3.1 What do you eat?

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 3

3.1 What do you eat?

goals

- you know the difference between a joule and a calorie and how to calculate the energy (if you know one of them)

- you know all the different types of nutrients and in which types of food you can find them

- you know a little about vitamins and minerals

Why do we eat?

REMEMBER ?

What do we use energy for?

The function of the digestive system is to put the nutrients from your food into the circulatory system. 

joule or calorie?

they are both a measure of energy

1 calorie = 4,186 Joules

Usually food is measures in kcal or kJ (k=1000) so 1 kJ is 1000 joules

How many kJ is 3 kcal?

1. 0,8 kJ
2. 7,6 kJ
3. 12,6 kJ
4. 9 kJ

Which food has more calories?

1. 
2. 

A Big Mac contains 2138 kJ.

How many Kcal is that?

1. 508
2. 509
3. 8979
4. 8980

Which has more calories? A mojito or tortilla chips?

1. 
2. 

Which has more calories? Banana chips or pretzels?

1. 
2. 

NOTE. NUTRIENTS

Make a table for your own notes:

nutrient

(use the subgroups as well)

what do we use it for?

which food group contains it