metabolic rate

Question 1

what is the job of red blood cells?

Answer 1

carry oxygen

Question 2

do red blood cells contain haemoglobin?

Answer 2

yes

Question 3

what is a calorimeter?

Answer 3

a piece of equipment used to measure heat generation from an organism to allow metabolic rate to be calculate

Question 4

name 4 ways metabolic rate can be measured?

Answer 4

using respirometers, oxygen probes, carbon dioxide probes and calorimeters.

Question 5

explain fish’s system of pumping blood around the body?

Answer 5

Fish have a single circulatory system consisting of one atrium and one ventricle.

Question 6

explain amphibians and most reptiles system of pumping blood around the body?

Answer 6

Amphibians and most reptiles have an incomplete double circulatory system consisting of two atria and one ventricle.

Question 7

explain birds and mammals system of pumping blood around the body?

Answer 7

Birds and mammals have a complete double circulatory system consisting of two atria and two ventricles.

Question 8

why do Complete double circulatory systems enable higher metabolic rates?

Answer 8

There is no mixing of oxygenated and deoxygenated blood and the oxygenated blood can be pumped out at a higher pressure. This enables more efficient oxygen delivery to cells.