| A | B |
|---|
| hunger | the body's physical response to the need for food |
| appetite | the desire to eat based on the pleasure derived from eating |
| essential nutrients | six categories of substances from food that nourish the body: carbohydrates, fats, proteins, vitamins, minerals, and water |
| calorie | a unit of measurement for energy. 1 nutrition calorie=1 kilocalorie |
| carbohydrates | a class of nutrients containing starches, simple sugars, glycogen, and dietary fiber. |
| dietary fibre | nutrient not absorbed by the body |
| saturated fat | increases cholesterol in the blood |
| fats | a class of nutrients that supply more energy per gram than carbohydrates or proteins |
| constipation | caused by a lack of fibre in the diet |
| enzymes | control the speed of metabolic reactions |
| insulin | controls blood sugar levels |
| collagen | tough, insoluble , slightly stretchy protein found in bones and skin |
| cholesterol | a fatlike substance that is part of all animal cells and is needed for the production of some hormones and fat digestion |
| proteins | class of nutrients consisting of long chains of amino acids, which are basic components of body tissue and provide energy |
| complete protein | a protein that includes all nine essential amino acids. |
| incomplete protein | a protein that lacks one or more of the essential amino acids. |
| essential amino acids: | a group of nine amino acids that cannot be manufactured by the body and must be supplied by food. |
| vitamins | organic substances that assist in the chemical reactions that occur in the body. |
| minerals: | inorganic substances that are generally absorbed to form structural components of the body. |
| dehydration | a state in which the body has lost more water than has been taken in. |
