Questions: 1. What are fimbriae primarily used for in bacteria? A. Cellular locomotion B. Sticking to substrates or one another C. DNA transfer D. Storage of materials Ans B 2. What is the primary function of pili in bacteria? A. Cellular locomotion B. Pulling two bacterial cells together for DNA transfer C. Sticking to substrates D. Storage of nutrients Ans B 3. What component of the bacterial cell wall determines the Gram staining response? A. Cytoskeleton B. Peptidoglycan C. Plasma membrane D. Flagella Ans B 4. What is the role of the plasma membrane in bacteria? A. Storage of nutrients B. Cellular locomotion C. Acquiring nutrients and eliminating wastes D. Maintaining cell shape Ans C 5. What do plasmids typically confer to bacteria? A. Resistance to antibiotics B. Cellular locomotion C. Nutrient storage D. Shape maintenance Ans A Questions: 6 What are the characteristics of fimbriae in bacteria? A. Hair-like appendages B. Longer than pili C. Used for DNA transfer D. Found only in Gram-negative bacteria Ans A 7 What is the primary function of flagella in bacteria? A. Cellular respiration B. Cellular locomotion C. Storage of nutrients D. DNA replication Ans B 8 What do inclusion bodies in bacteria serve as? A. Nutrient storage vessels B. Cellular locomotion structures C. Components of the cytoskeleton D. Membrane-bound organelles Ans A 9 What is the composition of the bacterial cell wall? A. Lipids and proteins B. Peptidoglycan C. Cellulose D. Chitin Ans B 10 What is the significance of the small size of bacteria? A. Allows for faster diffusion of materials B. Increases surface area-to-volume ratio C. Enables complex cellular structures D. Prevents waste accumulation Ans A 11 What is the primary function of the cytoplasm in bacteria? A. Site for cell growth, metabolism, and replication B. Protection and structural support C. DNA storage D. Protein synthesis Ans A 12. What type of DNA do bacterial chromosomes typically consist of? A. Single circular or linear double stranded DNA B. Only linear double stranded DNA C. Only single circular DNA D. Plasmid DNA Ans A 13. What is the role of the ribosome in bacteria? A. Cellular locomotion B. Protein synthesis C. DNA replication D. Cell wall formation Ans B 14. Which type of bacteria is more resistant to antibiotics? A. Gram-positive bacteria B. Gram-negative bacteria C. Both Gram-positive and Gram-negative D. Neither Gram-positive nor Gram-negative Ans B 15. What is the composition of peptidoglycan in the bacterial cell wall? A. Modified sugars cross-linked by short polypeptides B. Lipids and proteins C. Cellulose and chitin D. Only proteins Ans A 16. What is the primary function of the bacterial cell wall? A. Protection and structural support B. Protein synthesis C. Cellular respiration D. DNA replication Ans A 17 . What type of appendages are pili sometimes referred to as? A. Sex pili B. Fimbriae C. Flagella D. Cilia