20 Questions
Which of the following bacterial species lacks a cell wall?
Mycoplasma
What is the primary function of the bacterial cell wall?
Maintaining cell shape and rigidity
Which of the following bacterial shapes is characterized by a curved or comma-shaped morphology?
Vibrio
What is the primary component of bacterial cell membranes?
Proteins and phospholipids
Which type of bacteria requires a special stain, such as Ziehl Neelsen stain, for identification?
Acid-fast bacilli
What is the primary function of ribosomes in bacterial cells?
To synthesize proteins
What is the main component of the capsule in Bacillus anthracis?
Polypeptide
What is the primary function of pili in bacterial cells?
To adhere to external surfaces
What is the primary function of plasmids in bacterial cells?
To code for antibiotic resistance factors
What is the minimum temperature required to sterilize bacterial spores?
121°C for 20-30 minutes
What is the primary function of the nuclear material in bacterial cells?
Genetic information storage
Which of the following bacterial shapes is characterized by a variable morphology?
Pleomorphic
What is the primary component of the bacterial cell wall?
Peptidoglycan
Which of the following types of bacteria has a waxy cell wall?
Mycoplasma
What is the primary function of the ribosomes in bacterial cells?
Protein synthesis
What is the primary function of the glycocalyx in bacterial cells?
To allow bacteria to adhere to various structures
What is the characteristic of the DNA in the nucleoid of bacterial cells?
It is circular, single-stranded
What is the primary function of the ribosomes in bacterial cells?
To synthesize proteins
What is the characteristic of bacterial spores?
They are highly resistant to boiling
What is the size of the ribosomes in bacterial cells?
70S
Learn about the basics of bacteriology, including the classification of organisms' cells into eukaryotic and prokaryotic cells, and the different shapes of bacteria such as cocci, bacilli, spiral, and comma-shaped.
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