Q: If a food contains 5 grams of protein, 10 grams of carbohydrate, and 2 grams of fat, what is the total energy content in kilocalories?

$$(5 \times 4) + (10 \times 4) + (2 \times 9) = 20 + 40 + 18 = 78$$ kcal

Question 1

Which of the following best defines an essential nutrient?

Accepted Answer

A nutrient that must be obtained from the diet because the body cannot make it or cannot make enough of it.

Question 2

Which of the following lists the six classes of nutrients correctly?

Accepted Answer

Carbohydrates, proteins, fats, vitamins, minerals, water

Question 3

Which of the following is a characteristic of a healthy diet?

Accepted Answer

It is adequate, balanced, calorie-controlled, moderate, and varied.

Question 4

A food that provides a high amount of nutrients for relatively few calories is considered:

Accepted Answer

Nutrient dense

Question 5

Which of the following statements about calories is correct?

Accepted Answer

A calorie is a unit of energy.

Question 6

How many kilocalories (kcal) are provided by 10 grams of fat?

Accepted Answer

$$10 	imes 9 = 90$$ kcal

Question 7

Which of the following is NOT a factor that commonly influences food choices?

Accepted Answer

Atomic number of elements in food

Question 8

Which of the following is a conditionally essential nutrient?

Accepted Answer

A nutrient that becomes essential under certain conditions such as illness or stress.

Question 9

Which of the following research designs is best for determining cause and effect relationships in nutrition?

Accepted Answer

Randomized controlled trial

Question 10

Which of the following is a sign of nutrition quackery?

Accepted Answer

Claims that sound too good to be true

Question 11

If a food contains 5 grams of protein, 10 grams of carbohydrate, and 2 grams of fat, what is the total energy content in kilocalories?

Accepted Answer

$$(5 	imes 4) + (10 	imes 4) + (2 	imes 9) = 20 + 40 + 18 = 78$$ kcal

Question 12

Which of the following best describes a non-essential nutrient?

Accepted Answer

A nutrient that the body can synthesize in sufficient amounts.

Question 13

Which of the following is NOT one of the five characteristics of a healthy diet?

Accepted Answer

Monotony

Question 14

Which of the following food types is most likely to be energy dense but low in nutrient density?

Accepted Answer

Candy bars

Question 15

Which of the following statements about alcohol is correct?

Accepted Answer

Alcohol provides 7 kcal per gram.

Question 16

A friend claims a new supplement will cure all diseases and is based on a 'secret formula.' Which characteristic of nutrition quackery does this claim best illustrate?

Accepted Answer

Promises of quick and easy remedies

Question 17

Which of the following is a macronutrient?

Accepted Answer

Protein

Question 18

Which of the following is a micronutrient?

Accepted Answer

Vitamin D

Question 19

Which of the following is a valid source of nutrition information?

Accepted Answer

A peer-reviewed scientific journal

Question 20

Which of the following best describes the difference between epidemiological and experimental research designs in nutrition?

Accepted Answer

Epidemiological studies observe populations, while experimental studies manipulate variables to test cause and effect.

Chapter 1: Foundations of Nutrition – Key Concepts and Study Guide

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