Question

Gram-negative bacteria have a cell wall made of peptidoglycan, whereas gram-positive bacteria have a cell wall made of what?

Answer 1

lipoteichoic acid

Gram-negative bacteria have a cell wall made of peptidoglycan, whereas Gram-positive bacteria have a cell wall made of lipoteichoic acid. Figure 22.19 Which of the following statements about the nitrogen cycle is false? a. Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates  NO3-  into nitrogen gas  N2 . Ammonification is the process by which ammonium ion  NH4+  is released from decomposing organic compounds. Nitrification is the process by which nitrites  NO2-  are converted to ammonium ion  NH4+ .