HUN 1201 Exam 2: Metabolism
metabolism - ANS-the sum of all chemical reactions that occur in the body. goal is to
produce energy, chemicals, and structures which are all vital for life
catabolism - ANS-type of metabolism: the breakdown of a molecule into smaller units
(releases energy)
anabolism - ANS-type of metabolism: the building up of a molecule from smaller units
(requires energy)
human energy metabolism - ANS-the process of extracting energy from food to fuel the
body
Adenosine Tri-Phosphate - ANS-(ATP) is an easy to use molecule which is high-energy
to which the body uses to power activities
phosphate, glycolytic, and oxidative systems - ANS-the 3 energy systems that produce
ATP
glucose - ANS-it is converted to acetyl CoA through the Glycolysis pathway
fatty acids - ANS-they are converted to acetyl CoA through the Beta Oxidation pathway
Amino Acids - ANS-they are converted to acetyl CoA through the Deamination pathway
anaerobic metabolism - ANS-a short-term energy system (without oxygen) which
produces ATP very rapidly but uses only glucose as a fuel. The amount of glucose is
limited. It creates lactic acid
phosphogen system - ANS-(anaerobic) a fast energy system for a short duration (0-10
sec) which takes place in the cytoplasm and breaks down phosphocreatine (PC) for
energy
phosphocreatine - ANS-(PC) a compound stored in muscle that can be quickly broken
down to make ATP
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