Q: A nutrition label lists 210g of carbohydrates, 60g of protein, and 52g of fat. Using the energy values for each macronutrient, what is the total caloric content of the food?

$$210 \times 4 + 60 \times 4 + 52 \times 9 = 1,548$$ calories

Question 1

Which of the following statements best describes the difference between macronutrients and micronutrients?

Accepted Answer

Macronutrients are required in larger amounts and provide energy, while micronutrients are required in smaller amounts and do not provide energy.

Question 2

A nutrition label lists 210g of carbohydrates, 60g of protein, and 52g of fat. Using the energy values for each macronutrient, what is the total caloric content of the food?

Accepted Answer

$$210 	imes 4 + 60 	imes 4 + 52 	imes 9 = 1,548$$ calories

Question 3

Which of the following is a primary function of dietary protein in the human body?

Accepted Answer

Tissue repair and maintenance

Question 4

Which vitamin is required to be listed on all nutrition labels according to current regulations?

Accepted Answer

Vitamin D

Question 5

A food is considered nutrient dense if it:

Accepted Answer

Provides the highest amount of nutrients for the lowest number of calories

Question 6

Which of the following best describes the role of ghrelin in the body?

Accepted Answer

It is produced in the stomach and signals hunger to the brain.

Question 7

Which of the following is NOT a function of saliva in the digestive process?

Accepted Answer

Digesting proteins

Question 8

Which of the following statements about the Acceptable Macronutrient Distribution Range (AMDR) is correct?

Accepted Answer

AMDR provides the recommended range of carbohydrate, fat, and protein intake as a percentage of total energy.

Question 9

Which of the following best describes the function of bile in digestion?

Accepted Answer

Bile is synthesized by the liver and emulsifies fats in the small intestine.

Question 10

A patient is diagnosed with iron deficiency. Which of the following best describes iron as a nutrient?

Accepted Answer

Iron is a trace mineral required in small amounts.

Question 11

Which of the following best explains the difference between 'enriched' and 'fortified' foods?

Accepted Answer

'Enriched' foods have lost nutrients replaced, while 'fortified' foods have nutrients added that were not originally present.

Question 12

Which hormone is produced by adipose (fat) cells and helps regulate food intake over time by acting on the hypothalamus?

Accepted Answer

Leptin

Question 13

A food label lists ingredients in the following order: whole wheat flour, sugar, vegetable oil, salt. What does this order indicate?

Accepted Answer

Ingredients are listed in descending order by weight.

Question 14

Which of the following is a characteristic of an adequate diet?

Accepted Answer

It provides enough energy, nutrients, and fiber to support health.

Question 15

Which of the following best describes the function of the large intestine in digestion?

Accepted Answer

It stores material for 12–24 hours prior to elimination and synthesizes vitamin K.

Question 16

A researcher is conducting a study where neither the participants nor the researchers know who is receiving the placebo. What type of study is this?

Accepted Answer

Double-blind study

Question 17

Which of the following best describes the role of the epiglottis during swallowing?

Accepted Answer

It covers the opening to the trachea to prevent food from entering the airway.

Question 18

Which of the following is a water-soluble vitamin?

Accepted Answer

Vitamin C

Question 19

A patient consumes a meal with 840 calories from carbohydrates. If their total caloric intake is 1,548 calories, what percentage of their calories comes from carbohydrates? Use the formula $$	ext{Percent} = \frac{	ext{Carb Calories}}{	ext{Total Calories}} 	imes 100.$$

Accepted Answer

$$\frac{840}{1,548} 	imes 100 = 54\%$$

Question 20

Which of the following statements about functional foods is correct?

Accepted Answer

Functional foods include probiotics, prebiotics, and phytochemicals that provide health benefits beyond basic nutrition.

Foundations of Nutrition: Macronutrients, Micronutrients, and Digestion

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