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Energy Balance and Nutrition Quiz

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Questions and Answers

What is the condition for energy balance to occur?

When the energy content of food is less than the total amount of energy expended by the body

When the energy content of food is greater than the total amount of energy expended by the body

When the energy content of food is matched by the total amount of energy expended by the body (correct)

When the energy content of food is irrelevant to the total amount of energy expended by the body

What is the result of homeostatic control in energy balance?

Maintenance of body weight and body energy stores (correct)

Significant increase in body weight

Significant decrease in body weight

Unpredictable fluctuations in body weight

When is energy balanced?

When we consume less energy than we expend each day

When we consume the same amount of energy that we expend each day (correct)

When we don't consume any energy

When we consume more energy than we expend each day

What causes fluctuations in body weight according to the text?

Changes in energy intake and energy expenditure Signup and view all the answers

Can energy balance occur in individuals with different activity levels?

Yes, energy balance can occur regardless of the levels of energy intake and expenditure Signup and view all the answers

Which enzyme is responsible for the initial breakdown of starch in the mouth?

Salivary amylase Signup and view all the answers

What is the primary action of salivary amylase on starch?

Hydrolyzes α 1-4 glycosidic linkages Signup and view all the answers

What is the function of mastication in the mouth during carbohydrate digestion?

To mechanically break down food into smaller particles Signup and view all the answers

Which part of the gastrointestinal tract is responsible for the digestion of monosaccharides?

Small intestine Signup and view all the answers

What is the role of specific enzymes in the digestion of carbohydrates?

To break down nutrients into smaller usable metabolic products Signup and view all the answers

Study Notes

Energy Balance

Energy balance occurs when energy intake equals energy expenditure.
The result of homeostatic control in energy balance is a stable body weight.
Energy balance is achieved when the energy intake from the diet equals the energy expenditure from the body's metabolic processes.

Factors Affecting Energy Balance

Fluctuations in body weight occur when there is a mismatch between energy intake and energy expenditure.
Energy balance can occur in individuals with different activity levels, but it requires adjustments to energy intake to match their energy expenditure.

Carbohydrate Digestion

Salivary amylase is the enzyme responsible for the initial breakdown of starch in the mouth.
The primary action of salivary amylase on starch is to break it down into smaller molecules, such as maltose and dextrins.
Mastication (chewing) in the mouth helps to mix carbohydrates with salivary amylase, increasing the surface area for digestion.
The small intestine is responsible for the digestion of monosaccharides.
Specific enzymes, such as lactase, sucrase, and maltase, are involved in the breakdown of carbohydrates into absorbable monosaccharides.

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Description

Test your knowledge of energy balance in the context of food and nutrition with this quiz. Explore the concept of energy balance, its role in maintaining body weight and energy stores, and real-life examples. Gain a deeper understanding of how the body manages energy through consumption and expenditure.