Please select the CORRECT pair.
A) Transmission electron microscope - surface details
B) 70S ribosomes - protozoa
C) Bacillus and Clostridium - endospores
D) Peptidoglycan - bacteria and archaea
E) Gram-positive cells - O antigen

Question

Quizplus · Accepted Answer

Bacillus and Clostridium are the two genera of bacteria that produce endospores. The other pairs in the options are incorrect. Transmission electron microscope is used to study internal details whereas scanning electron microscope is used to study surface details; 70S ribosomes are found in bacteria and archaea while protozoa have 80S ribosomes; peptidoglycan is found only in bacteria, not in archaea; and O antigen is found in the cell wall of gram-negative bacteria, not gram-positive cells.

Please Select the CORRECT Pair