Which best explains enzyme specificity?

Which best explains enzyme specificity?

Specificity is a property of the enzyme and describes how restrictive the enzyme is in its choice of substrate; a completely specific enzyme would have only one substrate.

What best explains an enzyme’s specificity for a particular substrate molecule?

Based on the model, which of the following statements best explains an enzyme’s specificity for a particular substrate molecule? A molecule with negative charges interacts with positively charged side chains in the enzyme’s active site.

Are enzymes substrate specific?

Enzymes are specific to substrates as they have an active site which only allow certain substrates to bind to the active site. This is due to the shape of the active site and any other substrates cannot bind to the active site.

Which statements explains the effect of an inhibitor on an enzyme?

Which statement explains the effect of an inhibitor on an enzyme? A substrate will be able to bond with the enzyme. The enzyme will likely be attacked by immune cells. The enzyme will be unable to produce more enzymes.

What determine the specificity of enzymes?

Group specificity – the enzyme will act only on molecules that have specific functional groups, such as amino, phosphate and methyl groups. Linkage specificity – the enzyme will act on a particular type of chemical bond regardless of the rest of the molecular structure.

What is substrate specificity?

Definition. A feature of enzyme activity with regard to the kind of substrate reacting with an enzyme to yield a product. Supplement. In an enzyme activity, the substrate must bind with the enzyme to become a catalyst of a chemical reaction.

Which of the following statements best explains the reaction specificity of an enzyme?

Which of the following statements best helps explain the reaction specificity of an enzyme? The shape and charge of the substrates are compatible with the active site of the enzyme.

What is enzyme substrate specificity?

What determines substrate specificity?

The specificity is actually a molecular recognition mechanism and it operates through the structural and conformational complementarity between enzyme and substrate. Enzymes show different degrees of specificity towards their substrate.

What defines substrate specificity?

Is substrate influence substrate binding through allosteric mechanism?

This is because allosteric enzymes have multiple active sites. These multiple active sites exhibit the property of cooperativity, where the binding of one active site affects the affinity of other active sites on the enzyme. Allosteric Enzymes are influenced by substrate concentration.

What binds to the allosteric site of an enzyme?

Allosteric Inhibition and Activation In noncompetitive allosteric inhibition, inhibitor molecules bind to an enzyme at the allosteric site. Their binding induces a conformational change that reduces the affinity of the enzyme’s active site for its substrate.

How is substrate specificity related to enzyme specificity?

Substrate specificity. Substrate specificity is also called as absolute specificity, since here the specificity is very high. Enzymes showing substrate specificity are specific only to one substrate and one reaction.

How is sulfotransferase activity determined on hydrophobic substrates?

One of the earliest and simplest assays for determination of sulfotransferase activity with hydrophobic substrates is based on the quantitative extraction into chloroform of the ion pair formed between the organic sulfuric acid ester and methylene blue with subsequent determination of the absorbance of the ion pair at 651 nm.

Are there any substrates that are specific to MRP4?

Additional promising substrates specific for MRP4 are the acyclic nucleotide phosphonates (adefovir, cidofovir, and tenofovir) that are eliminated predominantly into the urine.

Which is part of an enzyme shows co-factor specificity?

Co-factor specificity Co-factors are non-protein part of enzyme required for the functioning of some enzymes. Enzyme which requires co-factors for their activity shows co-factor specificity. Only correct combination of substrate and co-factor allows enzymatic reaction.