Transcript Chapter 7 Powerpoint Section 3

Chapter 7 Nutrition: The Nutrients
Content Vocabulary
energy
glucose
fatty acids
amino acids
toxin
calories
gram
digestion
Glencoe Making Life Choices Section 3 Energy from Food
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Chapter 7 Nutrition: The Nutrients
• Three nutrients—carbohydrates, fats, and
protein—provide energy the body can use to
grow, to move, and to create heat to maintain a
steady temperature.
energy
The capacity to do work or produce heat
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
The body stores extra energy from the
carbohydrates, fats, or proteins you eat
as glycogen or body fat.
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Carbohydrates provide the body with its main
fuel, glucose.
• The brain and nervous system depend on
glucose for energy to think, to trigger movement,
and to send messages between tissues.
glucose
A simple form of carbohydrate which serves
as the body’s sugar
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Fat supplies energy to the body as fatty acids.
• Muscles rely heavily on fatty acids to fuel physical
activity and movement.
fatty acids
Building blocks of fat that supply energy fuel
for most of the body’s cells
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Protein supplies energy as amino acids.
• In difficult situations when the body is stressed, it
can burn amino acids from protein at a greater
rate than at less stressful times.
amino acids
Building blocks of protein normally used to
build tissues or, under some conditions,
burned for energy
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Some substances, such as the toxin alcohol,
provide calories but are not nutrients.
toxin
poison
calorie
A unit used to measure energy
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Vitamins and minerals are measured in grams or
milligrams.
gram
A unit of weight, about 1/28th of an
ounce
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Chapter 7 Nutrition: The Nutrients
Energy from Nutrients
• Alcohol can contribute to fat because it provides
calories but it does not promote growth,
maintenance, or repair of the body.
• If you consume more carbohydrate, fat, and
protein than you need, these nutrients will be
stored in your body, mostly as fat.
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Chapter 7 Nutrition: The Nutrients
Energy from Food
The best source of energy for the body is
a balanced diet.
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Chapter 7 Nutrition: The Nutrients
Energy from Food
• For sufficient energy, eat a meal balanced with
the right amounts of carbohydrates, fat, and
protein.
• Fat helps with digestion while the carbohydrates
and protein provide the body with lasting energy.
digestion
The breaking down of food into
nutrients the body can use
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Chapter 7 Nutrition: The Nutrients
Section Review: Reviewing the Vocabulary
• Define digestion.
digestion
The breaking down of food into
nutrients the body can use
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Chapter 7 Nutrition: The Nutrients
Section Review: Reviewing the Vocabulary
• What are calories?
calories
A unit used to measure energy
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End of
Chapter 7
Section 3
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