Which statement about bacterial cell walls is false?
A)Bacterial cell walls differ in molecular composition from plant cell walls. B)Cell walls prevent cells from bursting in hypotonic environments. C)Cell walls prevent cells from dying in hypertonic conditions. D)Bacterial cell walls are similar in function to the cell walls of many protists, fungi, and plants. E)Cell walls provide the cell with a degree of physical protection from the environment.
In a bacterium that possesses antibiotic resistance and the potential to persist through very adverse conditions,such as freezing,drying,or high temperatures,DNA should be located within,or be part of,which structures? 1)nucleoid region 2)endospore 3)fimbriae 4)plasmids
A)1 only B)1 and 2 only C)1 and 4 only D)2 and 4 only E)1, 2, and 4
You were asked to classify a number of unknown prokaryotes.Which feature of the organisms would allow you to make a positive distinction as to whether they belong to the domain Bacteria or Archaea?
A)cell walls made of peptidoglycan B)unicellularity C)lack of a nucleus D)can survive harsh environmental conditions E)show adaptations to a broad range of habitats