A bioassay is the measurement of the effect of a known or suspected biologically active substance on living material. Went used $Avena\ sative$(oat) coleoptiles in a technique called the $Avena$ coleoptile curvature test for auxin.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.