Enzymes alter the free-energy change of a reaction.
The process where an enzyme changes shape to hold a reactant is called:
Human enzymes' optimal temperature is around 38 degrees celsius, while thermophilic bacteria function best at 78 degrees celsius. If a human enzyme were exposed to 78 degrees celsius, it would:
The pH of a human stomach is very acidic. Pepsin is an enzyme located in the stomach. What pH is probably optimal for pepsin?
What can denature an enzyme?
What is NOT an example of a cofactor?
Molecule A is a substrate that binds to Enzyme C. Molecule B inhibits Enzyme C, but only when more of Molecule B than Molecule A is added into a solution. What type of inhibitor is Molecule B?
Competitive inhibitors are:
As time goes on in a specific reaction, the concentration of product increases steadily, then levels off in a flat horizontal line. What has happened by the later period of the reaction?
Allosteric site is a synonym for active site.
Enzyme regulators bound to allosteric sites can decrease OR increase enzyme activity.
Substrate X uses Enzyme Z to be transformed into Product Y. If Enzyme Z is removed from the system,
Feedback inhibition is when the end product of an enzymatic pathway binds to an allosteric site on the enzyme and effectively switches off the reaction. Does this increase or decrease energy efficiency in the cell?
Poisons typically bind to the active sites of enzymes, slowing biological reactions. What type of inhibitors are most poisons?
A graph shows two free energy over time curves, both of which go up and then down. Curve A has a higher peak than Curve B. Which curve represents the reaction with an enzyme added and why?
What types of interactions are more likely to be used to hold a substrate in the active site of an enzyme?