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Fat Metabolism and Oxidation

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Questions and Answers

What is the primary location of fat storage in humans?

Liver

Subcutaneous adipose tissue (correct)

Bloodstream

Muscle cells

What is the primary function of hormone-sensitive lipase in fat metabolism?

Transport of FAs into the mitochondria

Breakdown of triacylglycerols (correct)

Binding of FAs to albumin

Synthesis of triacylglycerols

What is the primary site of FA oxidation in muscle cells?

Mitochondria (correct)

Lysosomes

Sarcoplasmic reticulum

Golgi apparatus

What determines the relative contribution of carbohydrate and fat oxidation during exercise?

Exercise intensity, duration, aerobic fitness level, diet, and carbohydrate intake Signup and view all the answers

What is the function of FAT/CD36 in fatty acid transport?

Transport of FAs across the sarcolemma Signup and view all the answers

At what exercise intensity does fat oxidation reach its maximum rate in trained individuals?

62% to 63% of V̇O2max Signup and view all the answers

What is the effect of a high-carbohydrate, low-fat diet on fat oxidation?

It reduces fat oxidation Signup and view all the answers

What is the effect of carbohydrate feeding before exercise on fat oxidation?

It reduces fat oxidation Signup and view all the answers

What is the effect of ingesting long-chain triacylglycerols during exercise?

It reduces gastric emptying Signup and view all the answers

What is the effect of high-fat diets for 3 to 5 days on exercise performance?

It reduces exercise performance Signup and view all the answers