Thermoregulation Exam Questions and Answers 100% Solved
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Course
Physiology
Institution
Physiology
Thermoregulation Exam Questions and
Answers 100% Solved
What are ectotherms? - Organisms that depend on the environment
for their heat energy
What are endotherms? - Organisms that generate most of their body
heat from internal metabolic processes
Do most animals fall somewhere between the two...
What happens below the optimum temperature? - ✔✔Metabolic
reactions proceed very slowly
What happens above the optimum temperature? - ✔✔Enzymes may
become damaged and the reaction does not proceed
Are most mammals ectothermic or endothermic? - ✔✔Endothermic
What is thermoregulation? - ✔✔A term that describes the regulation of
body temperature in the face of changes in the temperature of the external
environment.
What are the two extremes of body temperature tolerance? -
✔✔Homeotherms and poikilotherms
What are homeotherms? - ✔✔They maintain a constant body
temperature. They are usually strict thermoregulators
What are poikilotherms? - ✔✔They allow their body temperature to vary
with the temperature of the environment. They usually thermoregulate to
avoid overheating.
Are most animals at these two extremes? - ✔✔No, they follow
somewhere on a continuum between them
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