2.3 Criteria

Question 1

What is the use of a respirometer?

Answer 1

To measure metabolic rate

Question 2

How is metabolic rate Calculated?

Answer 2

It can be calculated by measuring oxygen consumption using an oxygen probe and by measuring the carbon dioxide production using a carbon dioxide probe.

Question 3

How is metabolic rate Measured?

Answer 3

By the production of heat in a calorimeter

Question 4

Do birds and mammals have a high or low metabolic rate?

Answer 4

High

Question 5

Do reptiles and amphibians have a high or low metabolic rate?

Answer 5

Low

Question 6

Do fish have a higher or lower metabolic rate that amphibians or mammals?

Answer 6

Lower

Question 7

What organisms have a complete double circulatory system with two atria and two ventricles?

Answer 7

Mammals and birds

Question 8

What animals have an incomplete double circulatory system with two atria and one ventricle?

Answer 8

Amphibians and reptiles

Question 9

Is the circulatory system between mammals and birds complete or incomplete?

Answer 9

complete

Question 10

Is the circulatory system between amphibians and reptiles complete or incomplete?

Answer 10

incomplete

Question 11

What animal has a single circulatory system with one atrium and ventricle?

Answer 11

fish

Question 12

How do complete double circulatory systems enable higher metabolic rate to incomplete double circulatory systems?

Answer 12

Because it prevents the mixing of oxygenated and deoxygenated blood

Question 13

How do double circulatory systems enable higher metabolic rates compared to single circulatory systems?

Answer 13

Because it keeps blood at high pressure allowing efficient oxygen delivery to cells