18 Questions
What effect do proteins have on energy turnover compared to carbohydrates and fats?
Proteins increase energy turnover twice as long as carbohydrates and fats.
Which nutrient type has the highest energy expenditure following absorption?
Proteins
What is one possible mechanism for the creation of nutrition-induced thermogenesis?
Direct or hormonally mediated effect of absorbed nutrients on cell metabolism
What percentage of the body's total daily energy expenditure could be accounted for by food-induced thermogenesis with moderate physical activity?
8-15%
What percentage of the total daily energy expenditure falls on activity with greater activity levels?
>50%
How is Total Energy Expenditure (TEE) estimated according to the text?
Through calculation of basic energy turnover, nutrition-induced thermogenesis, and daily activity levels
What is the main factor that contributes to total energy expenditure (TEE) during normal daily activity?
All of the above
What are the key conditions required for measuring a person's basal metabolic rate (BMR)?
Measurement in the morning, after at least 8 hours of fasting, in a rested state, and at a temperature of approximately 20°C
Which of the following factors can influence a person's basal metabolic rate (BMR)?
All of the above
What is the main effect of consuming a meal on a person's energy expenditure?
Energy expenditure increases for a few hours after the meal
Which of the following is NOT a process that contributes to basal metabolic rate (BMR)?
Muscle activity
How does muscle activity energy expenditure contribute to total energy expenditure (TEE)?
Muscle activity energy expenditure is the third-largest component of TEE after BMR and diet-induced thermogenesis (DIT)
Which tissue primarily relies on ketone bodies as an energy source during prolonged fasting?
Brain
What are the three main ketone bodies produced during ketosis?
Acetoacetate, acetone, and β-hydroxybutyrate
What is the primary source of energy for skeletal muscle during prolonged fasting?
Free fatty acids
Which process is increased during fasting to provide energy for the brain?
Gluconeogenesis
What is the primary source of free fatty acids during fasting?
Adipose tissue triglycerides
Which process is increased in skeletal muscle during fasting to provide energy?
Proteolysis
Explore the impact of proteins on increasing the body's energy expenditure and how it compares to carbohydrates and fats. Learn about the mechanisms behind this process and the duration of the effect of proteins on energy turnover.
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