Chapter 17 - Nutrition Flashcards
The process by which a living organism assimilates food and uses it for growth and repair of tissues.
Nutrition
The amount of heat energy required to rais the temp of 1 gram of water 1 degree celsius.
calorie
A unit of expression of energy equeal to 1000 calories.
Calorie or Kilocalorie
amino acids linked by peptide bonds
protein
Isoleucine, Leucine, Lysine
Methionine, phenylalanine, threonine,
tryptophan, valine
Essential amino acids - obtained from outside sources
Alanine, asparagine, aspartic acid,
cysteine
glutamic acid, glutamine,, glycine
Proline, serine, tyrosine
non-essential amino acids - manufactured in the body
arginine and histidine
semi-essential - not manufactured in the body at a usable rate
recommended protein intake:
sedentary adult
strength athlete
endurance athlete
.4g/lb
.5 -.8g/lb
.5-.6g/lb
Neutral compounds of carbon, hydrogen, and oxygen (such as sugars, starches, and celluloses), which make up a large portion of animal foods
carbohydrates
recommended intakeof fiber is _____ g for young men and ________ g per day for young women
38 / 25
A group of compouns that includes triglycerides (fats and oils), phospholipids, and sterols.
lipids
Provide important essential fatty acids.
polyunsaturated fatty acids
Implicated as a risk factor for heart disease because they raise bad cholestorol levels.
saturated fatty acids
bad cholesterol
LDL
good cholesterol
HDL