Flashcards in End of y10 test revision Deck (60):
3 functions of protein
To make the body grow
To repair the body
To give the body energy
3 food sources of protein
What are the effects of excess protein?
Pressure and strain on organs
What are the effects of protein deficiency?
Growth slowed down,poor condition of hair and skin,can't digest food properly
2 functions of carbohydrates?
To give the body energy
To help the body get rid of waste products
3 examples of carbohydrates
Effects of excess carbohydrates
Lead to obesity
Can lead to tooth decay
Effects of carbohydrate deficiency
3 functions of fat
To provide store of energy
Insulate the body to keep warm
Protect bones from damage
3 food sources of fat
Effects of excess amount of fat
Gain weight and could become obese
Develop coronary heart disease
Effects of fat deficiency
Body weight lost
The body will chill
What is protein complementation?
Eating difference low biological value protein foods together to get all the essential amino acids that the body needs
2 examples of protein complementation
Beans on toast
Rice and bean salad
What is fibre?
A type of carbohydrate that helps to keep your digestive system working properly and keeps food moving through it.
3 Foods high in fibre
Beans,whole meal bread,pasta
What can a lack of fibre lead to?
Constipation,bowel cancer,heart disease and high blood pressure
How many grams of fibre does the average adult need per day?
Which is healthier,saturated fats or unsaturated fats?
Do unsaturated fats or saturated fats come from animals?
Where do unsaturated fats come from?
What can too much saturated fat caused?
Increase cholesterol levels in the blood which increase the risk of coronary heart disease
3 ways to reduce to saturated fat content
Use ingredients with less than 5% fat
Dry fry meat
Ensure no extra fat is used for cooking
What is obesity?
When the body has too much fat
What causes obesity?
When a person consumes more calories than they can burn off
Key factors contributing towards obesity?
Lack of exercise
Using eating as a coping mechanism
Low income,lack of time,lack of knowledge
Effects of too much sugar
Risk of obesity/type 2 diabetes
Effects of too much fat
Risk of coronary heart disease/stroke/obesity/type 2 diabetes
Effects of too much salt
risk of high blood pressure
Effects of high energy intake
Risk of obesity
Effects of lack of fibre foods
Risk of digestive problems
What is coronary heart disease?
When the coronary arteries are narrowed because they are filled with fatty deposits
Key factors contributing towards coronary heart disease
Eating too much salt
Being overweight or obese
Why do teenagers need protein?
To cope with growth spurts
Why do boys need more protein than girls?
Because muscle tissue develops
Why do teenagers need lots of calcium and vitamin D?
Because they help the skeleton reach peak size and bone density
Why do elderly people need lots of calcium?
To stop bones becoming weak and brittle
Why do elderly people need lots of fibre?
To help prevent constipation as digestive system weakens
What is cross contamination?
When a high risk food contaminates a low risk food by coming in contact with each other
How do you prevent cross contamination?
Storing food in different part of the fridge,washing hands and equipment after handling high risk foods,different coloured chopping boards
What is a high risk food?
Foods that are high in protein and moisture
Why would a roux sauce become lumpy?
The sauce hasn't been consistently stirred
The liquid wasn't added slowly
What can cause bread not to rise when baked?
Temperature of oven too low
Insufficient cooking time
Gluten not been developed by kneading
What is conduction?
Transferring heat through a solid object into food
What is convection?
Transferring heat through a liquid or air into food
What is radiation?
Transferring heat by infra red waves that heat up what they come into contact with
What is the function of salt in bread?
To improve the flavour
What is the function of strong plain flour In bread?
It has a high gluten content
What is the function of yeast in bread?
Carbon dioxide is realeased when the yeast is activated which helps to rise the bread
Advantages of buying locally produced food
Easy to access
Know where the food has come from
Fresher than supermarket
Supports local businesses
What is primary food processing?
When foods see processed straight added harvest or slaughtered to get them ready to be eaten or used
What is secondary food processing?
When primary processed foods are either used on their own or mixed with other foods and turned into other food products
What is aeration?
Whisking traps air and creates a foam and the mixture expands
A product that uses aeration
A product that uses binding
Beef burgers/fish cakes
A product that uses enriching
A product that uses coagulation
A product that uses coating
A product that uses emulsification