Answer:
The correct answer is - shapes.
Explanation:
Proteins that act as catalysts by increasing the rate of chemical reactions that occur in any biochemical reaction are called enzymes. Enzymes bind to specific reactants and change them in certain ways that determine their functions. Enzymes show specificity to a particular type of reactants and particular reaction.
Long chains of networks of amino acids are building blocks for enzymes. Enzymes have a special cleft called active site on the surface. The substrate binds and interacts with this active site. The shape of the active site of enzymes determines the function of enzymes as it only binds with a specific substrate.
Thus, the correct answer would be- shapes.
