12 ATAR Human Biology –
Thermoregulation Exam Questions and
Answers
Thermoregulation - Correct Answers -Maintaining a balance between heat production
and heat loss
Conduction - Correct Answers -Heat transfer in solids
Convection - Correct Answers -Heat transfer in liquids and gas
Radiation - Correct Answers -Anything hotter than its environment will lose heat to the
environment, anything colder that the environment will gain heat from the environment
37 degrees - Correct Answers -Optimal body temperature
Heat gain - Correct Answers -increase in body temperature from body processes such
as metabolism and respiration, and, from the surroundings through conduction and
radiation
Heat loss - Correct Answers -Decrease in body temperature through radiation,
convection and conduction to the surroundings, and, from evaporation of sweat.
increased body temperature - Correct Answers -Thermoregulation Negative Feedback
model - Increased Body Temperature
Stimulus - ________________________________
Receptor- thermoreceptors in the hypothalamus
Modulator- temperature regulation centre in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
, 3. Take off jumper, turn on fan
Negative Feedback- body temperature decreases
thermoreceptors - Correct Answers -Thermoregulation Negative Feedback model -
Increased Body Temperature
Stimulus - increased body temperature
Receptor- _________________ in the hypothalamus
Modulator- temperature regulation centre in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
3. Take off jumper, turn on fan
Negative Feedback- body temperature decreases
temperature regulation centre - Correct Answers -Thermoregulation Negative Feedback
model - Increased Body Temperature
Stimulus - increased body temperature
Receptor- thermoreceptors in the hypothalamus
Modulator- _______________________________ in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
3. Take off jumper, turn on fan
Thermoregulation Exam Questions and
Answers
Thermoregulation - Correct Answers -Maintaining a balance between heat production
and heat loss
Conduction - Correct Answers -Heat transfer in solids
Convection - Correct Answers -Heat transfer in liquids and gas
Radiation - Correct Answers -Anything hotter than its environment will lose heat to the
environment, anything colder that the environment will gain heat from the environment
37 degrees - Correct Answers -Optimal body temperature
Heat gain - Correct Answers -increase in body temperature from body processes such
as metabolism and respiration, and, from the surroundings through conduction and
radiation
Heat loss - Correct Answers -Decrease in body temperature through radiation,
convection and conduction to the surroundings, and, from evaporation of sweat.
increased body temperature - Correct Answers -Thermoregulation Negative Feedback
model - Increased Body Temperature
Stimulus - ________________________________
Receptor- thermoreceptors in the hypothalamus
Modulator- temperature regulation centre in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
, 3. Take off jumper, turn on fan
Negative Feedback- body temperature decreases
thermoreceptors - Correct Answers -Thermoregulation Negative Feedback model -
Increased Body Temperature
Stimulus - increased body temperature
Receptor- _________________ in the hypothalamus
Modulator- temperature regulation centre in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
3. Take off jumper, turn on fan
Negative Feedback- body temperature decreases
temperature regulation centre - Correct Answers -Thermoregulation Negative Feedback
model - Increased Body Temperature
Stimulus - increased body temperature
Receptor- thermoreceptors in the hypothalamus
Modulator- _______________________________ in the
hypothalamus sends out nerve impulses
Effectors
1. Skin arterioles
2. Sweat glands
3. Behaviour
Response
1. Vasodilation
2. Increased sweating
3. Take off jumper, turn on fan
