Subject: Biology
Credit units: 3
Offered: Either Term 1 or Term 2
Weekly hours: 3 Lecture hours and 3 Practicum/Lab hours
College: Arts and Science
Department: Biology


An introduction to light interactions with biological systems. The class will examine the evolution of biological pigments and photoreceptor systems. Emphasis will be placed on how plants and animals detect changes in their environment based on light cues and how they respond at the physiological level. Examples of topics which will be explored are the evolution of vision, photosynthetic energy production, circadian rhythms, phototoxicity and bioluminescence.

Prerequisite(s): BIOL 120; and 15 credit units of senior BIOL or permission of the instructor.
Note: Students with credit for BIOL 498: Photobiology may not take BIOL 440 for credit.

Upcoming class offerings

For full details about upcoming courses, refer to the class search tool or, if you are a current student, the registration channel in PAWS.


The syllabus is a public document that provides detail about a class, such as the schedule of activities, learning outcomes, and weighting of assignments and examinations.

Once an instructor has made their syllabus publicly available on USask’s Learning Management System, it will appear below. Please note that the examples provided below do not represent a complete set of current or previous syllabus material. Rather, they are presented solely for the purpose of indicating what may be required for a given class. Unless otherwise specifically stated on the content, the copyright for all materials in each course belongs to the instructor whose name is associated with that course. The syllabus is the intellectual property of instructors or the university.

For more information, visit the Academic Courses Policy , the Syllabus page for instructors , or for students your Academic Advising office.