The Department of Biology is divided into Sections. Each Section coordinates the teaching of a Department's subject that corresponds to a specific field of Biological Science. Bodies of the Section are the General Assembly and the Director.

The General Assembly of the Section consists of Section's Members, the representatives of students (up to two), and by a representative of: a) Assistants & Research Associates, b) Special Laboratory Teaching Staff, c) Special Technical Laboratory Staff as well as non-doctoral Assistants, Scientists and Curators from those assigned to the Section.

The Section's General Assembly: a) elects the Director of the Section, b) coordinates the work of the Section under the decisions of the General Assembly of the Section, c) submits proposals to the General Assembly of the Section related to curriculum, d) allocates the funds of the Section in various teaching and research activities, e) elects the Directors of Laboratories of the Section, f) decides on the allocation of teaching to the Section's academic staff and on every issue that may concern the Section.

The Director of the Section convenes the Section's General Assembly, draws up the agenda, presides over the meetings and ensures the implementation of the General Assembly's decisions.

The Department of Biology currently includes the following Sections:

the Section of Animal & Human Physiology,

the Section of Biochemistry & Molecular Biology, which includes the Laboratory of Biochemistry,

the Section of Botany, which includes the Laboratory of General Botany,

the Section of Cell Biology & Biophysics,

the Section of Ecology & Systematics, which includes the Laboratory of Systematic Botany,

the Section of Genetics & Biotechnology, which includes the Laboratory of Biology and

the Section of Zoology - Marine Biology, which includes the Laboratory of Zoology.

In addition the Department of Biology is responsible for the operation of the Zoological Museum, the Botanical Museum and the Botanical Garden of the University of Athens.

Also, the Department of Biology effectively participates in the administration and assists to the proper functioning of the Botanical Garden of Julia & Alexander Diomidous.