Microbiology Courses for Undergraduates

Microbiology majors must have a minimum of 36 credits in upper division microbiology with a 2.0 minimum GPA.  All students must take MB 302, 303, 310, 311, 312 and MB 490.

After completing these required courses, 20 credits of 400-level microbiology classes are required and two credits must be from a 400-level laboratory class.  BOT 350 (Introduction to Plant Pathology) and BOT 461 (Mycology) count as 400-level MB classes.  Research (MB 401), Thesis (MB 403), Reading and Conference (MB 405), and Internship (MB 410) can count for 3 credits; and Teaching Assistantship (MB 406) can be used for 3 additional credits.  Speak with an advisor prior to registering for these courses.  Any additional credits in these areas will count as general electives.  All required courses must be taken for a grade.  See your advisor for further details.

Major Four-Year Plan:  This link provides a one-page printable summary of a sample Four-Year Plan.  

Microbiology Minor Requirements

All Microbiology minors are required to take MB 302, MB 303, MB 310, MB 311 and MB 312.  The remaining 13 required hours must come from 400-level microbiology courses, including one 400-level laboratory course.  Not more than 3 of these credit hours can come from MB 401.  Other blanket courses cannot be used to satisfy the minor requirement.

University Baccalaureate Core Requirements

The Baccalaureate Core (Bacc Core) Curriculum represents what the OSU faculty believes is the foundation for students' further understanding of the modern world. The Bacc Core requires students to think critically and creatively, and to synthesize ideas and information when evaluating major societal issues and draws from science and the humanities.  More importantly, the Bacc Core promotes understanding of relationships among disciplines in order to increase students' capacities as ethical citizens. 

Microbiology Courses for Undergraduates (*=May be taken concurrently; Prereqs=Prerequisites)

MB 110.  ORIENTATION TO MICROBIOLOGY (1 cr, F).  Introduction of incoming microbiology students to college life with an emphasis on faculties, facilities, services, and curricula in microbiology.  Exposure to career opportunities in microbiology. Course Syllabus

MB 201.  LABORATORY SKILLS.  (3 cr, Sp, Graded P/N).  These credits are designed for students who are doing experiential learning in a research laboratory on campus and performing basic laboratory tasks that are not elevated to the level of an independent research project.

MB 230, MB 230e.  INTRODUCTORY MICROBIOLOGY.  (4 cr, F,W,Sp,Su).  Microbiology as it affects our everyday lives.  The impact of microorganisms on health, food/water sanitation, environment, industry, and genetic engineering. Includes laboratory session.  Course Syllabus MB 230Course Syllabus MB 230 Lab

MB 255, MB 255e ALLIED HEALTH MICROBIOLOGY.  (4 cr, Sp).  General properties of cellular microbes and viruses, microbial biochemistry and genetics, pathogenesis and disease, immunity, and microbial infections.  Lecture and lab emphasis is on medical microbiology, infectious diseases, and public health.  Not intended for biological sciences majors.  Lec/Lab.  CROSSLISTED as BHS 255.  Course Syllabus

MB 290.  SUCCESS IN MICROBIOLOGY. (1 cr, Sp).  Science skills, science literacy, ethics, and professional development to build a successful career in Microbiology. Learn the process of research, access and analyze primary literature, evaluate user-generated science content, practice professional skills, and identify and plan for experience-building opportunities such as jobs, research and internships. Sophomore standing or higher.

MB 302, MB 302e. GENERAL MICROBIOLOGY.  (3 cr, F,W,Sp,Su).  Emphasis on cytology, physiology, virology, growth and control of microorganisms with coverage of the role of microorganisms in nature, in disease, and as useful tools.  Course Syllabus. Course Syllabus ecampus

MB 303.  GENERAL MICROBIOLOGY LABORATORY (2 cr, F,W,Sp,Su).  Development of laboratory techniques; exercises designed to reinforce concepts covered in MB 302. (Prereqs: MB 302)  Course Syllabus

MB 310.  BACTERIAL MOLECULAR GENETICS (3 cr, W).  Introductory concepts of bacterial molecular genetics.  Topics include DNA replication, mutation, DNA repair, DNA recombination, transposons, bacteriophages, genetic manipulation, and gene regulation.  (Prereqs:  MB 302 and BI 314, 314H or BB 314; and BB 450 or 490; and BB 451* or 491*). Course Syllabus

MB 311.  MOLECULAR MICROBIOLOGY LAB:  A WRITING INTENSIVE COURSE (3 cr, W,Sp).  Scientific writing, laboratory notebook composition, experimental design, and laboratory experiments in bacterial molecular biology.  (Prereqs:  MB 303 or 303H and MB 310.*)  Course Syllabus  Please refer to the Scientific Writing for Microbiology Majors.

