Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
ATP |
oxygen is necessary for the effective production of ATP from nutrients in cells |
|
|
oxygen |
is drawn for air or water by diffusion |
|
|
Respiratory organs |
are attached to circulatory systems so that diffusion is sufficient to provide enough oxygen |
|
|
oxygen content of water |
ranges from 1-10mL of O2 per L of water |
|
|
In a fish |
exchange of gases occurs across the secondary lamellae of the gills |
|
|
Ventilation volume |
is a function of both ventilation rate and ventilation depth |
|
|
counter-current exchange system |
the flow of water in the direction that is opposite to that of the flow of blood in the capillaries of the gills -ensures efficient extraction of oxygen from the water by the gills |
|
|
carbon dioxide |
produced by fish diffuses from the blood into the water passing over the gills and is thus removed from the body of the animal |
|
|
closed chamber |
reduces the amount of oxygen in the medium |
|
|
fish are |
ectotherms -rate of oxygen consumption will increase as temp increases -amount of oxygen dissolved in the water decreases as temperature increases |
|
|
fish in warm water |
faces a double problem with oxygen: increased demand and decreased supply |
|
|
size of animal |
generally, larger fish consume more oxygen overall than smaller but on a per gram basis smaller fish consume more oxygen than large fish QO2 |
