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Chapter 6: Problem 3

List three major roles played by each class of foodstuffs: proteins, carbohydrates, and lipids.

Short Answer

Expert verified
Proteins function in building and repairing tissues, act as components of enzymes and hormones, and can provide energy. Carbohydrates are the main energy source, regulate fat and metabolic procedures, and assist in digestion. Lipids provide concentrated energy, protect and insulate the body, and maintain cell membranes.

Step by step solution

01

- Understand the Role of Proteins

Proteins are necessary for building and repairing tissues, cells, and organs in the body. Second, they are the essential components of enzymes and hormones. This allows them to control several chemical activities in the body. Third, when carbohydrates and lipids are in short supply, proteins can provide the body with energy.
02

- Understand the Role of Carbohydrates

Firstly, carbohydrates provide the main source of energy for all body functions. Secondly, they assist in the regulation of fat and metabolic procedures. Lastly, indigestible carbohydrates, also known as dietary fiber, helps in elimination and can reduce symptoms and the risk of various digestive problems.
03

- Understand the Role of Lipids

Lipids have three main functions in the body as well. Firstly, they provide a concentrated form of energy. Secondly, they insulate and protect the body and organs by providing a protective layer. Thirdly, they are necessary for the production of certain hormones and play a key role in maintaining cell membranes.

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