Food / Biomolecular Structures Flashcards
Food is needed for
- Energy
- Growth of new cells
- Repair
Six chemical elements in food
CHONPS
Calcium, Hydrogen, Oxygen, Phosphorus, Sulphur
Six components of food
Water, Proteins, Carbohydrates, Lipids, Minerals, Vitamins
Elements of carbohydrates
Carbon
Hydrogen
Oxygen
Three types of carbohydrates
Monosaccharides
Disaccharides
Polysaccharides
Structure of lipids
Carbon
Hydrogen
Oxygen
Main molecules of lipids
Fatty acids
Glycerol
Types of lipids
Triglycerides
Phospholipids
Elements of protein
Carbon
Hydrogen
Oxygen
Nitrogen
Structure of protein
Made of chains of amino acids
Joined together by peptide bonds
Result in formation of polypeptide chains
Fat soluble vitamins
A D E K
Water soluble vitamins
B C
Structural role of carbohydrates
Carbohydrate cellulose is used form plant cell walls
Structural role of protein
Fibrous protein such as keratin is found in skin and hair
Structural role of lipids
Are important food stores in plants and animals