Chapter 17 Flashcards
1
Q
Calorie
A
scientific unit of energy
2
Q
Kilocalorie
A
unit of energy equal to 1,000 calories. amount of heat energy required to raise the temperature of a liter of water by 1 degree Celsius.
3
Q
Macronutrients
A
nutrients that provide calories. Carbs, fats, proteins
4
Q
Protein
A
amino acids linked together by peptide bonds.
5
Q
How many amino acids does the body use to build its proteins
A
20
6
Q
Two classes of amino acids
A
essential and nonessential
7
Q
Essential amino acids
A
cannot be made in the body
8
Q
Nonessential amino acids
A
body can make them from dietary nitrogen and fragments of carbs and fat.
9
Q
Two examples of semi essential amino acids
A
arginine and histidine
10
Q
Complete protein
A
provides all of the essential amino acids
