NotesFAQContact Us
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ863718
Record Type: Journal
Publication Date: 2009-Jan
Pages: 4
Abstractor: ERIC
Reference Count: 5
ISSN: ISSN-0002-7685
An Ode to PSII
Firooznia, Fardad
American Biology Teacher, v71 n1 p27-30 Jan 2009
Many instructors of biology have noted the usefulness of hands-on exercises that require building and using a model or role-playing in helping students to visualize and understand abstract concepts better. In the author's introductory courses, he has resorted to role-playing and biological "plays" to help students visualize more abstract subjects in a manner that is easier for most students to understand. This article describes an exercise in which students trace the photochemical steps of photosynthesis around Photosystem II (PSII). Most introductory biology and plant biology texts provide beautiful diagrams showing these steps. However, these diagrams are just the first step in the author's classroom, where the students use reading, seeing, hearing, and physical participation in activities such as that described in this article all as part of the learning process. In addition, the author has chosen to include some of the physical detail about the process that is typically left out of the introductory texts that he considers important to understanding the process better. An example is the role of the oxygen evolving complex (OEC) and its interaction with two water molecules, even though the actual mechanism through which it acts is still not well understood. Moreover, the author wrote the Ode to PSII to both help his students learn what happens around PSII that leads to the splitting of water, and to make the whole exercise more interesting for them. (Contains 1 table.)
National Association of Biology Teachers. 12030 Sunrise Valley Drive # 110, Reston, VA 20191. Tel: 800-406-0775; Tel: 703-264-9696; Fax: 703-264-7778; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A