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A lab question on cellular respiration.

2007-02-11 13:57:05 · 5 answers · asked by Jennie 2 in Science & Mathematics Biology

5 answers

both produce ATP
both involve glycolysis as the first step

respiration is aerobic
fermentation is anaerobic
fermentation produces 2 ATP per glucose
respiration produce 32-38 ATP per glucose
respiration is more efficient

2007-02-11 14:00:05 · answer #1 · answered by Anonymous · 1 0

Respiration is a process that produces energy by the breakdown of molecules within the cell. It contains a large number of complex reactions, each one is catalyzed by an enzyme. When the molecules break down, energy that has been stored in their chemical bonds are released. Cellular respiration provides the energy for such additional functions as muscle contraction and the generation of electrical impulses. For example, simple food substances such as glucose are broken down and the energy that they contain is released. Respiration produces 38 ATP from one glucose molecule, making it a very effecient method for generating energy.



Fermentation is a process that does not require oxygen, uses glucose as a reactant, and produces ATP and a compound as the product. Lactate bactria forment milk producing yogurt and gives the yogart a sour taste. Fermentation produces less energy than aerobic respiration and produces energy directly from glucose. If fermentation occurs in a closed container, the build up of carbon dioxide will stop the reaction and produce a product like root beer which has virtually no alcohol in it. At the end of fermentation the container may be sealed producing a carbonated alcololic beverage such as beer.

So in a way Respiration and Fermentation are different.

We respire and Lactobacillus in curd ferments.

2007-02-12 07:13:13 · answer #2 · answered by Haley 1 · 1 0

Respiration is a process that produces energy by the breakdown of molecules within the cell. It contains a large number of complex reactions, each one is catalyzed by an enzyme. When the molecules break down, energy that has been stored in their chemical bonds are released. Cellular respiration provides the energy for such additional functions as muscle contraction and the generation of electrical impulses. For example, simple food substances such as glucose are broken down and the energy that they contain is released. Respiration produces 38 ATP from one glucose molecule, making it a very effecient method for generating energy.



Fermentation is a process that does not require oxygen, uses glucose as a reactant, and produces ATP and a compound as the product. Lactate bactria forment milk producing yogurt and gives the yogart a sour taste. Fermentation produces less energy than aerobic respiration and produces energy directly from glucose. If fermentation occurs in a closed container, the build up of carbon dioxide will stop the reaction and produce a product like root beer which has virtually no alcohol in it. At the end of fermentation the container may be sealed producing a carbonated alcololic beverage such as beer.

2007-02-11 22:01:58 · answer #3 · answered by kawaiisuzakuwarrior 4 · 1 0

Respiration and fermentation are both processes that make ATP.

Differences:
1. Respiration makes a net gain of 36-38 ATP from one molecule of glucose. Fermentation has a net gain of 2 ATP.
2. Aerobic respiration uses oxygen as a final electron acceptor. Fermentation does not use oxygen.
3. Respiration occurs in the mitochondria. Fermentation occurs in the cytoplasm.
4. Respiration's end products (in addition to ATP) are carbon dioxide and water. Fermentation's end products are carbon dioxide and alcohol in yeast or lactic acid in muscles.

2007-02-11 22:01:17 · answer #4 · answered by ecolink 7 · 1 0

respiration uses oxygen, and fermentation does not, but both produce ATP energy, which is the main source of energy for cells

also, respiration creates 38 ATP, and fermentation only produces 2
Respiration's first step is fermentation, but later, more steps are used to produce more energy

2007-02-11 22:04:06 · answer #5 · answered by richard r 1 · 1 0

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