15 Questions
What is the main function of pili in bacteria?
To mediate attachment to human cell surfaces
What is the composition of flagella in bacteria?
Proteins called flagellins
What is the function of the glycocalyx in bacteria?
To form a protective coating
What is the role of capsules in bacteria?
To limit the ability of phagocytes to engulf the bacteria
What is the function of the sex pilus in bacteria?
To form the attachment between the male and female bacteria during conjugation
What is the primary function of the glycocalyx in bacteria?
To facilitate firm adherence to various structures
What is the composition of biofilm?
Polysaccharide and protein in nature
What is the primary function of biofilm in bacteria?
To protect bacteria from antibiotics and host immune defenses
Which of the following structures is NOT associated with bacterial adherence?
Flagella
What is the primary function of capsules in bacteria?
To protect bacteria from antibiotics and host immune defenses
What is the main component of the bacterial cell wall responsible for its rigidity?
Peptidoglycan
What is the reason for the difference in Gram staining between Gram-positive and Gram-negative bacteria?
The ability of Gram-positive bacteria to retain the crystal violet–iodine complex
Which of the following is NOT a component of the bacterial cell wall?
Glycocalyx
What is the target of antibacterial drugs such as penicillins and cephalosporins?
Peptidoglycan synthesis
What is the term for the arrangement of bacteria in pairs, chains, or clusters?
Arrangement of cocci
Learn about the composition and significance of bacterial capsules in determining virulence, identification, and vaccines. Discover how capsules aid in bacterial adherence to human tissues. Test your knowledge on the role of capsules in Klebsiella pneumoniae, Streptococcus pneumoniae, and Haemophilus influenzae.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
