What is the focus of the Vibrio cholerae exam

a.It has flagellum all over the body and is athletic.

b.Gram-negative bacteria, endotoxic leophyllin are the main pathogenic substances.

c.The classical biotype and the Eltor biotype are included in the O1 serogroup (correct answer) DIt is the only pathogenic bacterium in the genus Vibrio.

e.None of the above is true.

Answer: Vibrio cholerae has monoflagella, active movement, can move like a fish, Gram staining is Gram-negative Vibrio, enterotoxin is its important cause of cholera, resulting in cholera. Vibrio cholerae was divided into Q1 group and O139 group according to serum factors, and O1 group could be divided into paleotypical and Elto type according to biotype.

Answer]: C Vibrio cholerae, negative for Gram stain, short and curved, such as comma-like, active movement, divided into O1 group (can also be divided into two biological types, Hui Burn is the classical biological type and Eltosheng Juebi type) and non-O1 group O139 Vibrio cholerae.

Answer]: C Vibrio cholerae multiplies in the intestine to produce chromosome-encoded, heat-unstable cholera enterotoxin CT, which retains water and sodium in the intestinal lumen, causing vomiting and diarrhea. Vibrio parahaemolyticus produces thermolysin TDH and causes disease, resulting in hemolysis and cardiotoxicity and enterotoxicity.

Salmonella has a strong endotoxin, which can cause fever, white blood cell changes, and toxic shock.

Answer]: The main hormone of Vibrio cholerae is enterotoxin, and enzymes, endotoxins, and other products may also play a role in the pathogenesis of hand reeds in this disease.

Answer]: A Vibrio cholerae can produce cholera enterotoxin and endotoxin and hemagglutinin during the reproduction process, cholera enterotoxin is an exotoxin secreted by Vibrio cholerae and is the main pathogenic substance. Take acres.

Answer]: A Vibrio cholerae causes laughing disease substances such as fimria, flagella and cholera enterotoxin hormone. The pilia and flagella are implicated in their passage through the intestinal mucus layer, adhesion, and colonization of the deity in the intestinal epithelial cells.

Cholera enterotoxin acts on adenylyl cyclase, increasing intracellular cAMP concentration, increasing intestinal mucosal cell secretion, and causing watery stools.

Answer]: B Cholerae arc hail is an aerobic or facultative anaerobic bacterium that grows well on ordinary media. Resistant to alkalis and acids.

Can be grown in a salt-free environment. Vibrio parahaemolyticus is a halophilic Vibrio bacterium. It is often found in coastal seawater, seafood and salted food.

Therefore, it can be identified by a growth assay in salt-free medium.

a.Bacteria resist the intestinal wall through pili adhesion traces, causing inflammation.

b.Bacteria invade the bloodstream and cause sepsis.

c.Enterotoxins act on the mucosa of the small intestine, causing excessive secretion of intestinal fluid (correct answer) DEndotoxins spasm the intestinal wall, causing vomiting and diarrhea.

e.None of the above.

Answer analysis: The main cause of Vibrio cholerae is the secretion of enterotoxins, which leads to the disorder of water and acid in the mucosal cells of the small intestine, causing excessive secretion of intestinal fluid.