Questions: In a Fischer projection of a monosaccharide, the aldehyde or ketone group is placed at the top of the structure. A chiral center is represented as the intersection of vertical and horizontal lines. The -OH and -H groups of each of the chiral carbons are on the horizontal intersecting lines. In the following structures, the carbons are included in the structures to aid in the visualization. Monosaccharides are classified as either D or L sugars. Choose the correct statement for the structures. - Structure A is a D sugar and structure B is D sugar. - Structure A is a D sugar and structure B is an L sugar. - Structure A is an L sugar and structure B is an L sugar. - Structure A is an L sugar and structure B is a D sugar.

In a Fischer projection of a monosaccharide, the aldehyde or ketone group is placed at the top of the structure. A chiral center is represented as the intersection of vertical and horizontal lines. The -OH and -H groups of each of the chiral carbons are on the horizontal intersecting lines. In the following structures, the carbons are included in the structures to aid in the visualization. Monosaccharides are classified as either D or L sugars. Choose the correct statement for the structures. - Structure A is a D sugar and structure B is D sugar. - Structure A is a D sugar and structure B is an L sugar. - Structure A is an L sugar and structure B is an L sugar. - Structure A is an L sugar and structure B is a D sugar.
Transcript text: In a Fischer projection of a monosaccharide, the aldehyde or ketone group is placed at the top of the structure. A chiral center is represented as the intersection of vertical and horizontal lines. The -OH and -H groups of each of the chiral carbons are on the horizontal intersecting lines. In the following structures, the carbons are included in the structures to aid in the visualization. Monosaccharides are classified as either D or L sugars. Choose the correct statement for the structures. A Structure A is a D sugar and structure B is D sugar. Structure A is a D sugar and structure B is an L sugar. Structure A is an L sugar and structure B is an $L$ sugar. Structure $A$ is an $L$ sugar and structure $B$ is a $D$ sugar.
failed

Solution

failed
failed

Solution Steps

Step 1: Identify the chiral center furthest from the carbonyl group.

For both structures, the chiral center furthest from the carbonyl group is the carbon bonded to the bottom CH2OH group.

Step 2: Determine the D or L configuration.

If the -OH group on this carbon is on the right, it's a D sugar. If it's on the left, it's an L sugar.

Step 3: Classify each structure.
  • Structure A: The -OH group is on the right, so it is a D sugar.
  • Structure B: The -OH group is on the left, so it is an L sugar.

Final Answer: The correct statement is: Structure A is a D sugar and structure B is an L sugar.

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Simplify the following expression. i^173
failedAnswered
Place the following stages of the audition process in order from first to last: 1 [Choose ] 2 [Choose] 3 [Choose] 4 [Choose ]
failedAnswered
Which two details are most important to include in a summary of the paragraph? excerpt from Frankenstein by Mary Shelly Six years have passed since I resolved on my present undertaking. I can, even now, remember the hour from which I dedicated myself to this great enterprise. I commenced by inuring my body to hardship. I accompanied the whale-fishers on several expeditions to the North Sea; I voluntarily endured cold, famine, thirst, and want of sleep; I often worked harder than the common sailors during the day and devoted my nights to the study of mathematics, the theory of medicine, and those branches of physical science from which a naval adventurer might derive the greatest practical advantage. Twice I actually hired myself as an under-mate in a Greenland whaler, and acquitted myself to admiration. I must own I felt a little prouc when my captain offered me the second dignity in the vessel and entreated me to remain with the greatest earnestness, so valuable did he consider my services.
failedAnswered
Evaluate the following limits symbolically using unit a) lim as x approaches infinity of (sin(1/x) - 4e^(-2x))
failedAnswered
Add and simplify. x^2-5/6x^2-x-5 + x+9/6x-6 x^2-5/6x^2-x-5 + x+9/6x-6= (Simplify your answer. Factor completely.)