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  1. 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 …

  2. 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 …

  3. 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 …

  4. 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 …

  5. 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.

  6. 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 …

  7. 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 …

  8. 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 …

  9. 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.

  10. 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 …