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Why are encapsulated strains much more likely to cause disease than strains that do not produce a capsule?
Some bacterial cells are surrounded by an extracellular slime layer called a capsule or glycocalyx. This structure can play a protective role for certain pathogenic bacteria such as streptococcus pneunoniae. The capsule prevents phagocytic white blood cells from engulfing and destroying this bacterial pathogen, enabling the organism to invade the lungs and cause pneumonia. The capsule is also a means for many bacteria to attach to solid surfaces in the environment.
What role does evolution play in the treatment of bacterial disease?
Over the course of time, there are many changes brought about by evolution in the type of treatment for bacterial disease. Some years ago, people would die of simple bacterial diseases when today, they can be fully cured even at home.
Could a bacterial cell dispense with a cell wall if it had a capsule Why or why not?
A bacterial cell could potentially survive without a cell wall if it has a capsule, as the capsule provides a protective layer that can help maintain structural integrity and prevent desiccation. However, the cell wall plays a crucial role in protecting the cell from osmotic pressure and mechanical stress, which the capsule alone may not fully compensate for. Therefore, while a capsule can enhance survival under certain conditions, it cannot entirely replace the essential functions of a cell wall in maintaining cell shape and stability.
Is periodontal disease viral or bacterial?
Periodontal disease is primarily caused by bacterial infections in the gums and supporting structures of the teeth. Although viruses can also play a role in gum disease, bacteria such as Porphyromonas gingivalis are the main culprits in causing periodontal disease.
How does the presence of a capsule contribute to an organisms pathogenicity?
The capsule helps protect the microorganism from the host immune system by hindering phagocytosis. It also assists in adherence to host cells and tissues, promoting colonization and increasing the organism's ability to cause disease. The capsule may also play a role in protecting the microorganism from environmental stressors.
What is the role of heat shock in bacterial transformation?
Heat shock is a process used in bacterial transformation to make the bacterial cells more permeable to foreign DNA. By briefly exposing the cells to high temperatures, the cell membrane becomes more flexible, allowing the uptake of DNA molecules more easily. This increases the efficiency of the transformation process by promoting the incorporation of the desired genetic material into the bacterial cells.
What C-shaped structure in the nephron surrounds the glomerulus?
Bowman's Capsule
The Bowman's capsule is part of which system in the body?
The Bowman's capsule is part of the urinary system, specifically within the structure of the nephron in the kidneys. It is a cup-like sac at the beginning of the tubular component of a nephron and plays a crucial role in the process of filtration of blood to form urine.
What is Role of spreading vector disease?
what is the role of a vector in the spread of a disease
What is the role of antiseptics in bacterial infecton?
To kill bacteria.
Is Bowman's capsule related to the kidney?
Yes, Bowman's capsule is a crucial component of the kidney. It is the cup-shaped structure that encases the glomerulus, which is a network of capillaries involved in the filtration of blood. Together, they form the renal corpuscle, playing a vital role in the process of urine formation by filtering waste products from the blood.
What is the role of flagella in the bacterial cell?
The fagella helps the bacteria move.
