Energy Production Flashcards
Biosynthesis
process of creating biologic compounds from smaller building blocks to support the body’s energy needs (ATP)
first law of thermodynamics
energy can not be created or destroyed but transforms from one form to another w/o being depleted
energy
the ability to perform work
energy of the system
potential energy + kinetic energy
three forms of biologic work
chemical (biosynthesis of molecules)
mechanical (muscle contraction: atp/cross bridging)
transport: transfer of substances among cells (Na+, K+)
second law of thermodynamics
the tendency of potential energy to degrade to kinetic energy of motion with a lower capacity for work (heat production during exercise)
oxidation reaction
transfer of oxygen atoms, hydrogen atoms, or electrons
-reducing agent: describes the substance donating or losing electrons as it oxidizes
reduction reaction
any process which the atoms in an element gain electrons
-oxidizing agent: the substance being reduced by gaining electrons
OIL RIG
OIL: oxidation involves loss
RIG: reduction involves gain
OX/REDUX
forms basis for bodys energy transfer process
- ex=transfer of electrons within the mitochondria
- conversion pyruvate to lactate and vice versa
- electron transport chain
Enzymes
help reduce the amount of energy needed to initiate the reaction
- affected by heat and pH
- increased temp during exercise positively impacts enzyme activity