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Card 6
Front
What is the operculum?
Back
Card 7
Front
Water flows in an opposite direction to the blood stream in the gill lamellae- what is this called?
Back
Card 8
Front
What is the benefit of a counter-current flow for gas exchange?
Back
Card 9
Front
How is a diffusion gradient maintained throughout the whole length of the lamellae?
Back
Card 10
Front
What percentage of oxygen is transferred from water to blood with a counter-current flow mechanism?
Back
Card 11
Front
Name three components to a fish gill
Back
Card 12
Front
How do the gill lamellae increase the rate of diffusion?
Back
Card 13
Front
How do fish ventilate their gills?
Back
Card 14
Front
Why is gill ventilation important?
Back
Card 15
Front
What active process is used with the operculum opening to push water out?
Back
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