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Is all antibiotics equally effective against gram positive and gram negative bacteria Agreedisagree?
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What types of bacteria do antibiotics kill?
Gram negative and gram positive bacteria.
What is a narrow spectrum antibiotic effective against?
Narrow spectrum antibiotics are effective against just gram positive bacteria, just gram negative bacteria, or only a few specified species. Examples include: penicillin G, gentamicin, clindamycin, and gentamicin.
Does negative ion kills bacteria?
Negative ions supposedly kill some bacteria. There is some debate on how effective this is and how many negative ions you have to have circulating to kill bacteria.
Which Gran Positive or negative which is more serious?
Gram positive bacteria responds to the Gram stain; gram negative bacteria does not. The two bacteria do not respond to the same antibiotics. Right now the most dangerous bacteria is a gram negative bacteria. That could change.
Why is important to distinguish between Gram-positive and Gram-negative bacteria in diagnosing a bacterial infection?
gram- negative and gram- positive bacteria differ in their response to different antibiotics
Why gram positive bacteria typically more resistant that gram negative bacteria to antibiotics that disrupt plasma membranes such as polymyxin B?
Polymixin antibiotics interact with the lipopolysaccharide molecule of Gram negative bacteria. This component forms the outer leaflet of the outer membrane. Gram-positive bacteria do not have an outer membrane or lipopolysaccharide and thus polymixin antibiotics are unable to bind to the cell.
What type of infection are antibiotics used to fight?
Antibiotics treat bacterial infections (provided the bacteria isn't resistant to the antibiotic). Different antibiotics are required to treat Gram positive and Gram negative bacteria due to their differing structures. They have no effect on viruses.
How do broad-spectrum antibiotics work?
The Broad Spectrum Antibiotics -are any of a variety of substances, usually obtained from microorganisms, that inhibit the growth of or destroy certain other microorganisms.The great number of diverse antibiotics currently available can be classified in different ways, e.g., by their chemical structure, their microbial origin, or their mode of action.They are also frequently designated by their effective range. Tetracycline is the most widely used broad-spectrum antibiotics, are effective against both Gram-positive and Gram-negative bacteria, as well as against rickettsia (any of a group of parasitic bacteria that live in the tissues of ticks, mites, and other arthropods, and cause disease when transmitted to man and other animals) and psittacosis-causing organisms. Ciprofloxacin (Cipro) is another broad spectrum antibiotic, effective in the treatment of mild infections of the urinary tract and sinuses. The medium-spectrum antibiotics bacitracin, the Erythromycin, penicillin, and the Cephalosporins (any of a group of broad-spectrum antibiotics obtained from fungi of the genus Cephalosporium) are effective primarily against Gram-positive bacteria, although the streptomycin group is effective against some Gram-negative and Gram-positive bacteria. Polymixin are narrow-spectrum antibiotics effective against only a few species of bacteria.
How do antibiotics work on gram - negative bacteria?
Gram negative bacterial cells have an outer membrane that interferes with antibiotics and drug entry into the cell. The bacteria that are resistant to antibiotics are E. coli, salmonella, shigella, and Yersina. The first three affect the GI tract and the second causes the Black Death. These are resistant to penicillin. So ampicillin and streptomycin are used.
Can antibiotics lead to septic shock if used to treat gram-positive bacterial infections?
No, but it can if it is gram negative bacteria..
A drug that inhibits mitosis such as griseofulvin would be more effective against a. Fungi. b. Gram-positive bacteria c. Mycobacteria d. Wall-less bacteria e. Gram-negative bacteria?
a. fungi
Why gram negative bacteria more resistant to antibiotics?
Gram-negative bacteria have an outer membrane made of lipopolysaccharide and proteins, which the Gram-positive bacteria are lacking. More multi-drug resistance is being recognized in this class of bacteria than previously, and they are becoming a formidable foe in the environment because of the lack of new antibiotics to treat infections.
