19 Questions
What is the most common shape of bacteria?
Spherical
Which bacterial species is responsible for causing cholera?
Vibrio cholerae
What is the function of teichoic acid in gram positive bacteria?
Antigenicity
Which of the following is NOT a non-essential structure outside the bacterial cell wall?
Ribosomes
What is the primary chemical composition of the cell wall in gram negative bacteria?
Peptidoglycan and Lipopolysaccharides (LPS)
What is the shape of Escherichia coli, a common bacterial species?
Straight rod (bacilli)
What is the function of fimbriae (pili) in bacterial cells?
DNA transfer
What differentiates the cell wall of mycoplasmas from other bacteria?
'No staining' reaction
Which bacterial arrangement is exhibited by Neisseria gonorrhoeae?
'Pairs'
'Pleomorphic' bacteria are those that:
'Are variable in shape'
Which of the following is a characteristic of prokaryotic cells?
Replicate by mitosis
What distinguishes eukaryotic cells from prokaryotic cells?
Replicate by budding
Which of the following is a common feature of both prokaryotic and eukaryotic cells?
Contains peptidoglycan in cell wall
Which type of bacteria is characterized by the presence of a nuclear membrane and multiple chromosomes?
Eukaryotic bacteria
What is a distinguishing feature of Gram-negative bacterial cell wall?
Contains lipopolysaccharides
Which major group does helminths belong to among the agents of human infectious diseases?
Fungi
What type of ribosomes are present in prokaryotic cells?
70S ribosomes
'Microbiology' is the science that deals with which of the following?
Microbes that can be seen by the naked eye
'Binary fission' is a form of replication used by which type of cells?
Prokaryotic cells
Test your knowledge of microbiology with questions covering the differences between prokaryotic and eukaryotic organisms, essential and non-essential bacterial cell structures and their functions, Gram-positive and Gram-negative bacterial cell walls, and the process of spore formation in bacteria.
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