#Question id: 11227
#Unit 9. Diversity of Life Forms
Mycoplasmas are bacteria that lack cell walls. Based on this structural feature, which statement concerning mycoplasmas should be true.
#Question id: 11228
#Unit 9. Diversity of Life Forms
Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?
#Question id: 11229
#Unit 9. Diversity of Life Forms
Which is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
#Question id: 11230
#Unit 9. Diversity of Life Forms
Which statement about bacterial cell walls is false?
#Question id: 11231
#Unit 9. Diversity of Life Forms
Which of these is the most common compound in the cell walls of gram-positive bacteria?
#Question id: 11232
#Unit 9. Diversity of Life Forms
Penicillin is an antibiotic that inhibits enzymes from catalyzing the synthesis of peptidoglycan, so which prokaryotes should be most vulnerable to inhibition by penicillin?