What is Fischer projection of glucose?
In a Fischer projection, the carbon atoms of a sugar molecule are connected vertically by solid lines, while carbon-oxygen and carbon-hydrogen bonds are shown horizontally.
How do you know if sugar is D or L?
- if the OH on the bottom chiral centre points to the right, it is referred to as D-
- if the OH on the bottom chiral centre points to the left, it is referred to as L- .
How glucose is represented using Haworth projection formula?
Step 3: To generate the pyranose ring, the oxygen atom on C-5 in 1 needs to be attached to C-1 by a single bond. 1 and 2 both represent D-glucose, but, in 2, unlike in 1, C-1 and the hydroxy group on C-5 are on the same side of the plane of the paper. 8 and 9 are the Haworth formulas of the pyranoses of D-glucose.
What is Fischer projection and Haworth projection?
Fischer and Haworth projections are two types of illustration which are used to represent the 3D arrangement of atoms in carbohydrates. They are also used to compare different carbohydrates.
What are main features of Fischer projection?
The Fischer Projections allow us to represent 3D molecular structures in a 2D environment without changing their properties and/or structural integrity.
How do you know if a Fischer projection is D or L?
If the hydroxyl group (or amino group for amino acids) is pointing to the right in the Fischer Projection, the sugar (or amino acid) is designated as D. If the hydroxyl group (or amino group for amino acids) is pointing to the left in the Fischer projection, the sugar (or amino acid) is designated as L.
What is meant by Fischer projection?
Fischer projection, method of representing the three-dimensional structures of molecules on a page, devised by Emil Fischer. By convention, horizontal lines represent bonds projecting from the plane of the paper toward the viewer, and vertical lines represent bonds projecting away from the viewer.