in Cell envelope, Cell membrane, Cell wall by

1 Answer

0 votes
by
The adjacent pits of the plant cell wall separated by the middle lamella and the primary cell wall together form the pit membrane. It may have a thickening called Torus which is formed by circular deposition of microfibrils.
Biology Questions and Answers for Grade 10, Grade 11 and Grade 12 students, Junior and Senior High Schools, Junior Colleges, Undergraduate biology programs and Medical Entrance exams.
...