Introduction to Energy
Energy can take various forms, but it must be converted to chemical
energy in the human body. Whether you are sleeping, eating, exercising,
or reading, the human body needs energy to perform these activities.
Upon completion of this unit, you will be able to perform the following:
Compare and contrast the 2 energy pathways
Explain the 3 main sources of energy
Deconstruct and detail the processes of energy creation
Identify the components of balancing energy and expenditure
Sources of Energy
What are the three main sources of macronutrients that provide energy
for the body? Select all that apply.
,Proteins, fats, and carbohydrates are the 3 main sources of
macronutrients for the body to create energy. Water is essential but it’s
not a macronutrient. Fiber is also beneficial in digestion but is not a
macronutrient.
Your response is correct!
Types of Fats
Match the types of fats to the appropriate category to label as good or bad
fats.
Good Fats
Polyunsaturated fats
Monosaturated fats
Bad Fats
Saturated fats
Trans fats
There are 4 types of fats with 2 being considered bad and 2 classified as
good. The bad types of fats, saturated and trans fats, are unhealthy and
can raise your Low-Density Lipoproteins (LDL or bad) cholesterol. When at
room temperature, these types of fat are solid. Lard, chocolate, and
margarine are examples.
Healthy fats, monounsaturated and polyunsaturated fats, can lower your
LDL level when consumed appropriately. The good types of fats are often
liquid at room temperature, and examples include avocados and olive oil.
Your response is correct!
Effects on Energy Expenditure
Which factor affects energy expenditure more than any other single
factor?
,Overall body size is the single factor that most affects energy expenditure.
The heavier the person, the more energy must be used in order to
perform activities.
While caloric consumption, thermic effect of food, and basal metabolic
rate all play a role in the production of energy, they are complex
processes that can be affected by multiple other factors.
Your response is correct!
What is Energy?
Understanding the complexities of the production of energy in the human
body is essential for caring for a client. While these processes can seem
daunting at first, gaining a thorough understanding will provide a firm
foundation that will aid decision making in your practice. Failure to
understand the effects of nutrition can jeopardize client health.
Energy in the human body must be converted from nutritional sources
into chemical energy. It is the progression of associated chemical
reactions that are interdependent. There are 2 main energy pathways:
anabolism and catabolism. These two processes together are called
metabolism. They are interdependent and are closely regulated in the
body by hormones. Both energy pathways work together to produce
energy for life sustaining functions.
The primary source of fuel for energy is food. The measurement of
energy released from food is called kilocalories or calories. Determining
the number of kilocalories produced can be calculated in 2 ways: using a
bomb calorimeter or proximate composition. A bomb calorimeter is a
device that measures the energy produced when a sample of food is
burned, but it is more accurate and efficient than the human body.
Therefore, values that you see on nutritional labels are adjusted to
represent the limitations present in humans. Proximate composition uses
the total grams of carbohydrates, fats, and proteins and a calculation to
represent the energy in the specified food.
, Anabolic & Catabolic Pathways
Anabolic Pathway
The anabolic pathway or
anabolism is simply defined as building up. In this process, smaller
Energy can take various forms, but it must be converted to chemical
energy in the human body. Whether you are sleeping, eating, exercising,
or reading, the human body needs energy to perform these activities.
Upon completion of this unit, you will be able to perform the following:
Compare and contrast the 2 energy pathways
Explain the 3 main sources of energy
Deconstruct and detail the processes of energy creation
Identify the components of balancing energy and expenditure
Sources of Energy
What are the three main sources of macronutrients that provide energy
for the body? Select all that apply.
,Proteins, fats, and carbohydrates are the 3 main sources of
macronutrients for the body to create energy. Water is essential but it’s
not a macronutrient. Fiber is also beneficial in digestion but is not a
macronutrient.
Your response is correct!
Types of Fats
Match the types of fats to the appropriate category to label as good or bad
fats.
Good Fats
Polyunsaturated fats
Monosaturated fats
Bad Fats
Saturated fats
Trans fats
There are 4 types of fats with 2 being considered bad and 2 classified as
good. The bad types of fats, saturated and trans fats, are unhealthy and
can raise your Low-Density Lipoproteins (LDL or bad) cholesterol. When at
room temperature, these types of fat are solid. Lard, chocolate, and
margarine are examples.
Healthy fats, monounsaturated and polyunsaturated fats, can lower your
LDL level when consumed appropriately. The good types of fats are often
liquid at room temperature, and examples include avocados and olive oil.
Your response is correct!
Effects on Energy Expenditure
Which factor affects energy expenditure more than any other single
factor?
,Overall body size is the single factor that most affects energy expenditure.
The heavier the person, the more energy must be used in order to
perform activities.
While caloric consumption, thermic effect of food, and basal metabolic
rate all play a role in the production of energy, they are complex
processes that can be affected by multiple other factors.
Your response is correct!
What is Energy?
Understanding the complexities of the production of energy in the human
body is essential for caring for a client. While these processes can seem
daunting at first, gaining a thorough understanding will provide a firm
foundation that will aid decision making in your practice. Failure to
understand the effects of nutrition can jeopardize client health.
Energy in the human body must be converted from nutritional sources
into chemical energy. It is the progression of associated chemical
reactions that are interdependent. There are 2 main energy pathways:
anabolism and catabolism. These two processes together are called
metabolism. They are interdependent and are closely regulated in the
body by hormones. Both energy pathways work together to produce
energy for life sustaining functions.
The primary source of fuel for energy is food. The measurement of
energy released from food is called kilocalories or calories. Determining
the number of kilocalories produced can be calculated in 2 ways: using a
bomb calorimeter or proximate composition. A bomb calorimeter is a
device that measures the energy produced when a sample of food is
burned, but it is more accurate and efficient than the human body.
Therefore, values that you see on nutritional labels are adjusted to
represent the limitations present in humans. Proximate composition uses
the total grams of carbohydrates, fats, and proteins and a calculation to
represent the energy in the specified food.
, Anabolic & Catabolic Pathways
Anabolic Pathway
The anabolic pathway or
anabolism is simply defined as building up. In this process, smaller
