12.7 Integrative Metabolism Flashcards
What is Calorimetry?
Measure of Basal metabolic rate via heat exchange in the environment.
What is Respirometry?
Measures respiratory quotient depending on CO2 produced divided by O2 produced.
What is Respiratory Quotient?
Estimates fuel that is actively consumed by the body.
What is Ghrelin?
Secreted by the stomach in response to signals of an impending meal.
What is Orexin?
Further increases appetite, and is also involved in alertness and the sleep–wake cycle.
What is Leptin?
A hormone secreted by fat cells that decreases appetite by suppressing orexin production.
Long term body mass change results from?
Changes in lipid storage
What is Threshold for body mass?
Larger changes must be made to lose weight than to gain it.