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What allows crystal violet to attach on the staphylococcus?
Crystal violet attaches to Staphylococcus due to its ability to bind to the peptidoglycan layer of the bacterial cell wall. Staphylococcus species, being Gram-positive bacteria, have a thick peptidoglycan layer that retains the dye during the Gram staining process. This interaction is largely due to the positive charge of crystal violet, which is attracted to the negatively charged components of the bacterial cell wall. As a result, the dye effectively stains the cells, allowing for their identification under a microscope.
What color is nitrogen fertilizer?
Nitrogen fertilizer typically appears as a white or off-white granule or crystal, often coated with a colorant to indicate its nitrogen content. Common forms include urea, ammonium nitrate, and ammonium sulfate, which are usually colorless or slightly yellowish. However, the actual appearance can vary depending on the specific formulation and any additives used in the product.
What if all your cells appear deep purple with a gram stain?
If all your cells appear deep purple with a Gram stain, it indicates that they are Gram-positive bacteria. This characteristic is due to the thick peptidoglycan layer in their cell walls, which retains the crystal violet dye used in the staining process. It suggests a potential bacterial infection, and further tests would be needed to identify the specific type of bacteria and determine appropriate treatment.
What is the decolorizer used in the capsule stain?
The decolorizer used in the capsule stain is a dilute solution of 20% copper sulfate. It is used to remove the purple crystal violet stain from the background and bacterial cells, leaving only the capsule stained.
How do some bacterial cells adapt to cold temperatures?
Some bacterial cells can adapt to cold temperatures by producing antifreeze proteins that prevent ice crystal formation, altering their lipid composition to maintain membrane fluidity, and increasing expression of cold shock proteins that help stabilize their cellular components. These adaptations allow the bacteria to survive and continue functioning in cold environments.
What color of ammonium nitrate?
Ammonium nitrate is typically a white, colorless crystal or powder.
Is heating ammonium chloride crystal a physical or chemical change?
Heating ammonium chloride crystal is a physical change, as it only involves a change in state from a solid to a gas without forming any new substances.
Is NH4H2PO4 a hydraited crystal?
No, NH4H2PO4 is not a hydrated crystal. It is a salt composed of ammonium, hydrogen, phosphorus, and oxygen ions. It does not contain water molecules in its chemical structure.
Is ammonium chloride an ionic or covalent compound?
Ammonium chloride is an ionic compound. It is formed by the attraction between positively charged ammonium ions and negatively charged chloride ions, resulting in a crystal lattice structure.
Is crystal hair treatment same as keratin?
No
What are the bondings in ammonium chloride?
The formula for ammonium chloride is NH4Cl. The bond between the ammonium ion (NH4Cl+) and the chloride ion(Cl-) is ionic and ammonium chloride is an ionic compound. However, the bonds between the nitrogen and hydrogen atoms in the polyatomic ion NH4+ are covalent.
Is ammonium fluoride a ionic compound?
Yes, but only when suspended (dissolved) in water. Compare Ammonium Fluoride - solid (NH2F) - with NH2F in water - gives NH2+ and F- , an ionic compound.
What is crystal violet iodine complex?
Crystal violet iodine complex is a chemical compound formed when crystal violet dye interacts with iodine. This complex is commonly used in microbiology as a stain for bacterial cells, allowing them to be visualized under a microscope. The crystal violet iodine complex binds to the peptidoglycan layer of bacterial cell walls, imparting a purple color to the cells.
Why is the dissolution of ammonium chloride an exothermic reaction?
The dissolution of ammonium chloride is an exothermic reaction because it releases energy in the form of heat. When ammonium chloride crystals are dissolved in water, the intermolecular forces between the ions and water molecules are stronger than the forces within the solid crystal lattice, resulting in the release of energy as heat.
Any research in ammonium fluoro antimonates in crystal growth?
An attempt is made by adding alkali metals with ammonium fluoro antimonates to improve the mechanical, optical and electrical properties . Also combined crystals of sodium fluro antimonates and potasium fluoro antimonates with ammonium fluoro antimonates are also grown as mixed crystals and their properties are being analysed....
What is the compound name for NH4 2Cr2O7 and stucture?
The compound NH4 2Cr2O7 is known as ammonium dichromate. Its chemical structure consists of two ammonium ions (NH4+) and one dichromate ion (Cr2O7^2-). The dichromate ion is composed of two chromium atoms bonded to seven oxygen atoms in a polyatomic anion.
How many black cartridge crystal games was made?
15 but 6 of them were lost to poor treatment
