20 Questions
What is the function of the sex pilus in bacterial cells?
Function in conjugation
Which bacterial species are known to form spores especially in the soil?
Bacillus and Clostridium species
What is the primary characteristic of spores in bacterial cells?
Metabolically inactive with DNA and ribosomes
What is the role of pili in bacterial cells?
Mediate attachment of bacteria to human cells
What is the primary characteristic of pili in bacterial cells?
Filaments that extend from bacterial surface
How are pili different from spores in bacterial cells?
Pili are filaments of protein while spores are metabolically inactive.
What is a major difference between the function of pili and sex pilus in bacterial cells?
Pili mediate attachment to human cells while sex pilus functions in conjugation.
Why are spores able to survive for many years, especially in the soil?
Because of their thick, keratinlike coat.
Why are spores not killed by many disinfectants?
Because they have a thick, keratinlike coat.
What happens when nutrients are restored after spore formation?
Spores will germinate to form bacteria that can cause disease.
What is the function of pili in bacterial cells?
Mediate attachment of bacteria to human cells
Why are spores highly heat resistant and not killed by many disinfectants?
Their thick keratinlike coat
How do spores differ from bacteria in terms of metabolic activity?
Spores require nutrients to be metabolically active
Which statement about pili is incorrect?
Highly heat resistant
What triggers the formation of spores in bacterial cells?
Short supply of nutrients
What is a unique characteristic of spores that allows them to survive for many years, especially in the soil?
Thick, keratinlike coat
What is the primary function of pili in bacterial cells?
Mediate attachment to human cells
Which statement best describes the structure of spores in bacterial cells?
Active and metabolically functional
What makes boiling ineffective in killing spores?
Thick, protective coat
What distinguishes the sex pilus from other pili in bacterial cells?
Functions in conjugation
Explore the fundamentals of medical microbiology, focusing on the introduction and structure of bacteria. Understand the taxonomic ranks of microorganisms and their significance in causing infectious diseases in humans.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
