Q: A food contains 10 grams of protein, 20 grams of carbohydrate, and 5 grams of fat. Calculate the percent of calories from protein. Use the following caloric values: $$4\ \mathrm{kcal/g}$$ for protein and carbohydrate, $$9\ \mathrm{kcal/g}$$ for fat.

$$\frac{10 \times 4}{(10 \times 4) + (20 \times 4) + (5 \times 9)} \times 100 = 15.4\%$$

Q: A food label states that a serving contains 8 grams of fat. How many calories from fat does this represent? Use $$9\ \mathrm{kcal/g}$$ for fat.

$$8 \times 9 = 72\ \mathrm{kcal}$$

Question 1

Which of the following is the #1 factor influencing people's food choices in the United States?

Accepted Answer

Taste

Question 2

A student is trying to improve their diet by choosing whole grains instead of refined grains and selecting lean protein options. Which factor is most likely influencing their food choices?

Accepted Answer

Nutrition knowledge

Question 3

Which of the following nutrients is present in the largest amount in the human body?

Accepted Answer

Water

Question 4

Which of the following is an example of an inorganic nutrient?

Accepted Answer

Minerals

Question 5

A food contains 10 grams of protein, 20 grams of carbohydrate, and 5 grams of fat. Calculate the percent of calories from protein. Use the following caloric values: $$4\ \mathrm{kcal/g}$$ for protein and carbohydrate, $$9\ \mathrm{kcal/g}$$ for fat.

Accepted Answer

$$\frac{10 	imes 4}{(10 	imes 4) + (20 	imes 4) + (5 	imes 9)} 	imes 100 = 15.4\%$$

Question 6

Which of the following statements about alcohol is TRUE?

Accepted Answer

Alcohol provides $$7\ \mathrm{kcal/g}$$ but is not considered a nutrient.

Question 7

Which of the following best describes a nutrient-dense food?

Accepted Answer

A food with a high amount of nutrients relative to its calorie content, such as vegetables

Question 8

Which of the following is NOT a function of proteins in the body?

Accepted Answer

Provide concentrated energy storage

Question 9

A patient is diagnosed with undernutrition. Which of the following best describes their condition?

Accepted Answer

They are consuming too little energy or nutrients to maintain health.

Question 10

Which of the following is a primary function of the large intestine?

Accepted Answer

Absorption of water and electrolytes; formation of feces

Question 11

Which of the following best describes the difference between mechanical and chemical digestion?

Accepted Answer

Mechanical digestion is the physical breakdown of food, while chemical digestion is the enzymatic breakdown into absorbable molecules.

Question 12

Which of the following is an example of a structure/function claim on a food label?

Accepted Answer

"Calcium builds strong bones."

Question 13

Which of the following nutrients is absorbed directly into the bloodstream from the small intestine?

Accepted Answer

Glucose

Question 14

A food label states that a serving contains 8 grams of fat. How many calories from fat does this represent? Use $$9\ \mathrm{kcal/g}$$ for fat.

Accepted Answer

$$8 	imes 9 = 72\ \mathrm{kcal}$$

Question 15

Which of the following is a function of the liver in digestion?

Accepted Answer

Produces bile to aid in fat digestion

Question 16

Which of the following best describes the role of villi in the small intestine?

Accepted Answer

They increase surface area for nutrient absorption.

Question 17

A person is following a diet high in fried foods and sugary snacks. Which term best describes the energy density of their diet?

Accepted Answer

High energy density

Question 18

Which of the following is a reason why supplements may be beneficial?

Accepted Answer

To treat nutrient deficiencies or during certain life stages such as pregnancy

Question 19

Which of the following best describes the process of peristalsis?

Accepted Answer

Wave-like contractions that move food forward through the GI tract

Question 20

Which of the following is a credible way to identify a Registered Dietitian Nutritionist (RDN)?

Accepted Answer

Passing a national certification exam and maintaining licensure

Nutrition Study Guide: Step-by-Step Guidance for Key Concepts

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