MB 312.  BACTERIAL PHYSIOLOGY AND METABOLISM (3 cr, Sp).  Molecular structure and function, macromolecular assembly, energy production and use, and cellular growth.  (Prereqs:  MB 310 and BB 451.)  Course Syllabus

MB 314.  AQUATIC MICROBIOLOGY (3 cr, Sp).  Microbial processes in freshwater and marine environments shape much of the world around us.  Covers the fauna and processes pertinent to aquatic environments and using an ecosystem approach, tracks microbiology from the headwaters to the open ocean.  (Prereqs:  CH 231, 231H or 12; CH 232, 232H, or 122; CH 233, 233H or 123.) Course Syllabus

MB 330, MB 330e.  DISEASE AND SOCIETY (3 cr).  Infectious disease has many effects on the development of society, and likewise, human interactions affect the development of disease.  The course examines these interactions with a focus on the role of race, class, and economic status in the development of epidemics. (Cascade Campus, F; eCampus, Su).  Course Syllabus:  Detailed VersionCourse Syllabus

MB 340e.  HUMAN VIROLOGY (3 cr, W).  Properties of viruses, their biology, pathogenesis and concern to society. Emphasis on viruses causing human disease. CROSSLISTED as BHS 340. (Prereqs: BI 204, 205; 206 or BI 211, 212 and 213.)  Ecampus.  Course Syllabus

MB 385.  EMERGING INFECTIOUS DISEASE AND EPIDEMICS: A WRITING INTENSIVE COURSE (3 cr, every other year).  Emerging and reemerging infectious disease is a contemporary global issue of great concern.  The course covers germ theory, disease history and ecology, microbial pathogenesis and the immune response, historic plagues, and the biological, environmental, population and social changes that contribute to disease emergence.  (Prereqs BI 211 or 211H; and BI 212 or 212H; and BI 213 or 213H.)  Course Syllabus

MB 416.  IMMUNOLOGY (3 cr, F).  Basic theory and applications of immunochemistry, immunogenetics, and cellular immunology.  Examination of immunologically related diseases.  (Prereqs:  BB 450 or 490.)  Course Syllabus.

MB 417.  IMMUNOLOGY LABORATORY (2 cr, F).  Laboratory on the applications of current immunological techniques.  (Prereqs:  MB 303 or 303H; and MB 416*.) Course Syllabus.

MB 420.  MICROBIAL GENOMES, BIOGEOCHEMISTRY, AND DIVERSITY (3 cr, F).  A survey of microbial diversity from the earliest lifeforms to the modern role of bacteria and archaea in global biogeochemical cycles.  Topics covered include molecular evolution, microbial genomics, biochemical diversity and metabolic pathways that adapt cells to extreme environments.  Particular emphasis is placed on marine systems, from photosynthesis in surface water to life in the ocean crust.  (Prereq:  BB 451.) Course Syllabus

MB 422 AQUATIC MICROBIOLOGY LABORATORY (2 cr, Sp)  This field to lab course focuses on the microbial ecology of freshwater and marine systems as a foundation for discovery and learning.  (Prereqs:  MB 303 and 314.) Course Syllabus.

MB 430.  BACTERIAL PATHOGENESIS (3 cr, Sp).  Bacteria pathogenic for humans, emphasizing the structural, physiological and genetic mechanisms of pathogenesis.  Role of the immune system in pathogenesis and protection.  (Prereqs:  MB 302 and 310; and BB 451 or 491.)  Course Syllabus

MB 434.  VIROLOGY (3 cr, W).  Properties of viruses, their biology and pathogenesis.  Emphasis on viruses causing human disease.  (Prereqs:  BB 450 or 450H and BB 451 or 451H/or BB 490,491, and 492.)  Course Syllabus

MB 435.  PATHOGENIC MICROBES LABORATORY (2 cr, Sp).  Laboratory experiments to illustrate concepts presented in MB 430 and/or MB 434, focusing on pathogenic microorganisms.  (Prereqs: MB 303 or 303H and MB 302; and MB 430* or 434*.)  Course Syllabus.

MB 436.  THE HUMAN MICROBIOME.  (3 cr, Sp). Examines the biodiversity, function and medical importance of the communities of microorganisms that inhabit the human body.  A diverse array of topics will be discussed, including how the human microbiome is studied, case studies of specific aspects of the human microbiome, and emerging theories of how the  microbiome influences human health.  (Prereqs:  BI 314, 314H, MB 302.)  Course Syllabus

MB 440.  FOOD MICROBIOLOGY (3 cr, W).  Role of microorganisms in food spoilage, infection, and intoxication; also basic principles in contamination control and germicidal treatment during processing, preparing, and distributing food for consumption.  (Prereq:  MB 302.)  Course Syllabus

