Energy In Food Flashcards
1
Q
Why do we need energy?
A
It enables the heart to pump blood around the body. Energy gives the brain fuel to think and learn.
2
Q
What is the unit to measure energy in?
A
Joules.
3
Q
What was the unit that was previously used to measure energy in food?
A
Kilocalories
4
Q
Hoe many joules is one kilojoule (kJ) worth?
A
1000 joules (J) = 1 kilojoule (kJ)
5
Q
How many kilojoules are there in 1 gram of protein?
A
17kJ
6
Q
How many kilojoules are there in 1 gram of fat?
A
38kJ
7
Q
Ho meany kilojoules are there in 1 gram of carbohydrates?
A
17kJ
