Microbiology and Lab Course

Lesson 1 • Classification and Taxonomy of Microorganisms

Introduces binomial nomenclature, phylogenetic trees, and the three-domain system. Students can correctly classify organisms and interpret taxonomic relationships.

Lesson 2 • Microbial Cell Structure and Function

Compares prokaryotic and eukaryotic cell architecture and organelle roles. Builds structural literacy needed for understanding microbial physiology throughout the course.

Lesson 3 • History and Scope of Microbiology

Traces microbiology from early observations to modern applications. Provides context for why microbial study is central to medicine, industry, and environment.

Lesson 1 • Environmental Factors Affecting Growth

Examines how temperature, pH, oxygen, osmolarity, and pressure influence microbial growth. Prepares students to design appropriate incubation conditions in the lab.

Lesson 2 • Nutritional Requirements of Microorganisms

Identifies macronutrients, micronutrients, and growth factor needs across microbial types. Directly informs media formulation covered in later lab chapters.

Lesson 3 • Energy Metabolism Pathways

Covers glycolysis, fermentation, aerobic respiration, and anaerobic respiration. Students link metabolic pathways to observable lab results such as gas and acid production.

Lesson 1 • Aseptic Technique Principles

Teaches flame sterilization, sterile transfer, and contamination-free work habits. These skills underpin every culture and inoculation procedure in the course.

Lesson 2 • Biosafety Levels and Risk Assessment

Defines biosafety levels 1–4, associated hazards, and required containment measures. Students assess organism risk before selecting appropriate protective measures.

Lesson 3 • Personal Protective Equipment and Hygiene

Covers correct donning, doffing, and disposal of PPE in a microbiology lab. Reinforces hand hygiene and decontamination as primary infection-control barriers.

Lesson 1 • Simple and Differential Staining

Teaches simple stains and the Gram, acid-fast, and endospore differential staining procedures. Students interpret staining results to infer cell wall composition and clinical relevance.

Lesson 2 • Principles of Light Microscopy

Explains optics, magnification, resolution, and numerical aperture of compound microscopes. Students focus specimens correctly and select appropriate objectives for each application.

Lesson 3 • Preparation of Microscopic Specimens

Covers wet mount, hanging drop, and heat-fixed smear preparation methods. Proper specimen prep prevents distortion and ensures accurate morphological observation.

Lesson 1 • Types and Composition of Culture Media

Classifies media by physical state, chemical composition, and functional purpose. Students select the correct medium type for each organism and experimental goal.

Lesson 2 • Isolation of Pure Cultures

Teaches streak plate, pour plate, and spread plate methods for obtaining pure cultures. Students evaluate colony morphology to confirm isolation success.

Lesson 3 • Media Preparation and Sterilization

Covers weighing, dissolving, pH adjustment, and autoclave sterilization of media. Students prepare sterile, correctly buffered media ready for inoculation.

Lesson 4 • Selective Isolation of Specific Organisms

Applies selective and differential media to isolate clinically and environmentally significant organisms. Students design isolation strategies for target organisms from complex samples.

Lesson 1 • Commercial Identification Systems

Introduces miniaturized biochemical panels and automated identification platforms. Students operate these systems and interpret numerical profile codes for organism identification.

Lesson 2 • Classical Biochemical Identification Tests

Covers carbohydrate fermentation, oxidase, catalase, urease, and IMViC tests. Students perform and interpret results to narrow identification of unknown isolates.

Lesson 3 • Molecular Identification Techniques

Applies PCR, 16S rRNA gene sequencing, and MALDI-TOF MS for definitive identification. Students extract DNA, run PCR, and interpret sequence or spectral data.

Lesson 4 • Immunological Identification Methods

Covers agglutination, ELISA, and immunofluorescence for antigen-based identification. Students select and perform appropriate serological tests for target organisms.

Lesson 1 • Mutation and DNA Repair

Covers spontaneous and induced mutations, mutagen types, and repair mechanisms. Students connect mutation rates to phenotypic variation and antibiotic resistance emergence.

Lesson 2 • Genomics and Bioinformatics Basics

Introduces whole-genome sequencing, annotation, and comparative genomics tools. Students navigate public databases and interpret basic genomic output for microbial identification.

Lesson 3 • Horizontal Gene Transfer Mechanisms

Explains transformation, transduction, and conjugation as routes of gene exchange. Students predict how resistance genes spread through microbial populations.

Lesson 1 • Mechanisms of Antimicrobial Resistance

Explains enzymatic inactivation, efflux pumps, target modification, and reduced permeability. Students link resistance mechanisms to specific drug-organism combinations.

Lesson 2 • Classes of Antimicrobial Agents

Categorizes antibiotics, antifungals, antivirals, and antiparasitics by mechanism of action. Students match drug class to target site and predict spectrum of activity.

Lesson 3 • Molecular Detection of Resistance Genes

Applies PCR and sequencing to detect resistance genes such as mecA, vanA, and blaKPC. Students interpret molecular results alongside phenotypic susceptibility data.

Lesson 4 • Broth Dilution and MIC Determination

Teaches macro- and microdilution methods for determining minimum inhibitory concentration. Students calculate MIC, MBC, and interpret clinical significance of results.