Definitions Flashcards
Homeotherm
maintains body temperature at a constant level by metabolic activity (body temperature usually higher than environment)
Heterotherm
Variable body temperature (exhibits both homeothermy and poikilothermy)
Poikiliotherm
an organism that cannot regulate its body temperature except by behavioural means such as basking or burrowing.
Ectotherm
Organism dependant on external sources of heat
Endotherm
Organism capable of internal generation of heat
Stenotherm
able to tolerate small changes in temperature
Eurytherm
able to tolerate large changes in temperature
Conduction
Direct transfer of heat (skin on skin)
Radiation
Indirect transfer of heat - sun to skin
Convection
Transfer of heat by gas (fire - skin)
Evaporation
Phase transition - cooling effect - water to gas is a endothermic reaction
UCP?
UnCoupling Protein
BAT
Brown Adipose Tissue
Q10
A measure of temperature sensitivity of an enzymatic reaction rate or a physiological process due to an increase by 10 degrees.