病原问答题(国外英文资料).docVIP

病原问答题(国外英文资料) What is the main difference between the prokaryotic cell type, eukaryotic and non-cellular microorganism? A: prokaryotic microorganism: no cellular structure, a lack of independent enzyme system, which can only reproduce in living cells Prokaryotic microorganism: the cellular structure, but the cell differentiation degree is low, the nucleus has no nuclear membrane, the nucleoli, the organelles are not perfect Eukaryotic microorganism: complete cell structure, high cell division, complete nuclear and organelle What are the steps, results, and medical implications of the gram stain? Answer: the step: smear, crystallized purple liquid initial dye, iodine liquid medium dye, 95% ethanol decolorization, carbonic acid complex red dye, oil mirror observation Results: gram-positive bacteria were dyed purple and gram-negative bacteria were dyed red Meaning: identify bacteria, guide clinical drugs, and understand the pathogenicity of bacteria 3, the condition that the bacterium grows and reproduce, the propagation mode, the speed, the growth rule Answer: condition: sufficient nutrient material, appropriate acidity alkalinity, appropriate temperature, certain gas Way: binary fission Fast speed: Rule: be divided into delay period, logarithmic growth period, steady period, decline period Describe the types of bacterial synthesis metabolites, what is the medical significance of each? A: the metabolic products associated with pathogenic bacteria: toxins and invasive enzymes and thermally Used for bacterial identification or fractal type: pigment and heat protoplasm For treatment: antibiotics, vitamins What is the significance of cultivating bacteria artificially? A: it is used for the diagnosis of pathogenic and drug sensitization, the preparation of vaccine, the research of bacteria, and the genetic engineering The physiological meaning of the normal flora? Answer: nutrition action, biological antagonism, immune function, anti-cancer action, anti-aging effect What