Questions and straight Answers Original testbank
Contents
Chapter 1: An Invisible World
Chapter 2: How We See the Invisible World (Microscopy)
Chapter 3: The Cell
Chapter 4: Prokaryotic Diversity
Chapter 5: The Eukaryotes of Microbiology
Chapter 6: Acellular Pathogens (Viruses)
Chapter 7: Microbial Growth
Chapter 8: Microbial Metabolism
Chapter 9: Biochemistry of the Genome
Chapter 10: Biotechnology and Genomics
Chapter 11: Mechanisms of Microbial Genetics
Chapter 12: Modern Applications of Microbial Genetics
Chapter 13: Control of Microbial Growth
Chapter 14: Antimicrobial Drugs
Chapter 15: Microbial Mechanisms of Pathogenicity
Chapter 16: Disease and Epidemiology
Chapter 17: Innate Nonspecific Host Defenses
Chapter 18: Adaptive Specific Host Defenses
Chapter 19: Diseases of the Immune System
Chapter 20: Laboratory Analysis of the Immune Response
Chapter 21: Skin and Eye Infections
Chapter 22: Respiratory System Infections
Chapter 23: Urogenital System Infections
Chapter 24: Digestive System Infections
Chapter 25: Circulatory and Lymphatic System Infections
Chapter 26: Nervous System Infections
,Chapter 1: An Invisible World
Q1. What is microbiology?
A: The study of microorganisms, including bacteria, archaea, fungi, protozoa, algae, and viruses.
Q2. Who is credited with first observing microorganisms through a microscope?
A: Antonie van Leeuwenhoek, using his handcrafted single-lens microscopes.
Q3. What did Louis Pasteur's swan-neck flask experiments disprove?
A: The theory of spontaneous generation.
Q4. What is the germ theory of disease?
A: The concept that microorganisms are the cause of many diseases.
Q5. What are Koch's postulates used for?
A: To establish a causal relationship between a specific microorganism and a specific disease.
Q6. What is binomial nomenclature?
A: The two-part naming system (genus and species) used to formally name organisms, established by Carl
Linnaeus.
Q7. What are the three domains of life?
A: Bacteria, Archaea, and Eukarya.
Q8. What is an obligate intracellular pathogen?
A: A pathogen, such as a virus, that can only reproduce inside a host cell.
, Chapter 2: How We See the Invisible World (Microscopy)
Q9. What is resolution in microscopy?
A: The ability to distinguish two objects as separate and distinct entities.
Q10. What type of microscope uses visible light and glass lenses to magnify specimens?
A: The light (brightfield) microscope.
Q11. What is the purpose of a Gram stain?
A: To differentiate bacteria into gram-positive and gram-negative groups based on cell wall structure.
Q12. What color do gram-positive bacteria appear after Gram staining?
A: Purple/violet.
Q13. What color do gram-negative bacteria appear after Gram staining?
A: Pink/red.
Q14. What is the function of an acid-fast stain?
A: To identify bacteria with waxy, mycolic acid-containing cell walls, such as Mycobacterium species.
Q15. What type of microscopy uses a beam of electrons instead of light to achieve higher resolution?
A: Electron microscopy.
Q16. What is the difference between transmission and scanning electron microscopy?
A: Transmission electron microscopy (TEM) passes electrons through a thin specimen to show internal
structure; scanning electron microscopy (SEM) scans the surface to show 3D topography.