Which option correctly replaces the letters X and Y?
A(n) X will bind to the Y of an enzyme so that the chemical reaction can occur.
X: active site
Y: reactant
X: active site, , Y: reactant
X: substrate
Y: active site
X: substrate, , Y: active site
X: substrate
Y: product
X: substrate, , Y: product
X: product
Y: reactant
X: product, , Y: reactant
thanks in advance!
omg i meant to put biology not math
smh
To determine the correct option, we need to understand the concepts of enzymes, substrates, active sites, and reactants/products.
Enzymes are biological catalysts that facilitate chemical reactions in living organisms. They often have a specific region called the active site where substrates bind and undergo a reaction to form products.
In this question, we are given the statement: "A(n) X will bind to the Y of an enzyme so that the chemical reaction can occur." We need to replace X and Y with the correct terms.
Option A:
X: active site
Y: reactant
This option suggests that the active site binds to the reactant. While enzymes do bind to reactants, the active site refers to the region on the enzyme itself rather than the reactant. Therefore, option A is incorrect.
Option B:
X: substrate
Y: active site
This option correctly replaces X with "substrate" and Y with "active site." Enzymes typically bind to substrates at their active sites, facilitating the chemical reaction. Therefore, option B is the correct answer.
Option C:
X: substrate
Y: product
This option suggests that the substrate binds to the product, which is incorrect. Enzymes bind to the substrate, and the reaction between the substrate(s) leads to the formation of product(s). Therefore, option C is incorrect.
Option D:
X: product
Y: reactant
This option suggests that the product binds to the reactant, which is also incorrect. Enzymes do not typically bind to products. They facilitate the conversion of reactants into products. Therefore, option D is incorrect.
In conclusion, the correct option is:
X: substrate
Y: active site
X: substrate, Y: active site