You starve the fire of oxygen, and the flame flickers out. If a metabolic reaction is aerobic, it requires oxygen. Buy why? Here's an analogy. Think about lighting a campfire. What do you need? You have authorized LearnCasting of your reading list in Scitable. Do you want to LearnCast this session? This article has been posted to your Facebook page via Scitable LearnCast. Change LearnCast Settings.
Related questions Why are nucleic acids important to life? How do nucleotides form DNA? How do nucleotides form a double helix? How do DNA mutations occur? How are DNA chromosomes and genes related? Together, these chemical groups constitute an energy powerhouse.
The two bonds between the phosphates are equal high-energy bonds phosphoanhydride bonds that, when broken, release sufficient energy to power a variety of cellular reactions and processes.
It has an adenosine backbone with three phosphate groups attached. ATP is a highly unstable molecule. To harness the energy within the bonds of ATP, cells use a strategy called energy coupling. Energy Coupling : Sodium-potassium pumps use the energy derived from exergonic ATP hydrolysis to pump sodium and potassium ions across the cell membrane. Cells couple the exergonic reaction of ATP hydrolysis with the endergonic reactions of cellular processes. For example, transmembrane ion pumps in nerve cells use the energy from ATP to pump ions across the cell membrane and generate an action potential.
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