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Samenvatting voortplanting

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Samenvatting van 3 pagina's voor het vak biologie aan de UCLL (voortplanting)

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Osmoregulatie
Secretie – excretie




Osmoregulatie
Osmose: verplaatsing van waterdeeltjes tegen de concentratiegradiënt in




Vissen
Kraakbeenvissen
 Vb haai
 Isotoon
Beenvissen
Clownvis  zout water (= hyptertoon)
 Water gaat uit de vis
 Gevaar: uitdroging
 Schaarse, geconcentreerde urine
 N-eindproduct: ureum (ureotelisch)
Snoek  zoet water (=hypotoon)
 Water gaat in de vis
 Gevaar: opzwellen
 Oplossing
o Niet drinken
o Op zoek naar voeding met hoog zoutgehalte
o Zout actief opnemen met kieuwen

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Uploaded on
May 19, 2024
Number of pages
3
Written in
2023/2024
Type
Summary
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