Half Term 3 Flashcards
(20 cards)
What are the 2 main functions of carbohydrates in the body
Gives the body energy
Bowel movement
State the two monosaccharides
Glucose
Fructose
Star the name of two disaccharides
Maltose
Sucrose
Name two types of polysaccharides
Starch
NSP
State a deficiency of carbohydrates
Lack of energy or tiredness
What is the name given to the reaction what occurs when food containing starch is cooked by dry heat and develops a brown colour
Caramelisation
Is fat classed as a micronutrient or a macronutrient
Macronutrient
Name the two different sources of fat
Unsaturated
Saturated
How much energy is provided by 1g of fat
9kcals
Describe the chemical structure of fat
Glycerol Fats - fatty acids
-fatty acids
- fatty acids
What percentage of food energy should come from fat
35%
Describe what happened to the starch in a sauce at 60C
Starch granules begin to swell as they absorb water
Describe what happened to the starch in a sauce at 80C
Starch granule burst which will thicken the sauce
Describe what happened to the starch in a sauce at 100C
The starch has thickened and the sauce is done
What are fats when they are a liquid at room temperature
Oils
What is the term used to describe fatty acids which cannot be made in the body
Essential fatty acids
Name two food sources which produce essential fatty acids
Omega 3 and omega 6
Name four functions for fat in the body
Insulation
Protects organs
energy
Gives body essential fatty acids
Explain a deficiency of fat in the diet
Become cold more quickly as you have less insulation to keep your body warm
State two effects of excess fat in the diet
Obesity
Risk of heart attacks
