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Chapter 18: Nutrition and Metabolism
BIO 169: Anatomy and Physiology
11
Biology
Undergraduate 2
03/02/2012

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Term
Nutrients
Definition
Are chemical substances supplied from the environment that an organism requires for survival
Term
Macronutrients
Definition
Are carbohydrates, proteins, and fats
Term
Micronutrients
Definition
are essential in small daily doses and include vitamins and minerals
Term
Besides nutrients, the body also requires?
Definition
Water
Term
Digestion breaks down
Definition
Nutrients to sizes that can be absorbed and transported in the bloodstream
Term
Metabolism
Definition
refers to the ways that nutrients are altered chemically and used in anabolism and catabolism of chemical compounds to support the activities of life.
Term
Anabolism
Definition
is the synthesis part of metabolism
Term
Catabolism
Definition
is the decomposition part of metabolism
Term
Essential nutrients
Definition
are nutrients that human cells cannot synthesize
Term
Leptin regulates
Definition
fat stores in the long term
Term
Cholecystokinin signals?
Ghrelin Stimulates?
Definition
Cholecystokinin signals satiety (absence of hunger) after eating. While Ghrelin stimulates appetite.
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