CH 6.1 Flashcards
metabolism
the collection of chemical reactions that occur in an organism
catabolic
breaking down molecules, releasing energy
anabolic
building molecules, consuming energy
bioenergetics
the study of the flow of energy through living organisms
energy
the capacity to cause change; some forms of energy do work by moving matter
kinetic energy
is associated with motion and including thermal energy
thermal energy
associated with random motion of atoms or molecules
heat
thermal energy in transfer from one object to another
potential energy
related to the location of structure of matter and including chemical energy possessed by a molecule due to its structure
chemical energy
the energy stored in the bonds of chemical compounds, which may be released during chemical reactions
first law of thermodynamics
conservation of energy, states that energy cannot be created or destroyed, only transferred
second law of thermodynamics
states that spontaneous processes increase the entropy of the universe
spontaneous process
requires no outside input of energy
entropy
measure of molecular disorder, or randomness