Food Flashcards
Structural role of:
1. Carbohydrate (biomolecule)
2. Lipid (biomolecule)
3. Cellulose
4. Chitin
- Component of cell wall
- Component of membrane
- Plant cell wall
- Fungi cell wall
Metabolic role of:
1. Protein
2. Lipids
- Enzymes
pH regulation
Antibodies - Energy source
Carbohydrate general formula
Cx(H2O)Y
Metallic element in haemoglobin
Iron(Fe)
Named Trace elements
Iron(Fe)
Copper(Cu)
Zinc(Zn)
Approx % of water(H20) in Human cell
70-95%
Hydrogen/Oxygen ratio in carbs
2:1
Definition + eg of
1. Monosaccharide
2. Disaccharide
3. Polysaccharide
- One Sugar
Glucose - Two Sugars
Maltose - Multiple sugars
Starch, Glycogen, Cellulose
Element in proteins
(not in carbs or fats)
Nitrogen
Name/ role of plant minerals
Magnesium, Calcium, Copper
- To form component of cell walls
- Necessary for osmosis
- Essential for chlorophyll
Elements found in all proteins
Carbon (C)
Hydrogen (H)
Oxygen (O)
NItrogen (N)
Element sometimes found in proteins
Phosphorous (P)
Sulphur (S)
Amount of common amino acids found in proteins
20
Named fibrous proteins
Keratin
Myosin
Collagen
Sources of protein in diet
Meat
Fish
Dairy
Alkene used to ripen fruit
Ethene
Diet changes that prevent culinary heart disease
Saturated fat reduction
Reduce salt intake
Reduce alcohol intake
Difference between fats and salts at room temp
Fats are solid
Oils are liquid
Difference between a triglyceride and a phospholipid
Triglyceride has 3 fatty acids and no phosphate
Phospholipid has 2 fatty acids and a phosphate
Fat soluble vitamins
+ deficiency disorders
A - Night blindness
D - Rickets
E - Poor nerve impulse conduction
K - Inability to clot blood
Elements present in dissolved salts
Sodium (Na)
Calcium (Ca)
Magnesium (Mg)
