Undergraduate
Welcome!
We offer 45 courses covering topics such as endocrine physiology, introductory virology, cell adhesion and migration, bioinformatics methods and plant-microorganism interactions. Our foundation courses in cell, molecular and developmental biology, and physiology provide fundamental concepts in each area along with essential skills in modern laboratory techniques.

The Department of Cell and Systems Biology offers two core programs: Animal Physiology (Major) and Cell & Molecular Biology (Specialist and Major each with the option of Disciplinary Focuses).
International Experience
More than crossing borders and visiting other countries.
CSB is working with the Centre for International Experience (CIE) to support our students in doing CSB research abroad and/or to do an exchange year. If you are interested, please visit the CIE website for information about the entire program.
What’s Happening at CSB
News
March 16, 2026
Falling Walls Lab Toronto winner presents Breaking the Wall of Surgical Automation in Berlin
The annual Falling Walls Foundation Science Summit in Berlin is an unforgettable experience that combines scientific excellence, global perspectives…
February 28, 2026
Many pathways to an exciting career revealed at the CSB/HMB backpack to Briefcase event
Thank you to all the alumni who answered the call to share their career paths and job advice at our "backpack 2 Briefcase" event with HMB and CSB…
February 9, 2026
Secrets of gene regulation during development probed with new tools by Professor Colette L. Picard
Professor Colette L. Picard is bringing her innovative skills in single cell genomics to the Department of Cell & Systems Biology (CSB) as a new…
Next Event
Good Friday - University closed; no classes or final exams - April 3, 2026 - 12:00 am
Description
Upcoming Events
- Good Friday - University closed; no classes or final exams - April 3, 2026 - 12:00 am
- Last day for most regularly scheduled classes in Winter (S) and Fall-Winter (Y) courses. - April 9, 2026 - 12:00 am
- Deadline to apply to limited programs during the first request period - April 24, 2026 - 10:00 am
- Last day to drop F courses - June 1, 2026 - 9:00 am
- Classes end in F and Y courses - June 15, 2026 - 9:00 am
- Last day to add or remove a CR/NCR option in F courses - June 16, 2026 - 9:00 am
- Official last day of classes - June 16, 2026 - 9:00 am
- Final exam period for Summer (F) courses - June 18, 2026 - June 24, 2026 - 12:00 am
- First day to request Fall 2026 graduation - June 25, 2026 - 8:30 am
- Classes for Summer (begin in S) courses begin and classes for Summer (Y) courses resume - July 2, 2026 - 8:00 am
- Last day to enrol in limited programs during the first request period - July 3, 2026 - 8:00 am
- First day to enrol in limited programs during the second request period - July 4, 2026 - 7:00 am
- Last day to enrol in S courses - July 8, 2026 - 8:00 am
- Last day to drop S courses - July 29, 2026 - 7:00 am
- Last day to drop Y courses - July 30, 2026 - 7:00 am
- Civic holiday - University closed; no classes - August 3, 2026 - 8:00 am
- Classes end in S and Y courses - August 12, 2026 - 7:00 am
- Final exams in S and Y courses including Regular Deferred exams. - August 15, 2026 - August 22, 2026 - 8:00 am
- Classes for Fall (F) and Fall-Winter (Y) courses begin - September 8, 2026 - 7:00 am
- Waitlists for Fall (F) and Fall-Winter (Y) courses close at end of day - September 17, 2026 - 8:00 am

