Thermoregulation

Question 1

Define ectotherms

Answer 1

body temperature is proportional to the external temperature

Question 2

Define endotherms

Answer 2

maintain a metabolically favorable temperature

Question 3

Which one has a higher metabolicrate than the other one?

Answer 3

Endotherms have a higher metabolic rate than ectotherms

Question 4

What is the relationship between body size and metabolic rate?

Answer 4

For endotherms, as body mass increases, metabolic rate decreases. SA:V decreases as body size increases. Larger endotherms struggle with losing heat and are better at keeping heat.
Smaller endotherms have increase SA:V, lose lots of heat thus need a higher metabolism

Question 5

What is the relationship between activity rate and metabolic rate?

Answer 5

The more active animals are the higher the metabolic rate because they need more energy. As they build more heat inside of them due to more ATP production, the body starts procedures to cool the body down.

Question 6

What does the Q10 value mean?

Answer 6

how much a reaction rate increases for every 10 degree Celsius increase in temperature

Question 7

Relationship between environmental temperature and metabolic rate for endotherms

Answer 7

As environmental temperature decreases, metabolic rate increases. It also increases when temperature decreases because, it is working hard to get rid of the energy

Question 8

Relationship between metabolic rate and environmental temperature for ectotherms

Answer 8

It is directly proportional. As temperature increases, metabolic rate increase

Question 9

Relationship between environmental temperature and body temperature for ectotherms

Answer 9

It is linear and proportional

Question 10

Relationship between environmental temperature and body temperature for endotherms

Answer 10

horizontal; environmental temperature does not effect internal temperature

Question 11

Topor

Answer 11

decreased activity and metabolism to survive harsh conditions and conserve metabolism

Question 13

Estivation

Answer 13

torpor in the summer months, high temperatures and little water

Question 14

What are the disadvantages of ectotherms?

Answer 14

They can’t stay in environments that are too hot or cold because it would hurt them. They have to do behavioral shifts to go to maintain their metabolism. While, endotherms can use cell Respiration and behavior to meet their needs