ACE ACE - Personal Trainer Nutrition and Weight Management 2 — Questions and Answers
Question 1: What is glycogen?
- A type of dietary fat
- The stored form of glucose in muscles and liver (Correct answer)
- A digestive enzyme
- A protein found in muscle tissue
Correct answer: The stored form of glucose in muscles and liver
Glycogen is the stored form of glucose found primarily in the liver and skeletal muscle, used as a rapid energy source.
Question 2: What percentage of total daily calories is generally recommended to come from carbohydrates?
- 10–20%
- 20–35%
- 45–65% (Correct answer)
- 70–80%
Correct answer: 45–65%
The AMDR for carbohydrates is 45–65% of total daily caloric intake, as established by the Dietary Reference Intakes.
Question 3: Which mineral plays a critical role in oxygen transport in the blood?
- Calcium
- Zinc
- Iron (Correct answer)
- Magnesium
Correct answer: Iron
Iron is a key component of hemoglobin in red blood cells, enabling oxygen transport throughout the body.
Question 4: What is the thermic effect of food (TEF)?
- The heat generated during exercise
- Energy burned to digest, absorb, and metabolize nutrients (Correct answer)
- The temperature of food at consumption
- Calories stored after a large meal
Correct answer: Energy burned to digest, absorb, and metabolize nutrients
TEF is the energy expended during the digestion, absorption, and metabolism of food, accounting for about 10% of total daily energy expenditure.
Question 5: What is the general daily protein recommendation for a moderately active adult?
- 0.4–0.5 g/kg body weight
- 0.8–1.0 g/kg body weight (Correct answer)
- 1.8–2.2 g/kg body weight
- 3.0–4.0 g/kg body weight
Correct answer: 0.8–1.0 g/kg body weight
The RDA for moderately active adults is 0.8–1.0 g of protein per kilogram of body weight per day.
Question 6: How many calories are provided per gram of carbohydrate?
- 2 calories
- 4 calories (Correct answer)
- 7 calories
- 9 calories
Correct answer: 4 calories
Carbohydrates provide 4 calories per gram, the same as protein, making them equal in caloric density.
ACE ACE - Personal Trainer Nutrition and Weight Management 2
What is glycogen?