Answer: A Gram-positive flagellum has only two rings in its basal body; Gram-negatives each have four.
How are Gram-positive and Gram-negative flagella different?

In general the following characteristics are present in gram-positive bacteria: 1. Cytoplasmic lipid membrane 2. Thick peptidoglycan layer 3. Teichoic acids and lipoids are present forming lipoteichoic acids which serve as chelating agents and also for certain types of adherence.

Three types of flagella have so far been distinguished: bacterial archaeal and eukaryotic. The main difference between bacterial and archaeal flagella and eukaryotic flagella is that the bacteria and archaea do not have microtubules or dynein in their flagella and eukaryotes do have microtubules and dynein in the structure of their flagella. Other differences among these three types are: • Bacterial flagella are helical filaments each with a rotary motorat its base which can turn clockwise or c…

Quorum sensing - Wikipedia

Gram-positive bacteria - Wikipedia

Quorum sensing - Wikipedia

Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the gram-staining method of bacterial differentiation. They are characterized by their cell …

The general secretion (Sec) involves secretion of unfolded proteins that first remain inside the cells. In Gram-negative bacteria the secreted protein is sent to either the inner membrane or the periplasm. …

Gram-positive bacteria have a thick mesh-like cell wall made of peptidoglycan (50–90% of cell envelope) and as a result are stained purple by ...


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