Biology 2601A/B Lecture Notes - Lecture 3: Hydrogenase, Glycogen, Acetylcholinesterase
During winter, the organism follows the solid line, so to get this specific
etaoli rate, the orgais does’t hae to e as ar as it ould
need to e if it did’t opesate i.e. the speifi etaoli rate a
occur at the lower temperatures that occur in the winter)
During summer, the organism follows the dotted, so to get this specific
etaoli rate, the orgais does’t hae to e as old as it would need
to e if it did’t opesate i.e. the speifi etaoli rate a our at
the higher temperatures that occur in the summer)
Note: During the winter, as part of compensation, the metabolic curve
increases (i.e. the relationship between temperature and MR gets more
exponential during the winter)
Compensation results in a shift in the acute temperature response curve:
- At one point in the year (winter), the metabolic rate increases
exponentially with the increase in temperature
- At another point in the year (summer), the metabolic rate still increases
exponentially with the increase in temperature, but at a slower rate
- In both cases, metabolic rate still follows the basic exponential curve,
but during the year there is a shift from the solid curve to the dotted
curve and back to the solid curve
- During the summer (higher temperatures) metabolic rate
increases (acute response) so to compensate, organisms will
follow the dotted line to slow down their metabolism
- During the winter (lower temperatures) metabolic rate
decreases (acute response) so to compensate, organisms will
follow the solid line to speed up their metabolism
- This means a specific metabolic rate (solid horizontal blue
line) can occur in different seasons (at higher and lower
temperatures) i.e. compensation allows the organism to
maintain a constant optimal metabolic rate regardless of the
change in temperature
- The metabolic rate still follows exponential increase, but
during the year, compensation helps shift acute response (so
that etaolis does’t get too high or too lo ad aitais
a fairly constant rate)
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Document Summary
Note: during the winter, as part of compensation, the metabolic curve increases (i. e. the relationship between temperature and mr gets more exponential during the winter) Compensation results in a shift in the acute temperature response curve: At one point in the year (winter), the metabolic rate increases exponentially with the increase in temperature. At another point in the year (summer), the metabolic rate still increases exponentially with the increase in temperature, but at a slower rate. In both cases, metabolic rate still follows the basic exponential curve, but during the year there is a shift from the solid curve to the dotted curve and back to the solid curve. During the summer (higher temperatures) metabolic rate increases (acute response) so to compensate, organisms will follow the dotted line to slow down their metabolism. During the winter (lower temperatures) metabolic rate decreases (acute response) so to compensate, organisms will follow the solid line to speed up their metabolism.