
What does substrate mean? - Biology Stack Exchange
A substrate is an underlying substance or layer, or less strictly, the medium within or upon which an organism grows. For instance, you can have a filamentous fungus grow on a solid medium (e.g. on …
biochemistry - Why does an Enzyme-Substrate Complex have slightly …
3 In some books the graph of the change in free energy during an enzyme-catalysed reaction is depicted as shown below, where S = substrate, E = enzyme, P = product, and T* represents the transition …
Why doesn't enzyme reaction rate rise linearly with substrate ...
Jul 8, 2020 · Summary The reason that increasing the substrate concentration of an enzymic reaction does not increase the reaction rate beyond a certain maximum (Vmax) is that the reaction rate is …
Function of coenzymes: do they act as substrate shuttles?
Summary Co-enzyme is a general term employed early in the development of biochemistry and applied to non-protein components required for enzyme activity. Thus the term is not a chemical or …
biochemistry - What is the correct model for enzyme-substrate ...
This Wikibook shows both proposed models of enzyme-substrate complementarity, the Lock and Key model and the Induced Fit model. I've always been taught that the Induced Fit model is the proper one.
Similarity between substrate and inhibitor - Biology Stack Exchange
Oct 19, 2023 · I have this question - Q. Competitive inhibitor which binds to the enzyme (a) has structural similarity with the product (b) is chemically similar to the substrate (c) has physical …
molecular biology - Enzyme Concentration vs Reaction rate curve ...
Oct 8, 2024 · A plot of (initial) reaction rate vs enzyme concentration should be linear at all substrate concentrations, regardless of enzyme mechanism. Doubling the enzyme concentration should …
Understanding Enzyme saturation curve - Biology Stack Exchange
Jul 13, 2017 · At very high substrate concentration, the process will become diffusion limited. At that point adding additional substrate will no longer improve enzyme effectiveness, thus we get a curve …
What is the meaning behind Kcat / Km? - Biology Stack Exchange
Nov 19, 2016 · Km , the substrate concentration at which the reaction rate is half of V max Kcat, used to describe the limiting rate of any enzyme-catalyzed reaction at saturation.
biochemistry - Why is the formation of an enzyme-substrate complex ...
Jun 22, 2016 · In the section about the induced fit model for enzyme substrate binding, my MCAT textbook claims that "The substrate has induced a change in the shape of the enzyme. This …