Proteins

1
Proteins

• Composed of C, H, O, and N
• Have an amino group (NH2)
• Have a carboxylic acid group (COOH)
• building block amino acids

2
PROTEINS
3
PROTEINS

• USES
• enzymes, antibodies,
• hormones, helps blood clot,
• muscles, cell structure

4
Protein gm/day
Females 11-14 years 46
15-18 years 44
19-24 years 46
Males 11-14 years 45
15-18 years 59
19-24 years 58
5
LIPIDS

• Also called fats
• monounsaturated (1 double bond)
• polyunsaturated (2 double bonds)
• saturated (no double bonds)
• plants make unsaturated fats
• animals make saturated fats
• building block fatty acids

6
LIPIDS
7
LIPIDS

• USES
• build cell membrane,
• synthesize hormones,
• protect organs,
• protect from the cold

8
Carbohydrates

• USES
• energy for respiration
• some stored in the liver
• as glycogen

9
Monosaccharides
10
Making a disaccharide
11
Polysaccharides(100-6000 glucose units)

• starchstored energy in plants
• cellulosesupport in plants
• glycogen animal starch
• building block glucose units