TLS Online TPP Program

#Question id: 34536


Which of the following are true about bacterial cell walls?

#XL - S Microbiology
  1. Gram-positive bacteria have a thick peptidoglycan layer
  2. Gram-negative bacteria possess an outer membrane
  3. Teichoic acids are unique to Gram-negative bacteria
  4. Peptidoglycan provides rigidity and osmotic protection