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Chapter 8: Problem 7

What is the chief contribution of each of these in the body: carbohydrates, proteins, fats, fruits, and vegetables? (pages \(173-78\) )

Short Answer

Expert verified
Carbohydrates provide the body's main source of energy and are essential for the proper functioning of the brain, heart, and nervous system. Proteins act as the building blocks of the body and are used for growth, tissue repair, and enzyme creation. Fats provide concentrated energy, essential fatty acids, and help with the absorption of fat-soluble vitamins. Fruits are important sources of vitamins, minerals, antioxidants, and fiber, which can lower the risk of various diseases and aid digestion. Vegetables, similar to fruits, are packed with essential nutrients and fiber that contribute to overall health and disease prevention.

Step by step solution

01

Carbohydrates

Carbohydrates are the body's main source of energy. They are broken down into glucose, which can be used immediately or stored in the liver and muscles to be used later. Carbohydrates are essential for the proper functioning of the brain, heart, and nervous system. Sources of carbohydrates include grains, fruits, and vegetables.
02

Proteins

Proteins are the building blocks of the body. They are used for growth, tissue repair, and the creation of enzymes. Proteins are crucial for building and maintaining muscles, bones, and skin. They also play a role in the production of hormones and maintaining fluid balance. Sources of proteins include meat, dairy products, eggs, and legumes.
03

Fats

Fats are a concentrated source of energy and provide essential fatty acids that the body cannot produce on its own. They are necessary for brain development, blood clotting, and controlling inflammation. Fats also help the body absorb fat-soluble vitamins (A, D, E, and K) and protect vital organs. Sources of fats include oils, nuts, seeds, and fatty fish.
04

Fruits

Fruits are an important source of vitamins, minerals, and antioxidants. They can help lower the risk of heart diseases, cancer, and other chronic diseases. Fruits are also a great source of dietary fiber, which aids digestion and reduces the risk of obesity. Incorporating a variety of fruits in the diet provides a wide range of essential nutrients.
05

Vegetables

Similar to fruits, vegetables are packed with vitamins, minerals, and antioxidants. They are also rich in dietary fiber, which promotes healthy digestion and prevents constipation. Vegetables can help reduce the risk of heart disease, diabetes, and certain types of cancer. Eating a variety of vegetables ensures a broad range of nutrients for optimal health.

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Most popular questions from this chapter

Name the enzymes involved in the digestion of starch, protein, and fat, and tell where these enzymes are active and what they do. (page 165 )

The products of digestion are a. large macromolecules needed by the body. b. enzymes needed to digest food. c. small nutrient molecules that can be absorbed. d. regulatory hormones of various kinds. e. the food we eat.

The amino acids that must be consumed in the diet are called essential. Nonessential amino acids a. can be produced by the body. b. are only needed occasionally. c. are stored in the body until needed. d. can be taken in by supplements.

An organ is a structure made of two or more tissues performing a common function. Which of the four tissue types are present in the wall of the digestive tract? a. epithelium b. connective tissue c. nervous tissue d. muscle tissue e. All of these are correct.

Match each statement to an answer in the key. Answers may be used more than once. Some may have more than one answer. a. gastrin b. secretin c. \(\mathrm{CCK}\) d. All of these are correct. e. None of these is correct. Stimulates the stomach to digest protein
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