Question 1:

What is metabolism?

A) The breakdown of complex molecules into simpler ones
B) The process of converting food into energy and building blocks for the body
C) The elimination of waste products from the body
D) The production of hormones and enzymes

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Explanation: Metabolism refers to the processes in the body that convert food into energy and building blocks for the body's cells, tissues, and organs.

Question 2:

What is basal metabolic rate (BMR)?

A) The rate at which you burn calories during physical activity
B) The rate at which your body burns calories at rest to maintain basic functions
C) The rate at which you metabolize carbohydrates
D) The rate at which your body absorbs nutrients from food

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Explanation: Basal metabolic rate (BMR) is the rate at which your body burns calories at rest to maintain basic functions such as breathing, circulating blood, and regulating body temperature.

Question 3:

Which of the following factors can affect metabolism?

A) Age and gender
B) Body size and composition
C) Hormonal levels
D) All of the above

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Explanation: All of the above factors can affect metabolism. Age, gender, body size, body composition, and hormonal levels can influence the rate at which the body burns calories and processes nutrients.

Question 4:

What is the thermic effect of food (TEF)?

A) The energy used for physical activity
B) The energy expended during digestion, absorption, and metabolism of food
C) The energy required for maintaining basic bodily functions at rest
D) The energy stored in the body as fat

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Explanation: The thermic effect of food (TEF) refers to the energy expended during the digestion, absorption, and metabolism of food. It accounts for a portion of the total energy expenditure.

Question 5:

What is the primary source of energy expenditure in the body?

A) Physical activity
B) Basal metabolic rate (BMR)
C) Thermic effect of food (TEF)
D) Non-exercise activity thermogenesis (NEAT)

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Explanation: Basal metabolic rate (BMR) is the primary source of energy expenditure in the body. It accounts for the majority of the calories burned at rest, while physical activity, TEF, and NEAT contribute to additional energy expenditure.