MB 441.  FOOD MICROBIOLOGY LABORATORY (2 cr, W).  Laboratory techniques to accompany MB 440. (Prereqs:  MB 303 or 303H and MB 440*.) Course Syllabus

MB 448.  MICROBIAL ECOLOGY (3 cr, W).  A comparison of soil sediments and freshwater as microbial habitats.  Discussion of the role of microorganisms in nutrient cycles, effects of microbial activity on plant and animal life. (MB 302.)  Course Syllabus

MB 456.  MICROBIAL GENETICS AND BIOTECHNOLOGY (3 cr, W).  General biology of natural, genetically engineered, and composite plasmids.  Major topics include extrachromosomal DNA replication, plasmid transmission, insertion elements, transposons, gene expression and recombinant DNA vectors.  Biotechnological applications and molecular genetic tools are emphasized.  Course Syllabus

MB 479.  FERMENTATION MICROBIOLOGY (3 cr, Sp).  An introduction to industrial microbiology with a focus on the physiology of fermentation and use of microorganisms for the production of food ingredients, fermented foods, and beverages.  (Prereqs:  BI 212 or 212H and CH 331 and 332; and BB 350 or 450 and MB 302.)  Course Syllabus

MB 480, MB 480e.  GENERAL PARASITOLOGY (3 cr, Sp; eCampus 2019).  Introduction to parasitology.  The course emphasizes medical parasitology, but will cover a broad overview of parasitology, covering important groups and host/parasite relationships among all taxa from invertebrates to vertebrates, including mammals.  (Prereq:  MB 302.)  Course Syllabus

MB 490 MICROBIOLOGY CAPSTONE EXPERIENCE (2 cr, F).  Capstone experience is for microbiology students to practice professional skills necessary to sustain a career in science.  Students will work in teams to analyze research data and communicate this analysis, in addition to exploring career opportunities and learning how to successfully compete for jobs.  Course Syllabus.

MB 491 FISH DISEASES IN CONSERVATION BIOLOGY AND AQUACULTURE (3 cr, Sp).  Introduction to diseases of fish including pathogens important to aquaculture and ornamental industries as well as to wild fish populations and conservation programs.  Includes a lab session. (Prereq:  9 credits upper division fisheries or biology.)  Course Syllabus.

MB 496.  FISH DISEASES IN CONSERVATION BIOLOGY AND AQUACULTURE LAB (2 cr, Sp).  This laboratory complements lectures in FW/MB 491/591, with students learning basic necropsy techniques; identification of bacterial, viral and metazoan pathogens; and molecular identification methods.  CROSSLISTED as FW/496/596.  (Prereqs:  MB 303 or other upper-division laboratory course.)  Course Syllabus

MB 499.  ART OF THE MICROBIOME (3 cr, W).  This is an interdisciplinary course that employs image and sound-based inquiry to explore microbiomes of humans and environments.  The course format will be lectures interspersed with hands on studio time to illustrate the scientific concepts explained uising different artist media.  (Prereq:  BI 102.)


MB 299.  SPECIAL TOPICS. (1-16 cr).  May be repeated for credit (16) when topic varies.

MB 399.  SPECIAL TOPICS.  (1-16 cr).

MB 401.  RESEARCH (1-16 cr.).  Used when conducting a project in a research laboratory.  This course may be repeated for a maximum of 16 credits, but no more than 3 credits may be used to satisfy the microbiology major requirement for twenty 400-level MB credits.

MB 403.  THESIS (1-16 cr). This course may be repeated for a maximum of 16 credits, but no more than 3 credits may be used to satisfy the microbiology major requirement for twenty 400-level MB credits.

MB 405.  READING AND CONFERENCE (1-16).  Conference:  Instruction in microbiology.  This course may be repeated for a maximum of 16 credits, but no more than 3 credits may be used to satisfy the microbiology major requirement for twenty 400-level MB credits.

MB 406SPECIAL PROJECTS (16 cr).  Used when serving as a Teaching Assistant.  This course may be repeated for a maximum of 16 credits, but no more than 3 credits may be used to satisfy the microbiology major requirement for twenty 400-level MB credits.

MB 407.  SEMINAR (1-16 credits).  This course may be repeated for a maximum of 16 credits.  Graded P/N.

MB 410. OCCUPATIONAL INTERNSHIP (1-10 cr).  Supervised work experience at selected cooperating institutions, agencies, laboratories, clinics or companies.  This course may be repeated for a maximum of 10 credits, but no more than 3 credits may be used to satisfy the microbiology major requirement for twenty 400-level MB credits. Maximum of 10 credits allowed but no more than 3 credits may be used to satisfy microbiology major requirement of 36 credits.  Graded P/N. 

MB 499.  SPECIAL TOPICS (1-16 cr).  This course may be repeated for a maximum of 16 credits.