AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

STRUCTURE OF NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What shape is a ribose sugar molecule?
A
triangle
B
square
C
pentagon
D
hexagon
Explanation: 

Detailed explanation-1: -Ribose is a pentose sugar. This means that the five carbons that form the majority of the structure give the molecule a pentagon shape.

Detailed explanation-2: -Ribose is a single-ring pentose [5-Carbon] sugar.

Detailed explanation-3: -The properties are Deoxyribose: A pentagon shaped sugar that is found in the backbone of DNA. Phosphate group: A chemical compound that makes up part of the backbone of DNA. It is a phosphorus atom surrounded by four oxygen atoms.

Detailed explanation-4: -Ribose is a simple sugar and carbohydrate with molecular formula C5H10O5 and the linear-form composition H−(C=O)−(CHOH)4−H. The naturally-occurring form, d-ribose, is a component of the ribonucleotides from which RNA is built, and so this compound is necessary for coding, decoding, regulation and expression of genes.

Detailed explanation-5: -Ribose, an important aldopentose, commonly adopts a furanose structure, as shown in the following illustration. By convention for the D-family, the five-membered furanose ring is drawn in an edgewise projection with the ring oxygen positioned away from the viewer.

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