3.1 What do you eat?

Welcome everyone 
 Think about...
  • Take off your coat, hat off.
  • Mobile in the phone bag (on silent).
  • Book (laptop) + notebook, pen on the table. Bag on the floor.
  • Sit in your own place!
  • You can eat and drink in the canteen.
  • 5 minutes.
timer
5:00
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Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 2

This lesson contains 22 slides, with text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Welcome everyone 
 Think about...
  • Take off your coat, hat off.
  • Mobile in the phone bag (on silent).
  • Book (laptop) + notebook, pen on the table. Bag on the floor.
  • Sit in your own place!
  • You can eat and drink in the canteen.
  • 5 minutes.
timer
5:00

Slide 1 - Slide

schedule 
  • Repetition 3.1             10 min.
  • Explanation 3.2         10 min.
  • Doing Excercises        
  • Closing                           5 min. 

Slide 2 - Slide

Learning goals 
You will know..
  • what a joule/callorie is.
  • wicht nutreints there are.
  • wich nutrients whe need to break down. 

Slide 3 - Slide

Energy 
  • All of your body’s activities require energy.
  • Energy can be measured in joules or calories
  • On food lables you van often find the amount of energy in 100 gram of that food, measured in kilo joule or kilo calorie.
  • Example
- Glass of water = 0 kj
- Biscuit = 100 kl
- Chocolate bar = 1000 kj



Slide 4 - Slide

How much Energy? 
  • The higher your activity level, the more energy 
you need.
  • How much energy you need depends on: 
- your gender
- your heigt 
- your activity 

Slide 5 - Slide

Slide 6 - Slide

Why do we need food?
  • To supply us with fuel for energy.
  • To provide materials for growth and repair of tissues
  • To help fight disease and keep our bodies healthy.

  • Nutrients (voedingsstoffen) = substances in food that provide your body with energy and other materials.

Slide 7 - Slide

The 6 nutrients have 4 different functions

Building blocks
Fuels (energy)
Reserves
Protective substances 

Slide 8 - Slide

building blocks
Growth and development
repairing wounds 
making new cells and tissues

Proteins                  Water
Carbohydrates     Minerals
Fats                            Vitamins


Slide 9 - Slide

Fuels
In every cell is respiration. 
Energy, movement, warmth

Proteins
Carbohydrates
Fats

Slide 10 - Slide

Reserves
Nutrients can be stored up in the body

Carbohydrates
Fats

Slide 11 - Slide

Nutrients
- Proteins (eiwitten)
- Carbohydrates (koolhydraten)
- Fibre
- Fats (vetten)
- Water 
- Minerals (mineralen)
- Vitamins (vitamines)

Slide 12 - Slide

Carbohydrates 
  • Carbohydrates are the main source of energy in your body.
The three types of carbohydrates:
- Sugar
- Starch (zetmeel)
- Fibre (vezels)--> (complex carbohydrate) Is found in the cell walls of plant cells. You cannot break down fibre. It helps your digestive system working smoothly.

Slide 13 - Slide

Carbohydrates 
  • Simple carbohydrates
    - Sugar
    - It consists of small particles that van easily enter your bloodstream and reach your cells.
  • Complex corbohydrates
    - Starch
    - It is made up of long chains of many simple        carbohydrates. 
-    These chains are too arge to enter                             your bloodstream. They have to be                           broken down into sugars first.

Slide 14 - Slide

Proteins 
The body needs proteins to grow and replace/repair cells.




Too much protein/too little carbs--> body will use protein  as feul (energy).

Slide 15 - Slide

Fats  
A source of energy and storage units for energy. 
three main types:
- saturated: solid at roomtemp. can cause heart problems.
- unsaturated: liquid, healthyer 
- trans: special type of unsaturated--> chemically alterd to sty liquid. Bad for you

Slide 16 - Slide

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Slide 18 - Slide

Vitamins  and Minerals  
Needed for growth and protection against disease. 
  • Sometimes work together
  • minaral zinc helps body to obtain 
vitamin C for example. 

Slide 19 - Slide

Scheurbuik
Scurvy :in navigators 'pirates' due to lack of vitamin C
Solution: Take fresh lemons/oranges with you on the trip.

Slide 20 - Slide

 Water   
  • Water is an essential nutrient at every age.
  • Optimal hydration is a key component for good health.
  • Water accounts for about 60% of an adult's body weight. 
  • We drink fluids when we feel thirst, the major signal alerting us when our body runs low on water.

Slide 21 - Slide

Closing 
  • fill in a survey for me.  

Slide 22 - Slide