Protein CH 7

Proteins are made up of _____ different types of _____ ________.

Proteins are made up of _____ different types of _____ ________.

• 20

• amino acids

Structure

central carbon, acid group, NH2 group, side group

Only proteins have an _________ group.

amine

What makes the protein unique?

side group

High quality amino acids

• complete protein

• 9 essential amino acids

• animal source

High quality amino acids digestibility

90-99%

Low quality amino acids

• incomplete protein

• missing 1 or more essential amino acids

• plant source

Low quality amino acids digestibility

70-90%

RDA Recommendation

0.8 g/kg

ADMR

10-35%

Too much protein health effects:

• burden on kidneys

• increases osteoporosis

• increases fat

Functions of protein

• growth and maintenance and repair

• transport protein

• enzymes, antibodies balance

• amino acid pool after digestion

Small intestine

proteases and peptidases

stomach

hydrochloric acid