In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.
Assertion : Enzymes have active sites that hold substrate molecule for a chemical reaction.
Reason : Drugs compete with natural substrate by attaching covanetly to the active site of enzyme.
Answer & explanation
Correct answer: option 4
Drugs compete with natural substrate by attaching by weak bonds ( such as ionic bonding, H-bonding, van der Waals interaction, etc.) to the active site of the enzyme.