Thyroxin

Question 1

What are ectotherms

Answer 1

Thermoconformers that don’t produce heat rather they seek out environments that fit their needs

Question 2

What are endotherms?

Answer 2

When it’s cold out, they increase metabolic heat production to keep their body temperature constant. Because of this, the internal body temperature of an endotherm is more or less independent of the temperature of the environment.

Question 3

What is thermogenesis?

Answer 3

Brown adipose tissue , which is packed with iron-rich mitochondria, burns to create heat

Question 4

How is the baseline metabolic rate of an ectotherm measured?

Answer 4

Standard metabolic rate (SMR)

Question 5

How does the metabolic rate graph for ectotherms look like?

Answer 5

Positive linear graph

Question 6

How is the baseline metabolic rate of an endotherm measured?

Answer 6

Basal metabolic rate (BMR)

Question 7

How does the metabolic rate graph for endotherms look like?

Answer 7

Constant horizontal line

Question 8

What is T4

Answer 8

Thyroxin

Question 9

What is T3?

Answer 9

Triiodothyronine

Question 10

What happens to thyroxin as the body becomes cooler?

Answer 10

Triggers increased thyroxin secretion by the thyroid gland

Question 11

What happens when thyroxin increases?

Answer 11

Increase in metabolic rate, which increases heat generation, which causes body temperature to rise