samenvatting natuurwetenschappen biochemie

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samenvatting natuurwetenschappen biochemie

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H1 voedingsmiddelen H2 sachariden H3 lipiden H4 eiwitten H5 spijsvertering H7 gezonde voeding

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Hoofdstuk 1: voedingsmiddelen

1. Voedingsstoffen indeling
- Voedingsmiddelen = alles wat je eet of drinkt
- Voedingsmiddelen bestaan uit voedingsstoffen of nutriënten
- Soorten voedingsstoffen:
 Vetten of lipiden
 Sachariden of koolhydraten
 Eiwitten of proteïne
 Vitamines
 Mineralen
 Water

- Onderverdeling via chemische structuur:

Bevatten Voorbeelden
Organische Koolstof – en - vetten - eiwitten
voedingsstoffen waterstofatomen - sachariden - vitamines
Anorganische Geen koolstofatomen - mineralen
voedingsstoffen - water

- Aanbevolen dagelijkse hoeveelheid wordt in groepen verdeeld:

Je lichaam heeft er Voorbeelden
Macronutriënten Veel van nodig - vetten - eiwitten
- sachariden
Micronutriënten Weinig van nodig - vitamines en mineralen

2. Opname of aanmaak
- Heterotrofe organismen
 Zoals dieren
 Halen hun voedingsstoffen uit voedingsmiddelen die via het
spijsverteringsstelsel opgenomen worden
 Water, vitamines en mineralen kunnen via de darmwant
opgenomen worden
 Andere grote organische voedingsstoffen moeten eerst door
vertering in kleine moleculen worden gesplitst
- Autotrofe organismen
 Zoals platen
 Zijn in staat om zelf energierijke voedingsstoffen aan te maken

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Document information

Study: KSO
School year: 5
Uploaded on: March 18, 2021
Number of pages: 20
Written in: 2020/2021
Type: Summary

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