2.3 - Metabolic rate Flashcards
What factors can be measured to compare metabolic rates
Oxygen consumption, carbon dioxide, heat production
what instruments can be used to measure metabolic rate
respirometer, oxygen probes, carbon dioxide probes and calorimeters
what do organisms with high metabolic rates require more of
efficient delivery of oxygen to cells
which animals have high metabolic rates
birds and mammals
which animals have neither a high or low metabolic rate
reptiles and amphibians
which animals have a low metabolic rate
fish
describe birds and mammals circulatory system
a complete double circulatory system consisting of two ventricles
describe Reptile and amphibians circulatory system
an incomplete double circulatory system consisting of 2 atria and one ventricle
describe fish’s circulatory system
a single circulatory system consisting of 1 atrium and one ventricle
complete double circulatory systems enable what
higher metabolic rates to be maintained
describe a complete double circulatory system
there is no mixing of oxygenated and deoxygenated blood and the oxygenated blood can be pumped out at a higher pressure
