living organism's quite regularly, and third in both of these processes sugar is the input, and fuel or energy is the output. Since they are so similar, why aren't we the same organism? Ill tell you why. Because4 the way we perform cellular respiration takes a lot more energy to be accomplished. Our metabolism takes a lot of energy to function, and the brain and muscles need energy too. Our whole body need these fuels. While in yeast their body is not so big and therefore needs less energy too fuel.
To end, Fermentation is the process in which yeast makes energy. While it is very similar to cellular respiration it is not the same thing. Fermentation is the only the basic version of cellular respiration. That is the similarities and Differences of Carbon Dioxide.

DeAnna said...

Fermentation is a type of cellular respiration. Yeast, which ferments is a single-celled fungi. Fermentation is when yeast consumes sugar, and a by-product of this is C02.

Meagan M. said...

Fermentation and yeast are similar. They both include oxygen and glucose reacting to release energy and also give off CO2 and water. However, one thing that has not been mentioned in earlier posts is the difference in the temperatures at which the two processes occur. Cellular respiration is a general term for the cycle that occurs in the cells of all organisms, so the optimum temperature would vary from organism to organism. Fermentation, however, is specific to yeast. Yeast operate best at warm temperatures, just under 40 degrees Celsius. Not all organisms have that same optimum temperature, and therefore might not experience the same rate of energy breakdown.

copalmer said...

I agree with Deanna, fermentation is a type of cellular respiration performed by the cells of yeast. Yeast is an organism, so it has to have cells, and therefore in order for the organism to be able to operate properly, it needs to metabolize. Metabolism is the rate at which cellular respiration happens, so cellular respiration is important to the existence of any organism.

copalmer said...
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