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GR12 Lewenswetenskappe Homeostase

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11-06-2025

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Hierdie is 'n powerpoint oor "Homeostase" in PDF formaat. Ek gebruik dit huidiglik met my seniors.

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Institution: 12th Grade
Course: Lewenswetenskappe
Schooljaar: 200

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Uploaded on: June 11, 2025
Number of pages: 16
Written in: 2024/2025
Type: Presentation
Person: Unknown

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homeostase

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HOMEOSTAS
E

, Handhawing van ‘n konstante interne omgewing – verseker optimale selfunksie

• Ons liggaam word konstant blootgestel aan intern- en/of ekstern veranderlikes
• Ons selle het spesifieke behoeftes/vereistes om optimaal te funksioneer
• As selle optimiaal funksioneer dan funksioneer die organisme optimaal
• Homeostase behels die regulerende meganismes in plek om te verseker dat die
perfekte omgewing vir selle gehandhaaf word

, Veranderlikes wat beheer moet word :
a) Glukose konsentrasie
b) Water konsentrasie
c) CO2 konsentrasie
d) pH
e) Temperatuur

Word beheer deur NEGATIEWE TERUGVOER

Verandering in
die omgewing
Interne
Reseptor BREIN Effektor omgewing
herstel

Reseptor

Negatiewe
terugvoer

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GR12 Lewenswetenskappe Homeostase

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