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Short Answer:

In cellular respiration Oxygen and Glucose, or C6H12O6, are broken down and used to produce ATP, adenosine triphosphate, CO2, and water.

Long Answer:

Glycolysis -> Kreb's Cycle -> Electron Transport Chain -> Chemiosmosis

Glycolysis: Glucose + 2 ATP -> 2 Pyruvate + 4 ATP+2 NADH

Glucose is ingested by the organism and brought into the cell through active transport. The Glucose molecule is phosphorylated, that is a phospate group is attached to both ends, and pulled apart. The phosphate group is then detatched from the split glucose and attached to ADP by an enzyme, forming ATP and Pyruvate.

Kreb's Cycle: 2 Pyruvate+ 2 H2O -> 8 NADH + 2 FADH2 + 2 ATP + 4 CO2

Pyruvate is oxydized to form Acytl-CoA which is inserted into the Kreb's Cycle. This action produces 2 NADH molecules. When in the Kreb's Cycle, the Acytl-CoA is changed, removing 2 Carbon atoms in the form of CO2, and generating 1 ATP for each pyruvate that entered the cycle. Hydrogen atoms are removed during this cycle and attached to the electron carriers NAD and FAD for use in the Electron transport Chain.

Electron Tranasport Chain and Chemiosmosis: 10 NADH + 2 FADH2 + 3 O2 -> 34 ATP + 6 H2O

NADH and FADH2 are put through a series of enzymes where the Hydrogen atoms are removed to form an Electron Gradient. This gradient drives movement through a proton 'pump' that produces energy from the flow of the atoms. Each NADH that enters the ETC will produce 3 ATP molecules. Each FADH2 will produce 2 ATP.

This answer is not exhaustive. For the full process, including all of the enzymes utilized, please talk to a Biology professor or look into the purchase of a molecular biology text.

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7y ago
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12y ago

During cellular respiration the Glucose is broken down.

It may be in either of two processes- Aerobic respiration and anaerobic respiration.

In Aerobic respiration there is break down of glucose in CO2 and H2O along with energy in presence of O2. This can be shown in following reaction

C6H12O6 + O2 --------> CO2 + H2O + Energy

And in anaerobic respiration glucose is broken down in any alcohol.

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13y ago

Cells make a form of energy called ATP that makes glucose

The cells break down simple food molecles such as sugar and release the energy that the cells contain

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Q: What happens during cellular respiration?
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Related questions

What happens to the atmosphere during cellular respiration?

oxygen is added to the atmosphere when plants take in carbon dioxide during cellular respiration


What happens during glycolsis in cellular respiration?

glucose is changed into pyruvate


What happens during glucolysis in cellular respiration?

glucose is changed into pyruvate


What happens to electrons during cellular respiration?

They lose potential energy.


What happens if oxygen is absent during the 2nd stage of cellular respiration?

fermentation will occur.


Where does Cellular Respiration happen?

Cellular respiration happens in the organelle called the mitochondria.


What happens to energy During cellular respiration?

Energy is burned or is used up during this process. During cellular respiration, molecules of glucose are broken down in order to convert the stored energy into a usable form of energy.


What substances are nedded for cellular respiration to take place and what substances are during cellular respiration?

The substances that are needed for cellular respiration are glucose and oxygen. During cellular respiration, the cells convert food into usable energy.


Which term is a process that happens within the mitochondria as part od cellular respiration?

cellular respiration


What is the Respiration happens in organelle?

Aerobic cellular respiration occurs in the mitochondria. Anaerobic cellular respiration occurs in the cytoplasm.


When do green plants carry on respiration?

both photosynthesis and cellular respiration occurs during the day, however, during the night when there is no sunlight only cellular respiration occurs.


What happens if an organism performs cellular respiration without oxygen?

Anaerobic respiration does not involve oxygen.