Protien, Charbohydrates & Energy Flashcards
Name 2 ways energy is measured
Kilocalories (kcal) & kilojoules (kJ)
What are empty calorie foods and give 2 examples
Empty calorie foods are food that have lots of sugar but provide little to no energy eg. Crisps & poptarts
How many calories should you take daily
2000 - 3000 calories but around 300 more if you are pregnant
Name 5 factors that effect calories
Gender, climate, activity levels, age & pregnant
What does BMR stand for
Basal metabolic rate
What is energy balance
Extra energy is needed for activities. The body needs basic amount of energy to keep the body’s organs functioning while at rest. When the energy balance is right the body remains healthy.
Denfine the word elemental composition
Individual chemicals eg. Protein is made from Carbon, hydrogen, oxygen & nitrogen and carbohydrates are made of Carbon, hydrogen, oxygen
Give 3 functions of carbohydrates
- Carbohydrates provide most of the body’s heat and energy
- excess carbohydrates are stored as fat ( adipose tissue ) which insulates that body
- dietary fibre prevents constipation and helps prevent disease in the bowel
Name 1 function of protein
Protein is needed for growth and repair of all body cells (skin, blood, tissue and bone ) a person needs 1g of protein per kg they weigh
Classification of carbohydrates & give 2 examples of each
There are 3 different group
- sugar ( honey & cakes )
-starch (potatoes & flour )
-dietary fiber (whole cereals & wholemeal bread )
6 sources of carbohydrates
Honey, cakes, cereals, flour, fruit, wholemeal bread
3 sources of protein
Meat, fish & eggs
2 Classification of protein
High biological value (HBV) proteins -animal origin and meant alternatives
Low biological value (LBV) proteins -vegetable origin
2 types of Deficiency of protein
Hair breaking and loss & slow healing wounds
3 functions of fibre
- prevents bowel disease such as cancer
- makes you feel full
- absorbs water as it passes through the digestive system
4 sources of fibre
Green peas
Avocado
Bran flakes
Popcorn
