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What substance is needed to convert an inactive form of an enzyme to an active form?
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What is necessary to convert inactive prothrombin to active thrombin?
To convert inactive prothrombin to active thrombin, it is necessary to cleave prothrombin through the action of the enzyme prothrombinase. This complex, primarily composed of factor Xa and factor Va, operates in the presence of calcium ions and phospholipids. The cleavage results in the formation of active thrombin, which plays a crucial role in the coagulation cascade by converting fibrinogen to fibrin and activating additional coagulation factors.
What is the inactive from of the enzyme pepsin?
The inactive form of pepsin is called pepsinogen.
What happens when an enzyme loses it's shape?
Its molecular shape is altered so the substrate cannot fit to its active site
What is an active site and where is it located?
A region on an enzyme that binds to a protein or other substance during a reaction
What is the substance an enzyme act upon called?
the substance that an enzyme acts upon is subtrate
What is a co-enzyme?
A nonprotein compound that combines with an inactive enzyme to form an active enzyme system.
Is a coenzyme?
A nonprotein compound that combines with an inactive enzyme to form an active enzyme system.
What is an enzyme called if it is inactive until it reaches its active site called?
enzymes are proteins zymogen
What is necessary to convert inactive prothrombin to active thrombin?
To convert inactive prothrombin to active thrombin, it is necessary to cleave prothrombin through the action of the enzyme prothrombinase. This complex, primarily composed of factor Xa and factor Va, operates in the presence of calcium ions and phospholipids. The cleavage results in the formation of active thrombin, which plays a crucial role in the coagulation cascade by converting fibrinogen to fibrin and activating additional coagulation factors.
An allosteric enzyme made up of protein subunits alternates between active and inactive forms?
true
What is the inactive from of the enzyme pepsin?
The inactive form of pepsin is called pepsinogen.
What is the name of the inactive form of a protein splitting enzyme in the stomach?
The inactive form of a protein splitting enzyme in the stomach is called pepsinogen. It gets converted to its active form, pepsin, when exposed to the acidic environment of the stomach.
Changing the pH in an enzyme will?
Changing the pH in the environment that an enzyme works in can change how active it will be. Most will be active in a narrow range. Pepsin, a stomach enzyme, will only work at very acid pHs and will become inactive at higher pH than 2.
What happens when an enzyme loses it's shape?
Its molecular shape is altered so the substrate cannot fit to its active site
What is apoenzyme?
Apoenzyme is the protein portion of an enzyme, which is inactive without its cofactor or coenzyme. The binding of the cofactor or coenzyme to the apoenzyme forms the active enzyme, allowing it to catalyze a specific biochemical reaction.
What is a substance that lowers the rate at which enzyme catalyzes a reaction but doesn't bind to the active site?
A noncompetitive inhibitor is a substance that can bind to the enzyme at a location other than the active site, altering the enzyme's shape and reducing its activity. This type of inhibition does not compete with the substrate for binding to the enzyme.
What is an active site and where is it located?
A region on an enzyme that binds to a protein or other substance during a reaction
