There are various reference books for 1st PUC Biology or Class 11 Biology. These reference books are updated regularly every year in order to accommodate the changes and modifications to the syllabus. Recently the syllabus of Biology Class 11 has been reduced. Therefore, the students should choose the reference books based on the revised syllabus. Some of the commonly used reference books for 1st PUC Biology include Class Book Of Biology For 1st PUC: Student Illuminator by M Subramanya Kumbar, Ge Ravindranath (Author), Jeevith Publications (Publisher); Biology 1 Puc 2021-22 For Examination Handbook Spr 5 Star Series by Rakesh Verma, Shruthi Nagaraju (Author), S P R Publication (Publisher), and Biology 1 PUC by Na (Author), Department Of Pre-University Educat (Publisher), among others.