This study aims to determine students' learning difficulties in the biology learning process of class X SMA PGRI Pekanbaru. This type of research is a descriptive study. The research was conducted at SMA PGRI Pekanbaru from November to December 2019. The sampling technique used the total sampling technique so that the sample in the study, namely class X IPA SMA PGRI Pekanbaru were 30 students a…