BIOL 180 Quiz 2 Questions And Answers | Updated Study Solutions | 100% Correct Answers
Activation energy (Ea) - (ANSWER)minimum amount of energy required before collisions between the
reactants will give rise to products
Catalyst - (ANSWER)-enhances the rate of reaction by providing such a surface and effectively lowering
Ea
-proceed through the reaction unaltered
What are the 3 basic properties of catalysts? - (ANSWER)1. INCREASE reaction rates by LOWERING Ea
2. Form reversible complexes w/ substrate molecules
3. Change the RATE of reaction, NOT the POSITION of the equilibrium
Active site structure (KNOW WHAT THE STRUCTURE LOOKS LIKE ON SLIDE 11) - (ANSWER)-forms
enzymes to contain a characteristic cluster of amino acids
-3-D folding of protein where substrates bind, catalysis takes place
-groove/pocket that makes space from a specific substrate(s)
Substrate specificity - (ANSWER)enzymes are high in this b/c of the shape and chemistry of the active
site
Enzymes are characterized by their sensitivity to _______ and ______. - (ANSWER)temperature, pH
Enzyme sensitivities: Temperature (Low) - (ANSWER)rate INCREASES w/ temp as a result of INCREASED
kinetic activity of enzyme and substrate molecules
Enzyme sensitivities: Temperature (increases temp beyond a certain point) - (ANSWER)result in
DENATURATION of the enzyme molecule and LOSS of enzyme activity
What is the maximum optimal temperature of human enzymes? - (ANSWER)37oC (98.6oF) [normal body
temp]
Activation energy (Ea) - (ANSWER)minimum amount of energy required before collisions between the
reactants will give rise to products
Catalyst - (ANSWER)-enhances the rate of reaction by providing such a surface and effectively lowering
Ea
-proceed through the reaction unaltered
What are the 3 basic properties of catalysts? - (ANSWER)1. INCREASE reaction rates by LOWERING Ea
2. Form reversible complexes w/ substrate molecules
3. Change the RATE of reaction, NOT the POSITION of the equilibrium
Active site structure (KNOW WHAT THE STRUCTURE LOOKS LIKE ON SLIDE 11) - (ANSWER)-forms
enzymes to contain a characteristic cluster of amino acids
-3-D folding of protein where substrates bind, catalysis takes place
-groove/pocket that makes space from a specific substrate(s)
Substrate specificity - (ANSWER)enzymes are high in this b/c of the shape and chemistry of the active
site
Enzymes are characterized by their sensitivity to _______ and ______. - (ANSWER)temperature, pH
Enzyme sensitivities: Temperature (Low) - (ANSWER)rate INCREASES w/ temp as a result of INCREASED
kinetic activity of enzyme and substrate molecules
Enzyme sensitivities: Temperature (increases temp beyond a certain point) - (ANSWER)result in
DENATURATION of the enzyme molecule and LOSS of enzyme activity
What is the maximum optimal temperature of human enzymes? - (ANSWER)37oC (98.6oF) [normal body
temp]
