Cellular Respiration
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- Category: Science
- Date Submitted: 01/29/2010 01:38 AM
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Cellular Respiration and Fermentation
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I. Background: all eukaryotes perform cellular respiration, including animals, plants, fungi, and protists. II. Overall Cellular Respiration reaction:
III. More Background: The "goal" of cellular respiration is to change energy found in fuel into energy that the cell can utilize effectively. A. Fuel = glucose 1. each mole of glucose has about 686 kcal of accessible energy in bonds. This is a measure of ΔG (Gibb's free energy), which is the maximum amount of energy available to do work (vibrate molecules) from the reaction. B. Cellular energy molecule = ATP The Cellular energy molecule that cellular respiration produces is called adenosine triposphate.
C. example of the work ATP can do:
1
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C. example of the work ATP can do:
D. Under cellular conditions (in vivo), ATP has about 12-14 kcal/mole (usable energy). ΔG = -12 kcal/mole. the above ΔG value is for in vitro conditions. 1. To do: Calculate how many moles of ATP could be made if cellular respiration was 100% efficient ?
2. In reality, cells can produce only about 36 moles of ATP per mole of glucose. How efficient is the reaction?
3. What happens to the excess energy?
IV. Cellular respiration is an oxdiation reduction reaction!
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3. What happens to the excess energy?
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IV. Cellular respiration is an oxdiation reduction reaction!
A. Glucose is oxidized - loses high energy electrons B. Oxygen is reduced - gains low energy electrons. Are you asking what happened to the energy in the electrons? C. The result is cellular respiration: the movement of high energy electrons taken from glucose, transfered through a series of reactions that uses the energy in them to make ATP, and finally the addition of low energy electrons to oxygen to form water. V. NAD+ and FAD get reduced to carry electrons and protons....
keywords/quesions notes extra info i get it
I. Background: all eukaryotes perform cellular respiration, including animals, plants, fungi, and protists. II. Overall Cellular Respiration reaction:
III. More Background: The "goal" of cellular respiration is to change energy found in fuel into energy that the cell can utilize effectively. A. Fuel = glucose 1. each mole of glucose has about 686 kcal of accessible energy in bonds. This is a measure of ΔG (Gibb's free energy), which is the maximum amount of energy available to do work (vibrate molecules) from the reaction. B. Cellular energy molecule = ATP The Cellular energy molecule that cellular respiration produces is called adenosine triposphate.
C. example of the work ATP can do:
1
keywords/quesions
notes
extra info
i get it
C. example of the work ATP can do:
D. Under cellular conditions (in vivo), ATP has about 12-14 kcal/mole (usable energy). ΔG = -12 kcal/mole. the above ΔG value is for in vitro conditions. 1. To do: Calculate how many moles of ATP could be made if cellular respiration was 100% efficient ?
2. In reality, cells can produce only about 36 moles of ATP per mole of glucose. How efficient is the reaction?
3. What happens to the excess energy?
IV. Cellular respiration is an oxdiation reduction reaction!
2
3. What happens to the excess energy?
keywords/quesions notes extra info i get it
IV. Cellular respiration is an oxdiation reduction reaction!
A. Glucose is oxidized - loses high energy electrons B. Oxygen is reduced - gains low energy electrons. Are you asking what happened to the energy in the electrons? C. The result is cellular respiration: the movement of high energy electrons taken from glucose, transfered through a series of reactions that uses the energy in them to make ATP, and finally the addition of low energy electrons to oxygen to form water. V. NAD+ and FAD get reduced to carry electrons and protons....