Exploring the Role of Enzymes in Chemical Reactions

Enzymes are proteins that facilitate chemical reactions in cells by binding to substrates at their active sites, forming an enzyme-substrate complex. This process weakens chemical bonds, leading to the formation of new products. Once the reaction is complete, the product is released, and the enzyme is free to catalyze further reactions.

What is the primary role of enzymes within cells?

• To transport substances across the cell membrane

• To act as a physical barrier for cell protection

• To initiate and speed up chemical reactions

• To provide energy directly to cells

Where do substrates bind on an enzyme?

• At the enzyme's inactive site

• On the enzyme's surface randomly

• At the active site

• At the enzyme's core

What forms when substrates bind to an enzyme's active site?

• An enzyme-substrate complex

• An active site complex

• A product complex

• A substrate complex

What happens to the substrates' chemical bonds during the reaction?

• They begin to weaken

• They strengthen

• They remain unchanged

• They break immediately

What is formed as a result of the chemical reactions at the active site?

• A different molecule

• A new enzyme

• A duplicate substrate

• An identical active site

What happens to the enzyme after the reaction is complete?

• It is consumed

• It disintegrates

• It becomes inactive

• It returns to its original state