Podcast
Questions and Answers
Which type of organisms maintain a high and stable body temperature using internal heat?
Which type of organisms maintain a high and stable body temperature using internal heat?
- Physiology
- Ectotherms
- Endotherms (correct)
- Homeotherms
What is the formula for power required to maintain a heated object at a set point temperature of 37 °C?
What is the formula for power required to maintain a heated object at a set point temperature of 37 °C?
- P = C(Ta – Tset)
- P = C(Ta – Tb)
- P = C(Tset – Ta) (correct)
- P = C(Tb – Ta)
What is the power when the air temperature is 37 °C?
What is the power when the air temperature is 37 °C?
- Zero power (correct)
- Cannot be determined
- Positive power
- Negative power
How does insulation affect the power required to maintain the set point temperature?
How does insulation affect the power required to maintain the set point temperature?
What is the minimum energy expenditure for endothermic homeotherms called?
What is the minimum energy expenditure for endothermic homeotherms called?
What is the equation for power in the physical model below the thermoneutral zone (TNZ)?
What is the equation for power in the physical model below the thermoneutral zone (TNZ)?
What are the vasomotor responses that can change conductance in organisms?
What are the vasomotor responses that can change conductance in organisms?
What is the term for the production of excess heat by non-synchronous muscle contractions?
What is the term for the production of excess heat by non-synchronous muscle contractions?
What is the term for the production of excess heat by futile cycles?
What is the term for the production of excess heat by futile cycles?
What can be achieved by metabolic adjustment or changes in pelage (insulation) to tolerate cold?
What can be achieved by metabolic adjustment or changes in pelage (insulation) to tolerate cold?
Which of the following processes is responsible for the production of excess heat by futile cycles in the mitochondria?
Which of the following processes is responsible for the production of excess heat by futile cycles in the mitochondria?
Which type of fat is specialized for non-shivering thermogenesis?
Which type of fat is specialized for non-shivering thermogenesis?
What is the maximal conductance at and above the UCT (uncoupling thermogenesis) in terms of heat loads?
What is the maximal conductance at and above the UCT (uncoupling thermogenesis) in terms of heat loads?
Which of the following is NOT a mechanism of heat loss above the UCT?
Which of the following is NOT a mechanism of heat loss above the UCT?
What is the main reason why fish are ectotherms?
What is the main reason why fish are ectotherms?
Which of the following is NOT a reason for regional endothermy in fish?
Which of the following is NOT a reason for regional endothermy in fish?
What is responsible for retaining heat (and other things) in a small region in fish?
What is responsible for retaining heat (and other things) in a small region in fish?
What is the elevated temperature of blue fin tuna red muscle compared to water temperature called?
What is the elevated temperature of blue fin tuna red muscle compared to water temperature called?
How many separate occasions has regional endothermy evolved in bony fishes according to the text?
How many separate occasions has regional endothermy evolved in bony fishes according to the text?
What improvements does regional endothermy in fish provide according to the text?
What improvements does regional endothermy in fish provide according to the text?
