KA3 Metabolic Rate

Question 1

Describe fish circulation

Answer 1

Have one single complete circulatory system
1 atrium
1 ventricle
2 chambers

Question 2

What is a metabolic rate

Answer 2

The amount of energy expended by an organism in a given period of time

Question 3

What is circulatory systems in vertebrates

Answer 3

Vertebrates have a closed circulatory system where the blood is contained I. A continuous circuit of blood vessels an pumped by the heart

Question 4

What can be used to measure metabolic rate

Answer 4

Respirometers
Oxygen probe
Carbon dioxide probe
Calorimeters

Question 5

Describe amphibians nd reptile circulation

Answer 5

Incomplete double system
2 atriums
1 ventricle
3 chambers

Some mixing of oxygenated and deoxygenated blood

Question 6

Describe birds and mammals circulation

Answer 6

2 ventricles
2 atriums
Seperted by a septum

No mixing of oxygenated and deoxygenated blood

Have complete double circulation system so very efficient

Alloa oxygenated blood to pump out at high pressure and provide efficient oxygen delivery too cells

Question 7

What is oxygen delivery for metabolism

Answer 7

Organisms with high metabolic rates need an edifice nr transport system to delivery large supplies of oxygen to respiring cells