Question

enzymes usually end in: -ase -heme -ose -cyte

Explanation:

Enzymes are biological catalysts. The naming convention for enzymes often follows a pattern where they end with the suffix "-ase". For example, amylase (breaks down starch), lipase (breaks down lipids). The suffix "-heme" is related to a prosthetic group in some proteins (like hemoglobin which has a heme group but hemoglobin is not an enzyme). The suffix "-ose" is used for naming sugars (e.g., glucose, fructose). The suffix "-cyte" is used for naming cells (e.g., erythrocyte - red blood cell).

Answer:

-ase