0
Why gram positive bacteria typically more resistant that gram negative bacteria to antibiotics that disrupt plasma membranes such as polymyxin B?
Wiki User
∙ 12y ago
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.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoMost likely because Gram positive bacteria have a thicker peptidoglycan cell wall in comparison to Gram negative bacterias two thinner cell walls.
Add your answer:
Earn +20 pts
What does it mean when a pathogen developes resistance to an antibiotic?
It means that a virus cannot be killed or controlled with antibiotics. There are thoughts at this time that as viral infections come along they have the ability to mutate. When antibiotics are used to stop the spread of the infection the virus has developed and changed in manner that stops the antibiotic killing it off.
Is Neutralizing chemicals a function in cell membranes in a cell?
No, neutralizing chemicals is not a function of cell membranes in a cell. Cell membranes primarily serve as a barrier, regulating the entry and exit of substances to maintain the cell's internal environment. Neutralizing chemicals is a function typically performed by enzymes or other molecules within the cell's cytoplasm.
Can Clostridium Difficile be cured?
Yes. CD is typically opportunistic in that it breaks out when the normal intestinal flora has been killed off by antibiotics. The antibiotic of choice is usually Levoquin (levofloxacin)
How long do you take antibiotics for Lyme disease?
Typically 80-85% of women on antibiotics for bacterial vaginosis will have relief of symptoms within a week or two. However, 50% will have a recurrence within six weeks. Changes in lifestyle can be helpful in reducing the risk of recurrence. These include avoiding perfumed vaginal products, using mild soap (not deodorant or antibacterial) in the vaginal area, avoiding douching, using condoms, wearing thong underwear only occasionally rather than daily, and making sure that if you have any anal sex play, you wash the finger, sex toy, or penis before it goes into your vagina.
Explain why some plasmids contain a gene for resistance to an antibiotic?
Plasmids provide a mechanism for horizontal gene transfer within a population of microbes and typically provide a selective advantage under a given environmental state. Plasmids may carry genes that provide resistance to naturally occurring antibiotics in a competitive environmental niche, or the proteins produced may act as toxins under similar circumstances.
What is a Harley windshield typically made from?
Harley windshields are typically made of Lexan which is a hard-coated polycarbonate material. This material is scratch resistant, durable and distortion-resistant.
Is a staph infection dangerous to humans?
Yes, very. Especially the newer "resistant" staph infections. There are some strains of staph that cannot be treated with antibiotics. Staph infections can kill and staph infections that you encounter at hospitals are typically the most difficult to treat.
Can viruses be controlled by antibiotics or a vaccine?
Typically only the Flu Virus
What is mean by novel antibiotic?
A novel antibiotic refers to a new type of antibiotic that works in a unique way to target and kill bacteria. These antibiotics are typically developed to combat antibiotic-resistant strains of bacteria that are no longer effectively treated by existing antibiotics. Novel antibiotics play a crucial role in addressing the growing problem of antibiotic resistance.
What is neomycin and polymyxin b sulfates and bacitracin zinc ophthalmic ointment and can it be used on a horse?
Neomycin, Polymyxin b sulfates, and bacitracin zinc ophthalmic ointments are typically sold as 'triple antibiotics' they each treat bacterial infections and work in conjuncture with each other to kill bacterial infections. Yes they can be used on horses, you can get name brand or generic products that contain all three (hence the 'triple antibiotic' label). However you should consult your equine veterinarian before using any medication on or near a horses eyes.
What tissue type functions in the formation of membranes and glands?
dense fibrous connective tissue
What is the medical term meaning white plaques on the skin or mucous membranes?
Leukoplakia is the medical term meaning white plaques. These patches are typically found on the mucous membranes of the mouth.
What will antibiotics treat?
Antibiotics are used as an aid to the body's immune system for fighting harmful bacteria.
What is an inselberg?
An inselberg is a knob of resistant rock in a wide erosional plain, typically found in deserts.
What is inselberg?
An inselberg is a knob of resistant rock in a wide erosional plain, typically found in deserts.
How do manufacturers of tin cans prevent corrosion from occurring?
Typically they are coated or plated in corrosion resistant substances.
What are anti skid tiles?
Skid resistant tiles which are typically used in bathrooms and terraces to avoid skidding
