The Science of Nutrition Chapter 1 Quiz

Questions and Answers

Which of the following BEST describes nutrition?

Nutrition is an ancient science that dates back to the fourteenth century.

Nutrition is the science of food.

Nutrition is the science that studies food and how food nourishes our bodies and influences our health. (correct)

Nutrition is not a science.

Which BEST defines chronic disease?

A condition that has a rapid onset and is easily cured.

A disease caused by a microorganism.

A disease that affects only elderly people.

A disease that comes on slowly and can persist for years. (correct)

Three chronic diseases in the U.S. - heart disease, stroke and ________ - are strongly associated with poor nutrition.

pneumonia

diabetes (correct)

osteoporosis

kidney disease

The health promotion and disease prevention plan for the U.S. is called:

Healthy People 2020. Signup and view all the answers

Which class of nutrients provides the primary source of energy for our body?

carbohydrates Signup and view all the answers

Which element makes protein different from carbohydrate and fat?

nitrogen Signup and view all the answers

Which of the following is classified as a micronutrient?

vitamins Signup and view all the answers

Which of the following are examples of inorganic nutrients?

minerals Signup and view all the answers

Which of the following nutrients is organic?

protein Signup and view all the answers

Kelly consumed a breakfast that contained 85 grams of carbohydrate, 20 grams of protein, and 18 grams of fat. How many kilocalories (kcal) did Kelly eat at breakfast?

582 Signup and view all the answers

For dinner, Marcus consumes 255 grams of carbohydrate, 70 grams of protein, and 50 grams of fat. In addition, Marcus decides that he wants a glass of wine with his meal. If he drinks one glass of wine containing 8 grams of alcohol, how many total kilocalories (kcal) does he consume in this meal?

1,806 Signup and view all the answers

Christopher's lunch contains 121 grams of carbohydrate, 40 grams of protein, and 25 grams of fat. What percent of kilocalories (kcal) in this meal come from fat?

26% Signup and view all the answers

Which of the following are examples of carbohydrate-rich foods?

wheat and lentils Signup and view all the answers

Which of the following is NOT classified as a lipid?

glycine Signup and view all the answers

Which of the following nutrients contains the element nitrogen?

proteins Signup and view all the answers

Which of the following nutrients yields the most energy per gram?

lipid Signup and view all the answers

Which of the following BEST describes minerals?

Inorganic micronutrients are found in a variety of foods. Signup and view all the answers

Alcohol is not considered a ________ because it does not support body regulation, or tissue repair or rebuilding.

nutrient Signup and view all the answers

The building blocks of proteins are called:

amino acids. Signup and view all the answers

Which of the following statements is NOT true?

Lipids are soluble in water. Signup and view all the answers

Study Notes

Nutrition Overview

Nutrition is defined as the science examining food, its nourishment role, and its health impact.
Chronic diseases, such as heart disease and diabetes, develop slowly over years and are often related to poor nutrition.
Healthy People 2020 is the national health promotion and disease prevention initiative in the U.S.

Nutrients and Energy

Carbohydrates serve as the primary energy source for the body.
Proteins are unique due to the presence of nitrogen, distinguishing them from carbohydrates and fats.
Vitamins fall under the category of micronutrients, while minerals, which are inorganic, are essential nutrients.

Calories and Food Composition

Carbohydrates, proteins, and fats contribute different amounts of kilocalories (kcal):
- Carbohydrates and proteins provide 4 kcal/gram.
- Fats yield the highest energy at 9 kcal/gram.
Alcohol provides 7 kcal/gram but is not classified as a nutrient because it does not aid in body regulation or repair.

Food Choices and Classification

Examples of carbohydrate-rich foods include wheat and lentils.
Lipids consist of triglycerides, phospholipids, and sterols, and are not soluble in water.
Glycine is not a lipid; it is an amino acid.

Macronutrients vs. Micronutrients

The building blocks of proteins are amino acids.
Inorganic micronutrients, such as minerals, are necessary for various body functions and are found in a variety of foods.

Nutrition Calculation Examples

Kelly's breakfast of 85g carbohydrates, 20g protein, and 18g fat totals 582 kcal.
Marcus's meal with 255g carbohydrates, 70g protein, 50g fat, and 8g alcohol totals 1,806 kcal.
In Christopher's lunch, 40% of the kcal comes from fat, calculated to be 26%.

Key Misconceptions

Lipids are not water-soluble, contradicting the common misconception that they are.
Alcohol is not a nutrient, emphasizing the distinction between energy sources and essential dietary components.

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Description

Test your understanding of Chapter 1 in 'The Science of Nutrition' with this quiz. Explore key concepts surrounding the definition of nutrition and its significance in food and health. Perfect for reinforcing your learning and preparation for exams.