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Worksheetsbiocatalyst
Total questions: 7
Worksheet time: 2mins
All enzyme
are composed primarily of amino acids
can react rapidly at extremely high temperature due to high kinetic energy
need cofactors to work
work well at all pH
The line on the graph labeled A represents the:
activation energy with an enzyme
activation energy without an enzyme
free energy of the reactants
change in entropy and enthalpy
Why does the rate of an enzyme-catalysed reaction in human body increase as temperature is raised from 0–37 °C?
The enzyme and substrate molecules have more kinetic energy, so they collide more frequently.
The shape of the active site changes so that the substrate fits into it better.
Enzymes are denatured at low temperatures.
The shape of the substrate changes at high temperatures.
Which of the following is a prosthetic group?
Haem
Zinc
NAD+
Selenium
Competitive inhibition can be overcome by _______________
increase the concentration of substrate
reduce the concentration of enzyme
increase the concentration of enzyme
reduce the concentration of substrate
Give one similarities between competitive inhibitor and non-competitive inhibitor action
Both caused enzyme's conformation changed
The maximum rate of reaction is not reached
Reaction become slower
Rate of reaction can be increased by increasing the substrate concentration
