Fat Burning Trivia 2 — Questions and Answers
Question 1: Which hormone is often called the 'fat storage hormone' because high levels inhibit fat burning?
- Insulin (Correct answer)
- Glucagon
- Cortisol
- Leptin
Correct answer: Insulin
Insulin signals cells to store energy, and elevated insulin levels suppress lipolysis, preventing fat from being released for fuel.
Question 2: What term describes the metabolic state where the body primarily burns fat for fuel instead of glucose?
- Glycolysis
- Ketosis (Correct answer)
- Gluconeogenesis
- Lipogenesis
Correct answer: Ketosis
Ketosis occurs when carbohydrate intake is very low, forcing the liver to produce ketone bodies from fat as the primary energy source.
Question 3: Approximately how many calories must be burned to lose one pound of body fat?
- 1,500 calories
- 2,000 calories
- 3,500 calories (Correct answer)
- 5,000 calories
Correct answer: 3,500 calories
One pound of body fat contains roughly 3,500 calories of stored energy, so a deficit of 3,500 calories is needed to lose that pound.
Question 4: Which type of exercise has been shown to elevate the metabolic rate for hours after the workout ends, a phenomenon known as EPOC?
- Slow steady-state walking
- Light yoga
- High-intensity interval training (HIIT) (Correct answer)
- Gentle stretching
Correct answer: High-intensity interval training (HIIT)
HIIT creates a significant oxygen debt that keeps the body burning extra calories during the recovery period, known as excess post-exercise oxygen consumption.
Question 5: What is the primary fuel source used during low-intensity, long-duration aerobic exercise?
- Dietary protein
- Blood glucose only
- Stored fat (triglycerides) (Correct answer)
- Creatine phosphate
Correct answer: Stored fat (triglycerides)
At lower exercise intensities, the aerobic system has time to oxidize fatty acids, making stored triglycerides the dominant fuel.
Question 6: Which macronutrient has the highest thermic effect of food (TEF), meaning the body burns the most calories digesting it?
- Fat
- Carbohydrates
- Alcohol
- Protein (Correct answer)
Correct answer: Protein
Protein has a TEF of roughly 20–30%, meaning the body burns 20–30% of protein calories just through digestion and metabolism.
Question 7: What role does the mitochondria play in fat burning?
- It stores triglycerides for future use
- It converts fat into glycogen
- It oxidizes fatty acids to produce ATP (Correct answer)
- It secretes fat-burning hormones
Correct answer: It oxidizes fatty acids to produce ATP
Mitochondria are the cellular powerhouses that use beta-oxidation to break down fatty acids and generate ATP through the aerobic energy system.
Fat Burning Trivia 2
Which hormone is often called the 'fat storage hormone' because high levels inhibit fat burning?