Exam 2: Defining and Measuring Energy

An endergonic reaction is the ____.

Estimate the resting metabolic rate of a 165-lb (75-kg) male using the Simplified Resting Metabolic Rate Formula.

Of the three constituents of total energy expenditure the one that can be influenced most readily and to the largest extent by the individual is ____.

Resting metabolism comprises approximately 50 percent of a sedentary person's total daily energy expenditure.

What is the amount of energy per unit time required by the body to maintain a nonactive but alert state?

The thick contractile protein of a muscle cell is known as ____.

Select the key term that is most associated with the description below. Each term is used only once. a. Commonly used in exercise physiology laboratories to determine the oxygen consumption and energy expenditure response to exercise, in some cases to determine maximal oxygen consumption b. Ability to measure accurately what was intended to be measured c. Used to directly measure the thermal energy of food d. Can measure both direct and indirect calorimetry e. Ability to reproduce a measurement and/or the consistency of repeated measurements f. Level of energy expenditure equal to that measured at rest g. Energy of motion h. Used in free-living situations to measure energy expenditure over weeks i. A protein-containing compound that catalyzes biochemical reactions j. Stored energy -Validity

The terms calorie and Calorie can be used interchangeably in scientific writing.

Select the key term that is most associated with the description below. Each term is used only once. a. Commonly used in exercise physiology laboratories to determine the oxygen consumption and energy expenditure response to exercise, in some cases to determine maximal oxygen consumption b. Ability to measure accurately what was intended to be measured c. Used to directly measure the thermal energy of food d. Can measure both direct and indirect calorimetry e. Ability to reproduce a measurement and/or the consistency of repeated measurements f. Level of energy expenditure equal to that measured at rest g. Energy of motion h. Used in free-living situations to measure energy expenditure over weeks i. A protein-containing compound that catalyzes biochemical reactions j. Stored energy -Kinetic energy

What are chemical reactions that store energy?

Under the most demanding conditions (e.g., very high-intensity exercise), ATP concentrations in exercising skeletal muscles rarely drop more than ____ percent.

The law of conservation of energy states, "Within a closed system, energy is neither created nor destroyed."

In healthy individuals, two factors known to decrease resting metabolic rate are starvation and _______________.

As the body utilizes the potential energy contained in food, a large portion of that energy is converted to heat energy.

Select the key term that is most associated with the description below. Each term is used only once. a. Commonly used in exercise physiology laboratories to determine the oxygen consumption and energy expenditure response to exercise, in some cases to determine maximal oxygen consumption b. Ability to measure accurately what was intended to be measured c. Used to directly measure the thermal energy of food d. Can measure both direct and indirect calorimetry e. Ability to reproduce a measurement and/or the consistency of repeated measurements f. Level of energy expenditure equal to that measured at rest g. Energy of motion h. Used in free-living situations to measure energy expenditure over weeks i. A protein-containing compound that catalyzes biochemical reactions j. Stored energy -Enzyme

On average, 1 liter of oxygen consumed is equivalent to ____ kcal of energy expended.

The generation of tension by contracting muscle is known as ____.

What are chemical reactions that release energy?

The TEF is typically calculated by multiplying daily caloric intake by 10 percent.

It is estimated that sedentary people use about 30 kilocalories of energy per kilogram body weight daily.