2.4 - Metabolism in conformers and regulators Flashcards
what are the 3 abiotic factors
temperature, salinity, pH
the ability of an organism to maintain its metabolic rate is affected by …… factors
external factors
a conformers internal environment is …….. upon external factors
dependant
conformers use ……… to maintain ………
behavioural responses, optimum metabolic rate
conformers have ….. metabolic costs and a …….. range of ecological niches
low, narrow
what allows conformers to tolerate variation
behavioural responses
a regulators internal environment is ………. upon external factors
not dependant
regulators use ……… to control their internal environment
metabolism
regulators have a ……. range of ecological niches
large
regulators have …… metabolic costs as regulation requires ………
high, energy
what is the hypothalamus
the temperature monitoring centre of the brain
how is information communicated
by electrical impulses through nerves to the effectors
what do the effectors bring about
corrective responses to return temperature to normal
increased sweating -
body heat used to evaporate water in the sweat, cooling the skin
vasodilation -
increased blood flow to the skin increases heat loss
