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A procaryotic cell wall that has primarily peptidoglycan with small amounts of teihoic acid and lipoteichoic acid?
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∙ 12y ago
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∙ 12y ago
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What causes chemical erosion?
Chemical weathering is primarily cause by small amounts of acid that are in rainwater.
What is composition of Saturn atmosphere?
The composition of Saturn's atmosphere is primarily hydrogen and helium. There are trace amounts of oxygen, methane, ammonia and nitrogen.
What is the difference between gram positive and gram negative cell wall?
there is only difference in gram positive and negative is of cell wall as :The Gram positive cell wallThe Gram positive cell wall is characterised by the presence of a very thick peptidoglycan layer, which is responsible for the retention of the crystal violet dyes during the Gram staining procedure. It is found exclusively in organisms belonging to the Actinobacteria (or high %G+C Gram positive organisms) and the Firmicutes (or low %G+C Gram positive organisms). Bacteria within the Deinococcus-Thermus group may also exhibit Gram positive staining behaviour but contain some cell wall structures typical of Gram negative organisms. Imbedded in the Gram positive cell wall are polyalcohols called teichoic acids, some of which are lipid-linked to form lipoteichoic acids. Because lipoteichoic acids are covalently linked to lipids within the cytoplasmic membrane they are responsible for linking the peptidoglycan to the cytoplasmic membrane. Teichoic acids give the Gram positive cell wall an overall negative charge due to the presence of phosphodiester bonds between teichoic acid monomers.The Gram negative cell wallUnlike the Gram positive cell wall, the Gram negative cell wall contains a thin peptidoglycan layer adjacent to the cytoplasmic membrane, which is responsible for the cell wall's inability to retain the crystal violet stain upon decolourisation with ethanol during Gram staining. In addition to the peptidoglycan layer the Gram negative cell wall also contains an additional outer membrane composed by phospholipids and lipopolysaccharides which face into the external environment. The highly charged nature of lipopolysaccharides confer an overall negative charge to the Gram negative cell wall. The chemical structure of the outer membrane lipopolysaccharides is often unique to specific bacterial strains (i.e. sub-species) and is responsible for many of the antigenic properties of these strains.As a phospholipid bilayer, the lipid portion of the outer membrane is largely impermeable to all charged molecules. However, channels called porins are present in the outer membrane that allow for passive transport of many ions, sugars and amino acids across the outer membrane. These molecules are therefore present in the periplasm, the region between the plasma membrane and outer membrane. The periplasm contains the peptidoglycan layer and many proteins responsible for substrate binding or hydrolysis and reception of extracellular signals. The periplasm is thought to exist as a gel-like state rather than a liquid due to the high concentration of proteins and peptidoglycan found within it. Because of its location between the cytoplasmic and outer membranes, signals received and substrates bound are available to be transported across the cytoplasmic membrane using transport and signalling proteins imbedded there.
What is the chemical composition for pink granite?
Pink granite would consist primarily of potassium feldspar and quartz with minor amounts of mica and other feldspars.
What 5 elements make up protein molecules?
Proteins are primarily made of carbon, hydrogen, oxygen and nitrogen, with some sulfur. Other elements may be present in trace amounts.
What financial statement does not report amounts primarily on accrual basis?
statement of cash flows
What causes chemical erosion?
Chemical weathering is primarily cause by small amounts of acid that are in rainwater.
Are the stars heat?
No. Stars are made primarily of hydrogen and helium. They produce enormous amounts of heat but are not made of heat.
What gas is created when paper burns?
Primarily carbon dioxide and water vapor, with some amounts of carbon monoxide.
Is there led in d batteries?
Only in "trace" amounts, if that. Lead is used primarily in wet cell (automobile) batteries.
What is a nutrient necessary in small amounts in order to maintain good health and found primarily in fruits and vegetables?
A variety of Vitamins.
What are the gases in human flatulence?
Primarily nitrogen and carbon dioxide. Oxygen, hydrogen, and methane in varying amounts may also be present.
What is composition of Saturn atmosphere?
The composition of Saturn's atmosphere is primarily hydrogen and helium. There are trace amounts of oxygen, methane, ammonia and nitrogen.
What is antaries the star made of?
All stars are made primarily of hydrogen, with lesser amounts of helium and trace amounts of heavier elements. The precise composition of each star is a little different, depending on the mass and age of the star.
What types of music are saxophone's used in?
all kinds, but in different amounts and popularity. primarily woodwind and brass/woodwind bands and jazz bands.
What is addedto iron to make steel?
Primarily carbon in controlled amounts. However chromium, vanadium and other elements are added to give special characteristics.
Does maple sirup contain fructose and glucose?
NO - It consists primarily of sucroseand water, with small amounts of other sugars. The imitationproducts are those that contain fructose.
