Chapter 3 (Section A) Flashcards

1
Q

The process of converting ingested nutrients into energy in the body

A

metabolism

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2
Q

usable power derived from nutrient sources

A

energy

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3
Q

The symmetry between nutrient consumption and the energy demands of the body

A

energy balance

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4
Q

The energy released as the bonds that hold chemicals together are broken

A

chemical energy

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5
Q

Energy requirements for bodily functions such as digestion, respiration, and circulation are met by what two things

A

the presence of o2 and the digestion and absorption of nutrients

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6
Q

Six basic forms of energy:

A

chemical, nuclear, electrical, mechanical, thermal and radiant

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7
Q

What two aspects of energy production are required to perform cellular processes?

A

nutrients and o2

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8
Q

Amount of energy needed to raise the temperature of 1 gram of water by 1 degree (C) at a pressure of 1 atmosphere

A

calorie/kilocalorie

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9
Q

Alcohol calories per gram

A

7

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10
Q

Calories in a gram of stored fat from a carbohydrate source

A

3.27

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11
Q

How energy balance is measured

A

total calorie intake in a 24 hour period as compared to total energy expenditure in the same amount of time

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12
Q

Calories consumed by the average American

A

3600

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13
Q

Recommended calorie consumption (female/male)

A

1600-2400, 2000-3000

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14
Q

a tool to measure heat production and energy expenditure

A

caloriemeter

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15
Q

uses an insulated chamber to measure heat added to the ambient environment

A

direct calorimetry

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16
Q

measures o2 consumed and co2 produced

A

indirect calorimetry

17
Q

Energy expenditure is the result of the cumulation of which four main processes in the body?

A

resting metabolic rate, thermic effect of food, physical activity, and physical growth

18
Q

energy expenditure of metabolic and physical processes when the body is at rest

A

resting metabolic rate

19
Q

energy expenditure associated with food consumption

A

thermic effect of food

20
Q

RMR is also referred to as what?

A

Basil metabolic rate

21
Q

Resting metabolic rate is the energy required to support which five functions?

A

support cardiac function and respiration, repair internal organs, maintain body temperature, and balance water and ions concentrations across cell membranes

22
Q

a formula that can closely estimate the overall caloric need for an individual

A

Harris Benedict formula

23
Q

the thermic effect of macronutrient digestion and absorption

A

diet induced thermogenesis

24
Q

which macronutrient has the least effect on thermogenesis

A

fat

25
Q

Physical activity is directly related to what three things:

A

body size, physical conditioning, and amount/distance of movement performed.

26
Q

energetic cost of _________ will vary at different stages of life

A

growth