Ribose sugar and deoxyribose sugar as part of pentose sugar:

Pentose sugar:
Pentose sugars are a type of monosaccharide that contain five carbon atoms. They are essential components of nucleic acids, such as DNA and RNA, as well as other important biomolecules. Two common types of pentose sugars are ribose and deoxyribose.

Ribose sugar:
Ribose is a pentose sugar that contains five carbon atoms. It is a key component of RNA (ribonucleic acid), which plays a crucial role in protein synthesis. The ribose sugar is responsible for forming the backbone of RNA molecules. It is a crucial component of nucleotides, the building blocks of RNA.

Deoxyribose sugar:
Deoxyribose is also a pentose sugar that contains five carbon atoms. It is a modified form of ribose sugar, with one oxygen atom removed. Deoxyribose is a key component of DNA (deoxyribonucleic acid). The deoxyribose sugar forms the backbone of DNA molecules along with phosphate groups. It also plays a crucial role in the stability and structure of the DNA molecule.

Relation to pentose sugar:
Both ribose and deoxyribose sugars are part of the pentose sugar family. They are both five-carbon sugars that are essential components of nucleic acids. However, they differ in the presence or absence of one oxygen atom.

- Ribose sugar is a part of RNA, while deoxyribose sugar is a part of DNA.
- Both ribose and deoxyribose sugars are involved in the formation of the backbone of nucleic acid molecules.
- The presence or absence of the oxygen atom in deoxyribose sugar affects the stability and structure of DNA.

Summary:
In summary, ribose sugar and deoxyribose sugar are both part of the pentose sugar family. Ribose sugar is found in RNA, while deoxyribose sugar is found in DNA. Both sugars are crucial components of nucleic acids and play essential roles in the structure and function of DNA and RNA molecules.