What is metabolism and how do we measure it Flashcards
what is the first law of thermodynamics
energy is neither created or destroyed
what is the second law of thermodynamics
when energy is converted from one form to another, some of that energy becomes unavailable to do work
Energy is neither created or destroyed, what law is this
1st law of thermodynamics
what law is this, when energy is converted from one form to another, some of that energy becomes unavailable to work
2nd law of thermodynamics
explain entropy
after multiple conversion, all of the energy becomes unusable
what is this calculation
deltaG = (energy of the products) - (energy of the reactants)
free energy change
define the calculation for free energy change
delta G = (energy of the products) - (energy of the reactants)
who discovered that oxygen is the “vital gas” its role in respiration
Priestly/Lavoisier
what did Priestly/Lavoisier discover
oxygen is identified as the “vital gas” with its role in respiration
define calorie
heat input to raise the temp of 1 litre of water by 1 degree
define BMR
Basal Metabolic Rate
minimal caloric requirement measured in an awake individual in absolute physical and mental rest after 12 hours and at environmental temperature of 22.5 degrees
Exercise, a decrease in body fat influences BMR how
decrease in body fat % increases BMR
with age, BMR decreases how much per day
2%
increased thyroxin influences BMR how
increases
BMR can be decreased when
an animal is hibernating
