Fat Burning Fundamentals and Core Concepts 4

Question 1

Which of the following best describes 'excess post-exercise oxygen consumption' (EPOC) in relation to fat burning?

Accepted Answer

Elevated metabolism after exercise that burns additional calories and fat during recovery

Answer

EPOC (the 'afterburn effect') reflects increased oxygen consumption after intense exercise as the body restores ATP, removes lactate, and repairs tissue, all processes that burn extra calories.

Question 2

Why does building lean muscle mass support long-term fat loss even at rest?

Accepted Answer

Muscle tissue has a higher resting metabolic rate than fat tissue, increasing total calorie burn

Answer

Skeletal muscle is metabolically expensive to maintain, consuming roughly 6–10 calories per pound per day at rest, raising the basal metabolic rate and daily energy expenditure.

Question 3

Which lipoprotein is primarily responsible for transporting dietary fat from the intestines to peripheral tissues after a meal?

Accepted Answer

Chylomicrons

Answer

Chylomicrons are large lipoproteins assembled in intestinal cells that carry dietary triglycerides and cholesterol through the lymphatic system into the bloodstream.

Question 4

What is the significance of the enzyme 'adipose triglyceride lipase' (ATGL) in fat burning?

Accepted Answer

It catalyzes the first and rate-limiting step of triglyceride breakdown in fat cells

Answer

ATGL performs the initial hydrolysis of triglycerides into diglycerides and free fatty acids, making it the primary rate-limiting enzyme in adipose lipolysis.

Question 5

How does sleep deprivation affect fat metabolism and body composition?

Accepted Answer

It increases ghrelin, reduces leptin, impairs insulin sensitivity, and promotes fat storage

Answer

Poor sleep elevates the hunger hormone ghrelin, lowers satiety hormone leptin, reduces insulin sensitivity, and shifts the body toward preserving fat while losing lean mass.

Fat Burning Practice Test

Fat Burning Practice Test

Fat Burning Fundamentals and Core Concepts 4