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Bachelor of Science

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Microbiology is the study of the biology of microorganisms and how they interact with their surroundings. Microbiologists explore the diversity of microbial life and examine what allows some organisms to live in symbiotic relationship with the host organisms while others cause disease.  Specialization in the field of microbiology encompasses the study of the fundamental processes of bacteria, viruses, fungi and parasites, as well as the study of host defense systems that counter microbial infection.

Major Details

College: College of Agriculture & Life Sciences
Admissions Requirements:

No Additional Requirements

Math Required:


    This strand involves skill and facility with calculus. The S-strand begins at one of two calculus options - MATH 124 (Calculus I with Applications) or MATH 125 (Calculus I). Students who successfully complete the S-strand may continue on to MATH 129 (Calculus II), MATH 223 (Vector Calculus), or beyond. Those who choose but are not ready to begin the S-strand will be required to take preparatory work.
Second Language Required:

2 Semesters

  • Scoring the equivalent of second-semester skill level on an entrance or placement examination administered by The University of Arizona.
  • Completion with a C or better of a second semester course at the post-secondary level.
  • An AP (Advanced Placement), IB (International Baccalaureate) or CLEP (College Level Entrance Program) language score determined by the individual language department.
  • In the College of Engineering by a method determined within the College; however, all students in the college must also take a language placement examination on entrance to the University.
2 Semesters
Fees: No
Pre-Major: No
Available at:
  • Main Campus

Four-Year Plan

Archived plans are available on Degree Search 2011-2016 for many degree plans. These are sample plans. Please work with your academic advisor for more specific and up-to-date requirements.

Select a year:

UA Course Requirements Units
1st Semester
CHEM 151 General Chemistry I 4
MATH 113 Elements of Calculus 3
ENGL 101 First-Year Composition 3
First Semester Second Language 4
Tier I General Education 3
2nd Semester
CHEM 152 General Chemistry II 4
MCB 184 Introductory Biology I: The Secrets of Life 4
ENGL 102 First-Year Composition 3
Second Semester Second Language 4
3rd Semester
CHEM 241A Lectures in Organic Chemistry 3
CHEM 243A Organic Chemistry Laboratory 1
MIC 205A General Microbiology 3
MIC 205L Biology of Microorganisms Laboratory 1
Tier I General Education 3
Tier I General Education 3
4th Semester
CHEM 241B Lectures in Organic Chemistry 3
CHEM 243B Organic Chemistry Laboratory 1
ECOL 182R Introductory Biology II 3
ECOL 182L Introductory Biology II Lab 1
MATH 263 Introduction to Statistics and Biostatistics 3
Tier I General Education 3
Tier II General Education 3
5th Semester
BIOC 384 Foundations in Biochemistry 3
Elective 3
Tier II General Education 3
PHYS 102 Introductory Physics I 3
PHYS 181 Introductory Laboratory I 1
6th Semester
Molecular Requirement 3
Core Elective 3
MIC 328R Microbial Physiology 3
PHYS 103 Introductory Physics II 3
PHYS 182 Introductory Laboratory II 1
Elective 3
7th Semester
MIC 421b Microbial Techniques 3
MIC 419 Immunology 4
Tier II General Education 3
AGTM 422 Communicating Knowledge in Agriculture and the Life Sciences 3
8th Semester
MIC 428R Microbial Genetics 3
MIC 428L Microbial Genetics Lab 3
Core Elective 3
Core Elective 3
Elective 3

AZ Transfer Pathways

This page is designed for in-state transfer students who plan to attend the University of Arizona. The information presented lists the most accurate course equivalencies and may not include all possible requirements. Transfer students are strongly encouraged to use this site for reference only and not for self-advising.

Transfer students should work with their community colleges and UA advisors to develop an individualized plan for transfer, and visit

  • All posted Pathways (except for Bachelor of Applied Science Pathways) fulfill an AGEC and most also fulfill an Associate Degree
  • Following a Pathway does not guarantee admission to the UA nor admission to a college/major/program at the UA
  • Use Pathways in consultation with advisors from your community college and the UA
  • Pathways are subject to change at any time

Which college/university do you attend?

Career Planning

The Microbiology major combines coursework about bacteria, viruses, fungi, and parasites, as well as how host defense systems and symbiotic relationships function, with laboratory techniques and science communication strategies. Graduates will be prepared for work as laboratory researchers and technologists, field scientists, consultants, or educators in agriculture, medicine, the pharmaceutical industry, environmental health, or ecology. This major is also excellent preparation for medical, veterinary, or pharmacy school or graduate programs in the life sciences or public health.

Potential Career Areas

  • Diagnostic services
  • Research
  • Product development
  • Occupational safety
  • Waste management
  • Education
  • Agriculture
  • Sales

Sample Employers

  • Hospitals
  • Clinics
  • Pharmaceutical companies
  • Food and beverage producers
  • Agricultural supply companies
  • Research laboratories
  • Colleges and universities
  • Ecological surveys
  • Health departments
  • Waste treatment facilities

Sample Job Titles and National Salary Range

Job Title Salary Range
Microbiologist $35,000 - $108,000
Clinical Laboratory Technologist $25,000 - $48,000
Science Writer $20,000 - $60,000
Research Associate $21,000 - $61,000
Medical Technologist $35,000 - $69,000
Pharmaceutical Sales Representative $33,000 - $122,000
High School Science Teacher $36,930 - $55,050
Occupational Safety and Health Officer $25,900 - $47,580
Food Scientist $30,000 - $97,000
Microbiology Soil Scientist $33,650 - $93,460
Wildlife Biology Technician $24,000 - $58,000
Waste Management Specialist $62,278 - $94,416