- What is a ternary complex MCAT?
- What does kcat stand for?
- Which one of the following enzymes is containing molybdenum?
- What is an intermediate in a consecutive reaction?
- What is a saturated enzyme?
- What is the biggest difference between a ping pong mechanism and either an ordered mechanism or random mechanism?
- What is an ordered mechanism?
- What are sequential reactions?
- What two factors affect the rate of enzyme action?
- Does temperature affect enzymatic activity?
- What is Bisubstrate reaction?
- What is the initial rate of the enzyme reaction?
- What is parallel reaction?
What is a ternary complex MCAT?
A ternary complex is a protein complex containing three different molecules that are bound together..
What does kcat stand for?
the turnover numberKcat is the turnover number — the number of substrate molecule each enzyme site converts to product per unit time. If you know the concentration of enzyme sites, you can fit Kcat instead of Vmax when analyzing a substrate vs. velocity curve.
Which one of the following enzymes is containing molybdenum?
The group of enzymes collectively and descriptively known as the molybdenum iron-sulphur flavin hydroxylases includes aldehyde oxidase, xanthine oxidase, and xanthine dehydrogenase. As a group and as individuals, they are among the most unique of proteins.
What is an intermediate in a consecutive reaction?
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise, that is they take more than one elementary step to complete.
What is a saturated enzyme?
What is meant by saturation of the enzyme? Saturation of the enzyme means that all of the E is bound to S and no free E exists. The enzyme has bound to as much substrate as possible. This situation occurs at high levels of S.
What is the biggest difference between a ping pong mechanism and either an ordered mechanism or random mechanism?
Given information: Ping-pong mechanism differs from the other two mechanisms. In ordered reaction, substrates of the reaction bind to the enzyme in a specific order and, in random reaction, substrates bind with the enzyme randomly, but, in both the mechanisms, the enzyme–substrate complex of b…
What is an ordered mechanism?
a scheme for substrate binding and product release for multisubstrate enzymes; for a two-substrate two-product enzyme with an ordered mechanism, one particular substrate has to first bind to the enzyme, followed by the other substrate; chemistry then occurs, and products are formed and are released from the enzyme in a …
What are sequential reactions?
Sequential reactions consist of linked reactions in which the product of the first reaction becomes the substrate of a second reaction. Sequential reactions occur in industrially important processes, such as the chlorination of methane.
What two factors affect the rate of enzyme action?
Several factors affect the rate at which enzymatic reactions proceed – temperature, pH, enzyme concentration, substrate concentration, and the presence of any inhibitors or activators.
Does temperature affect enzymatic activity?
Like most chemical reactions, the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree Centigrade rise in temperature will increase the activity of most enzymes by 50 to 100%.
What is Bisubstrate reaction?
Bisubstrate Reactions When an enzyme catalyzing a reaction involving two substrates and yielding two products it is called Bisubstrate Reactions.
What is the initial rate of the enzyme reaction?
The initial rate of reaction is the gradient of the straight line portion of the plot, shown by the dotted red line. The initial rate of reaction is when concentrations of enzyme and substrate are known, so this allows fair comparison if you then change initial concentrations of enzymes or substrate.
What is parallel reaction?
The reactions in which a substance reacts or decomposes in more than one way are called parallel or side reactions. If we assume that both of them are first order, we get.