Fatty acid oxidation and mobilization is regulated where?
Adipose Tissue
What enzyme regulates fatty acid oxidation and mobilization?
Hormone-Sensitive Lipase (LIPE gene)
What promotes the activation of the HSL enzyme?
fasting conditions, minimal
amounts of insulin in the blood, and the presence of glucagon and epinephrine
What does active HSL enzyme do to triglycerides?
hydrolyzes triglycerides to glycerol and free fatty acids
What carries free fatty acids to tissues where they are oxidized for energy in the mitochondrial matrix?
serum albumin
What happens to the resulting glycerol from HSL enzyme hydolysis of triglycerides?
Glycerol is carried to the liver for gluconeogenesis (glucose synthesis)
What is the pathway shown below?
Beta Oxidation of Fatty Acids Pathway
True or False: The liver can metabolize ketone bodies.
False
Why can't the liver metabolize ketone bodies?
Because it lacks the enzyme succinyl-CoA:acetoacetate-CoA transferase to convert acetoacetate to acetyl-CoA
What is the caloric value of fat?
Caloric value of fat = 9kcal/g ,HIGH ENERGY DENSITY
What is the caloric value of protein and carbohydrates?
Caloric value of protein and carbohydrates = 4kcal/g
Each mole of palmitate oxidized produces
a net ___ moles of ATP from NADH, FADH2, and acetyl-CoA
129
What provides more than half of the oxidative energy requirement of the liver, kidneys, heart, and resting skeletal?
fatty acid oxidation
As one fatty acid is oxidized ___ pairs of electrons are passed to the reduced energy carriers NADH and FADH2 that act as ____ used in the electron transport chain/oxidative phosphorylation