Unit 2 KA3 Metabolic Rate Flashcards
What Is an organisms metabolic rate
Is the amount of energy expended by that organisms in a given time period
How can someone’s metabolic rate be compared
By measuring oxygen consumption, carbon dioxide and energy output in thr form of heat
What does indirect calorimetry
Measures the respiration in an organism by measuring 02 uptake or CO2 production
In a respirometer what direction does the liquid go
Will move towards the organisms
When the organisms is more active what happens to the energy
Higher engery cost
Basal metabolic rate
The energy required by an organism at rest
BMR is measured in
Oxygen consumed
Do mammals and birds have a High metabolic rate or low?
High
Do mammals and birds have a higher metabolic rate then fish and reptiles
Yes
Do fish have a High or low metabolic rate
Low
What is required for aerobic respiration
Oxygen
What do organisms with higher metabolic rate need?
They need efficient delivery of O2 to their cells
What is the heart responsible for
Delivery oxygen to the cells
What direction do the arteries go
Away from the heart
What is the function of the heart
To carry blood away from the heart
