Microbiology BI-234: Lecture Schedule and Chapter Overview

Course Overview

This study guide summarizes the key topics and chapters covered in the Microbiology BI-234 course, as outlined in the provided lecture schedule. The course follows a logical progression through foundational and advanced topics in microbiology, including microbial structure, genetics, metabolism, immunity, and pathogenic microorganisms.

Course Topics and Chapter Breakdown

1. Introduction to Microbiology

• History and Scope: Overview of the development of microbiology as a scientific discipline, including major discoveries and contributors.

• Microbial Diversity: Introduction to the types of microorganisms (bacteria, viruses, fungi, protozoa, etc.).

• Applications: Importance of microbiology in medicine, industry, and ecology.

2. Cell Structure and Function (Ch. 3)

• Prokaryotic vs. Eukaryotic Cells: Comparison of cell types, including structural differences and similarities.

• Cellular Components: Functions of cell wall, plasma membrane, cytoplasm, ribosomes, and genetic material.

• Specialized Structures: Flagella, pili, capsules, and endospores.

3. Classifying Prokaryotes (Ch. 11)

• Taxonomy: Principles of classification, nomenclature, and identification of prokaryotes.

• Major Groups: Overview of key bacterial and archaeal groups.

• Methods: Use of molecular, biochemical, and morphological characteristics in classification.

4. Classifying Viruses & Prions (Ch. 13)

• Virus Structure: Capsid, envelope, nucleic acid types.

• Viral Replication: Lytic and lysogenic cycles.

• Prions: Infectious proteins and their role in disease.

5. Microbial Metabolism (Ch. 5)

• Metabolic Pathways: Catabolism and anabolism.

• Enzymes: Structure, function, and regulation.

• Energy Production: Glycolysis, Krebs cycle, electron transport chain.

• Equation Example:

$\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \rightarrow 6\text{CO}_2 + 6\text{H}_2\text{O} + \text{energy}$

6. Microbial Nutrition and Growth (Ch. 6)

• Nutritional Requirements: Macronutrients, micronutrients, and growth factors.

• Growth Curves: Lag, log, stationary, and death phases.

• Measuring Growth: Direct and indirect methods.

7. Microbial Genetics (Ch. 7)

• DNA Structure and Replication: Double helix, base pairing, enzymes involved.

• Gene Expression: Transcription and translation.

• Genetic Variation: Mutation, recombination, horizontal gene transfer.

8. Controlling Microbial Growth (Ch. 9 & 10)

• Physical Methods: Heat, filtration, radiation.

• Chemical Methods: Disinfectants, antiseptics, antibiotics.

• Antimicrobial Drugs: Mechanisms of action, resistance, and clinical applications.

9. Infectious Disease and Epidemiology (Ch. 14)

• Pathogenesis: Steps in infection and disease development.

• Epidemiology: Patterns, causes, and control of infectious diseases.

10. Immunity (Ch. 15, 16, 17)

• Innate Immunity: Non-specific defenses such as barriers, phagocytes, inflammation.

• Adaptive Immunity: Specific responses involving B and T lymphocytes, antibodies.

• Immunization: Vaccines and immune testing.

11. Pathogenic Microorganisms (Ch. 19, 20, 21, 24, 25)

• Pathogenic Bacteria: Gram-positive and Gram-negative organisms, selected examples.

• Other Pathogens: Rickettsias, chlamydias, spirochetes, vibrios, DNA and RNA viruses.

• Clinical Relevance: Disease mechanisms, diagnosis, and treatment.

Sample Table: Comparison of Prokaryotic and Eukaryotic Cells

Feature	Prokaryotic Cells	Eukaryotic Cells
Nucleus	No	Yes
Membrane-bound Organelles	No	Yes
Cell Wall	Usually present (peptidoglycan)	Present in plants/fungi (cellulose/chitin)
Size	1-10 μm	10-100 μm

Assessment and Important Dates

• Quizzes: Regular online quizzes covering recent chapters.

• Exams: Three major exams (including final), each covering multiple chapters.

• Homework: Assignments on immunization (MMR) and antibiotic resistance (CRE).

• Key Dates: Add/drop and withdrawal deadlines, as well as holiday breaks, are noted in the schedule.

Additional Info

• This schedule is tentative and may be adjusted due to weather or other class disruptions.

• For the most current information, students should check official college communication channels.