Enzymes are also extremely specialized in their function.
As a result, many different enzymes are involved with the many different biological processes that occur within a plant. This herbicide-enzyme relationship is very specific and any chemical modification of the herbicide or enzyme can eliminate herbicidal activity. Back to previous document. The photosynthetic process occurs within a plant cell's chloroplasts. Certain herbicides can inhibit photosynthesis by binding to specific sites within the chloroplast.