Fatty acid oxidation for energy yield occurs in the mitochondrial matrix, and for palmitate as one example, generates [FADN2, NADH, and Acetyle-CoA or FADH, GTP, and NADPH]  , all of which can be converted to ATP (108 of them to be exact) via oxidative phosphorylation.  This is a [greater or smaller]  yield of ATP per carbon atom compared to glucose.  Ketogenesis is a process where acetyl-CoA (including that from breakdown of fatty acids) is converted to ketone bodies under conditions where carbohydrates are [in excess or liminting]  .  Acetoacetate and D-beta-hydroxybutyrate are delivered from liver to the blood stream where they  provide energy for [cardiac and skeletal muscle as well as brain or synthesis of glycogen]  . [Insulin or glucagon]  promotes ketogenesis by stimulating fatty acid export from adipose tissue.

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Fatty acid oxidation for energy yield occurs in the mitochondrial matrix, and for palmitate as one example, generates [FADN2, NADH, and Acetyle-CoA or FADH, GTP, and NADPH]  , all of which can be converted to ATP (108 of them to be exact) via oxidative phosphorylation.  This is a [greater or smaller]  yield of ATP per carbon atom compared to glucose.  Ketogenesis is a process where acetyl-CoA (including that from breakdown of fatty acids) is converted to ketone bodies under conditions where carbohydrates are [in excess or liminting]  .  Acetoacetate and D-beta-hydroxybutyrate are delivered from liver to the blood stream where they  provide energy for [cardiac and skeletal muscle as well as brain or synthesis of glycogen]  . [Insulin or glucagon]  promotes ketogenesis by stimulating fatty acid export from adipose tissue.

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