Glyphosate is an example of a:

Glyphosate is an example of a:

• A. Non selective herbicide
• B. EPSP inhibitor
• C. Selective herbicide when used with Roundup Ready crops
• D. All of the above

Answer: (D)

Glyphosate works by blocking an enzyme called EPSP synthase in the shikimate pathway, which plants use to make essential aromatic amino acids. Because this pathway is present in most plants, glyphosate acts as a broad-spectrum, non-selective herbicide that kills a wide range of species. However, crops engineered to be Roundup Ready have a glyphosate-resistant form of EPSP synthase, so they can tolerate applications of glyphosate. In that cropping system, the herbicide targets weeds while the crops survive, making it selective in that context. So glyphosate is non-selective in general, it inhibits EPSP synthase, and it can be selective when used with Roundup Ready crops. All of the above statements are true.

Glyphosate works by blocking an enzyme called EPSP synthase in the shikimate pathway, which plants use to make essential aromatic amino acids. Because this pathway is present in most plants, glyphosate acts as a broad-spectrum, non-selective herbicide that kills a wide range of species.

However, crops engineered to be Roundup Ready have a glyphosate-resistant form of EPSP synthase, so they can tolerate applications of glyphosate. In that cropping system, the herbicide targets weeds while the crops survive, making it selective in that context.

So glyphosate is non-selective in general, it inhibits EPSP synthase, and it can be selective when used with Roundup Ready crops. All of the above statements are true.