Integrated Metabolism Lecture 01 Quiz

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What are the three main components of total daily energy expenditure?

Resting metabolic rate, physical activity, thermic effect of food (correct)

Protein intake, carbohydrate metabolism, fat storage

Glycolysis, gluconeogenesis, citric acid cycle

Thyroid hormone, body composition, age

What happens to the majority of food intake and energy expenditure in a 24-hour period?

Food intake and energy expenditure are both sporadic

Food intake occurs continuously, energy expenditure occurs in short bursts

Food intake occurs in three short periods, energy expenditure is continuous (correct)

Food intake and energy expenditure are constant throughout the day

Which factor does not influence the resting metabolic rate (RMR)?

Emotions

Daily protein intake (correct)

Thyroid hormone

Age

What characterizes situations leading to an increase in metabolism rate?

Strenuous physical exercise and severe illness like infections Signup and view all the answers

Which major metabolic pathway involves the breakdown of glucose for energy production?

Gluconeogenesis Signup and view all the answers

What is the primary purpose of oxidative phosphorylation in metabolism?

Generation of ATP using electron transport chain Signup and view all the answers

What is the primary function of cortisol in promoting gluconeogenesis?

Raising the cellular concentration of pyruvate carboxylase in liver tissue Signup and view all the answers

What is the main purpose of storing creatine phosphate (CP) in muscle tissue?

To quickly regenerate ATP from ADP during intense muscle work Signup and view all the answers

In longer runs, why is there a greater demand for oxidative phosphorylation over glycolysis?

Oxidative phosphorylation yields a higher energy output but at a slower rate than glycolysis Signup and view all the answers

What is the primary source of energy for a marathon runner during the race?

A cooperative effort between muscle, liver, and adipose tissue Signup and view all the answers

Why does the running pace need to be slower during prolonged oxidative phosphorylation compared to glycolysis?

Oxidative phosphorylation generates less ATP compared to glycolysis Signup and view all the answers

Why are total glycogen stores insufficient to provide 150 mol of ATP for marathon runners?

Fat breakdown is necessary due to the inadequacy of glycogen stores Signup and view all the answers

What is the role of NADPH in human metabolism?

It is the redox agent for reductive biosynthesis Signup and view all the answers

Which of the following best describes the thermic effect of food?

It is the energy used by the digestive system to process food Signup and view all the answers

What is the main function of macronutrients in human metabolism?

Store and release energy in the body Signup and view all the answers

Which statement accurately describes the resting metabolic rate (RMR)?

It is the energy required to maintain basic bodily functions at rest Signup and view all the answers

How are macronutrients and micronutrients classified in human nutrition?

Based on their functions in metabolism Signup and view all the answers

Integrated Metabolism Lecture 01 Quiz

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