Metabolic Rate Flashcards
What can metabolic rate be measured with?
Can be measured using respirometers, oxygen probes, carbon dioxide probes and calorimeters.
What has the highest metabolic rate
Birds and mammals
What has the middle metabolic rate
Amphibians
What has the lowest metabolic rate
Fish
What do birds and mammals have?
Birds and mammals have a double complete circulatory system consisting of two atria and two ventricles.
What do amphibians have
Amphibians and most reptiles have a double incomplete circulatory system consisting of two atria and one ventricle.
What do fish have
Fish have a single circulatory system consisting of one atrium and one ventricle
What do complete double circulatory systems enable?
They enable higher metabolic rates to be maintained. No mixing of oxygenated and deoxygenated blood and oxygenated blood can be pumped out at higher pressure. Enables more efficient oxygen delivery to cells.
How to compare metabolic rates
Measurement of oxygen consumption, carbon dioxide and heat production to compare metabolic rates
