17 Questions
What is the location of the capsule in bacteria?
Outside the cell wall
Which of the following is a role of pili in bacteria?
Adherence to host cells
What is the composition of a capsule in bacteria?
Polysaccharide or polypeptide
Where are pili mainly found in bacteria?
Mainly in gram-negative bacteria
What is the main role of flagella in bacteria?
Organ of locomotion or motility
What is the composition of ribosomes?
Protein and RNA
Which of the following statements is true about ribosomes?
They are composed of protein and RNA
What is the function of inclusion granules in the cytoplasm?
Store nutrients such as starch, glycogen, and phosphate
Which term refers to extrachromosomal double-stranded circular DNA molecules capable of replicating independently of the bacterial chromosome?
Plasmids
What is the chemical composition of a typical bacterial capsule?
Usually polysaccharides
Which organelle serves as the site of protein synthesis in cells?
Ribosomes
What is the main function of ribosomes in bacterial cells?
Site of protein synthesis
Which component of the bacterial cell is considered a virulence factor?
Capsule
What is the purpose of inclusion granules in bacterial cells?
Storage of nutrients
Which structure in bacterial cells is not surrounded by a membrane?
Plasmids
What is the function of nuclear bodies in bacterial cells?
Synthesis of DNA
Which type of bacteria lacks a cell wall, making them difficult to stain with Gram stain?
Cell wall deficient forms
This quiz covers the structure and composition of ribosomes, the site of protein synthesis in the cell. It discusses the subunits of prokaryotic ribosomes and the role of ribosomal RNA (rRNA) in protein synthesis. Additional topics include intracytoplasmic structures and nuclear bodies.
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