Articles related to "Gram Positive"

Gram + bacteria stain purple due to the chemistry and structure of their peptidoglycan cell wall. Here's how Gram staining identifies Gram-positive organisms.

Most bacteria have one of these two types of cell walls. The differential Gram stain uses two dyes to distinguish between bacteria based on cell wall structure.

Pneumonia is an inflammation or infection of the lungs most commonly caused by a bacteria or virus, but can also be caused by inhaling foreign substances.

Pneumonia is an infection of the lungs typically caused by a bacteria, virus, or inhaled substances. Here is a look at some gram-negative bacterial causes.

Gram staining involves the application of a series of dyes that leaves some bacteria purple (Gram +) and others pink (Gram -). Here's how the Gram stain works.

The amount and location of peptidoglycan in the prokaryotic cell wall is what determines whether a bacterium is Gram-positive or Gram-negative.

Most bacteria have one of these two types of cell walls. The differential Gram stain uses two dyes to distinguish between bacteria based on cell wall structure.

Gram- bacteria stain pink due to the location of cell wall peptidoglycan and an external LPS membrane. Here's how Gram staining identifies Gram negative organisms.

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do aminoglycosides destroy bacteria without hurting our cells?

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How does penicillin destroy bacteria without hurting our cells?

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do quinolones destroy bacteria without hurting our cells?

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do tetracyclines destroy bacteria without hurting our cells?

This collection of articles provides basic information about prokaryotic and eukaryotic cells, their structure, function, differences and similarities.

Pneumonia is an inflammation of the lungs caused by bacteria, virus, fungus or the inhalation of foreign substances. Here are some quick links to articles on pneumonia.

In microbiology, there are many different techniques used to identify microbes. Differential media typically provide general information regarding identity.

Bacterial controls are often used with differential stains as examples of typical positive and negative stain reactions; helpful references when identifying unknowns.

Fleming served during WW I, as had Ehrlich and Domagk. He saw infectious disease deaths. Years later he sought remedies to these diseases. One day, a way opened to this.

Antibiotics are drugs used to fight bacterial infections. How do these medications work to kill bacteria without harming human cells?

In order to view individual bacteria through a light microscope, a bacterial smear must be attached to a slide and then stained. Here is the procedure.

MacConkeys Agar is a special bacterial growth medium that is selective for Gram- bacteria and can differentiate those bacteria that are able to ferment lactose.

Selective media inhibit the growth of certain microbes, providing general information regarding the bacteria that are able to grow on these specialized types of agar.

Meningitis is an inflammation of the meninges that line and protect the brain and spinal cord. It occurs when bacteria or viruses breech the blood-brain barrier.

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do they destroy bacteria without hurting our cells?

The distinction between species of sexually reproducing organisms is quite clear, but how are the lines drawn for organisms, like bacteria, that reproduce as clones?

Every time a new antibiotic is introduced, bacteria find a way of becoming resistant to it. This article describes bacterial resistance to vancomycin.

Differential stains and media can provide preliminary identification of microbes, but to identify Gram- bacteria to the species, a more sophisticated test is required.

Archaea are prokaryotes that differ from bacteria and eukaryotes enough to be assigned to their own taxonomic domain. Here is a brief introduction to Archaeans.

Botulinum toxin is a substance that causes a certain disease and also treats others.

Probiotics have been making waves in the nutritional community for ages, but only recently has kefir been found to have an abundance of nutritional and healing benefits.

Tetanus is one of the conditions that a person can be vaccinated for. What exactly is it?

Staph infections pose a real threat to children, the elderly and those with compromised immune systems, but, generally speaking, staph bacteria are common and harmless.

Urinary tract infections can be mild or serious with symptoms that depend on the portion of the urinary tract involved.

Most Gram-negative bacteria have hair-like projections external to their cell's wall. One type, fimbriae, allows bacteria to stick together and attach to host cells.

Bacterial vaginosis is a condition in which the normal flora of the vagina has been disrupted shifting from the predominance of Lactobacillus species to an overgrowth of

Blood Agar is a bacterial growth medium that can distinguish normal from pathogenic bacteria based on the effect of bacterial hemolytic enzymes on red blood cells.

Morning's the worst of it; when that sticky, smelly film covers teeth and tongue. Some call it morning breath, or dragon breath, but what really causes halitosis?

Chlorophyll is best known for its role in plant photosynthesis, but it's more than that. It is also a strong bactericidal, deodorizing, and a curative substance.

Clostridium difficile (aka C. diff or CDF) has recently emerged as a serious infectious agent, both deadly and resistant to antibiotics. Why is C. diff a superbug?

Oxygen is required for cells to break down organic molecules in the most energy-efficient way. How do microbes that live under conditions of low or no O2 metabolize food?

Bacteria in the genus Streptococcus can be classified by species, hemolysis pattern and by their antigens, chemicals to which the human immune system reacts.

Ear cytology is a valuable test used to diagnose ear infections in dogs and cats. Cytology detects bacterial, yeast and parasitic infections and helps direct treatment.

Fimbriae are external structures of Gram- cells which enable bacteria to adhere to surfaces and, as virulence factors, mediate infection of host cells.

Pneumonia is an infection of the lungs most commonly caused by a bacterium or virus, but can also result from inhalation of endemic fungi. Here are the most common.

Living things can be studied and classified based on their genome as well as the protein products derived from those genetic instructions.

Ocimum (Basil or Tulsi) is a sacred and much revered plant in India. It is highly glorified in Ayurveda as the "incomparable one" due to its numerous beneficial effects.

Types of Streptococcus can be distinguished by cell arrangements, hemolysis pattern that they generate on blood agar and by their antigenic particles.

Antibiotics are chemotherapeutic agents used to inhibit or kill bacteria (prokaryotic organisms). How do sulfonamides impact bacteria without hurting our cells?

Dental caries or cavities are caused by acidic metabolites produced by bacteria that normally inhabit the mouth, where they feed on carbohydrates.

Pneumonia is an inflammation of the lungs that can result from infection with a bacterial, fungal or viral pathogen.

Pneumonia is an inflammation of the lungs usually caused by a bacteria or virus. Respiratory infection from bacteria-like Mycoplasma causes atypically mild symptoms.