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Chapter 8
Enzymes and Metabolism
20
Biology
12th Grade
10/20/2009

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Cards

Term
big to small, polymers to monomers
Definition
catabolism
Term
metabolism
Definition
totality of an organism's chemical reactions
Term
small to big, monomers to polymers
Definition
anabolism
Term
energy needed for...
Definition
movement, cellular respiration, mitosis, enzyme reaction
Term
energy is stored in..
Definition
bonds! it is released as heat, chemical energy and waste. electrons realeased when bonds are broken (oxidation)
Term
G=?
Definition

Gibbs free energy (work energy)

 

Term
H=?
Definition
enthalpy (energy content)
Term
S=?
Definition
entropy (energy dispersion "disorder")
Term
T=?
Definition
Temperature (K)
Term
1st law of thermodynamics
Definition
energy is transformed, it is neither created or destoryed
Term
reactants need energy to bond, needs EA
Definition
non spontaneous reaction
Term
2nd law of thermodynamics
Definition
energy transformation increases entropy of the universe. 
Term
will eventually breakdown, releases energy and breaks bonds
Definition
spontaeous reaction
Term
ΔG<O
Definition
spontaneous, low ΔG(-)
Term
ΔG>0
Definition
non spontaneous, high ΔG(+)
Term
Enzymes as catalysts..
Definition

-ase suffix

increases rate of reaction

substrate specific

lower EA

Term
induced fit
Definition
substrate and active site-enzyme and active site must change shape so the reaction can take place
Term
The active site...
Definition

unites reactants and stresses bonds

bonds by Van Der Waals forces

R groups and substrate functional groups interact

Term
coupled reactions
Definition

endergonic and exergonic working together

 

C6H12O+ 6O2 -->6H2O + 6CO2 + 38ATP

Term
Allosteric
Definition

compound that changes shape of enzyme

if it changes in a negative way, enzyme can't function

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