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Atkins Par L And Ll

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Atkins Par L And Ll
Part l

5. Which substances supply energy to the human body?

Nutrients- substances in foods that provide energy and form body tissue necessary for life and growth.

-Carbohydrates- sugars, starch and fibre
-Fats- main form of energy storage in the body
-Proteins- amino acids require to build and repair body structures and to regulate processes in the body

Part ll

1. Find out how the medical community defines “obesity.” What factors contribute to obesity?

Obesity is an abnormal accumulation of body fat, usually 20% or more over an individual's ideal body weight. Obesity is associated with increased risk of illness, disability, and death.
The branch of medicine that deals with the study and treatment of obesity is known as bariatrics. As obesity has become a major health problem in the United States, bariatrics has become a separate medical and surgical specialty.
Many factors can contribute to obesity and overweight, including lifestyle choices (e.g., lack of exercise, too little sleep), medical conditions (e.g., hypothyroidism) and genetics (i.e., heredity). When a person takes in more calories than he or she uses, overweight and obesity result.

2. Not necessary

3. What is “metabolism”? What does human metabolism have to do with energy balance and body weight?
Metabolism is the set of life-sustaining chemical transformations within the cells of living organisms. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments.
Metabolism is the process in which the body gets energy from food. It affects body weight because food is measured in calories which the body needs to function everyday. Additional calories must be burned through physical activity or else it will be stored as fat.

4. Janine said that increasing muscle mass increases metabolism. Is she right? If so, how does this work? If not, why not? Check a biology textbook for information on the structure of muscle cells for

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