Does respiration uses energy?

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Rockgo288
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I’m really confused. My teacher said respiration doesn’t use up energy and it GENERATES energy(ATP). But, in glycolysis, ATP is use to activate the glucose molecule. Energy is used! Can someone help me?
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Kallisto
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(Original post by Rockgo288)
I’m really confused. My teacher said respiration doesn’t use up energy and it GENERATES energy(ATP). But, in glycolysis, ATP is use to activate the glucose molecule. Energy is used! Can someone help me?
When it is said that respiration generates ATP, it means that it is just a process to make sure that enough energy is in existence to support metabolisms. Glycolysis, kreb's cycle and electron transport chain together are the aerobic respiration. These three parts of respiration use the energy in form of ATP, 2 molecules by Glycolysis and kreb's cycle and even 34 ATP molecules by electron transport chain. In total it is 38 ATP molecules.

Do you get it? respiration per se is quasi an energy storage, and this one is used by the three named sorts of metabolism.

In short: respiration support with ATP, but Glycolysis, kreb's cycle and electron transport chain use ATP.
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Rockgo288
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(Original post by Kallisto)
When it is said that respiration generates ATP, it means that it is just a process to make sure that enough energy is in existence to support metabolisms. Glycolysis, kreb's cycle and electron transport chain together are the aerobic respiration. These three parts of respiration use the energy in form of ATP, 2 molecules by Glycolysis and kreb's cycle and even 34 ATP molecules by electron transport chain. In total it is 38 ATP molecules.

Do you get it? respiration per se is quasi an energy storage, and this one is used by the three named sorts of metabolism.

In short: respiration support with ATP, but Glycolysis, kreb's cycle and electron transport chain use ATP.
what do you mean by “respiration per se is quasi an energy storage” ?
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Kallisto
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(Original post by Rockgo288)
what do you mean by “respiration per se is quasi an energy storage” ?
It was maybe a failed metaphor. It just means that respiration has the energy which can be used by Glycolysis, electron transport chain and kreb's cycle to activate metabolism.
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