Which Is an Example of an Enzyme Using Substrate Orientation

question 221

Multiple Choice

Which is an example of an enzyme using substrate orientation as a mechanism for lowering the activation energy of a reaction?

• A) Aligning the substrate atoms so they are brought into proximity with each other, favoring the chemical reaction
• B) Altering the hydrophobicity of a substrate (e.g., making a hydrophobic molecule hydrophilic)
• C) Altering the shape of the enzyme to favor expulsion of the product
• D) Aligning two different substrates such that their reactive atoms are held as far apart as possible
• E) Chemically cleaving the substrate so that the small substrate fragments can enter solution more easily