Webbonded oxygen. A ketose is a monosaccharide containing one ketone group per molecule. [1] [2] The simplest ketose is dihydroxyacetone, which has only three carbon atoms. It is the only ketose with no optical activity. All monosaccharide ketoses are reducing sugars, because they can tautomerize into aldoses via an enediol intermediate, and the ... WebWithin the nucleotide monomeric subunit of DNA, a nitrogenous base (A, G, C, T) is attached to the 5‑carbon sugar (deoxyribose) via a glycosidic bond. An apurinic/apyrimidinic (AP) site, also referred to as an abasic (“without a base”) site, is formed when the glycosidic bond between nitrogenous base and deoxyribose sugar is hydrolyzed or broken ( Fig. …
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WebNucleotide has sugar pentose, phosphate group, purine or pyrimidine DNA IS double helix or HELICAL STRUCTUREribose has OH in arbon number 2 carbon number 2 While deoxyribose has only H in Nucleotide structure Sugars ´pyrimidine contains two pyridine-like nitrogens in a sic-membered aromatic ring Urine has 4 nitrogens in a fused-ring … Web3 dec. 2024 · The pentose sugars ribose and deoxyribose are part of the nucleotides that make up the crucial nucleic acids like DNA and RNA . The highlighted area shows the … poor fammer how start a farm knvs3rxp9pk
Monosaccharide - Wikipedia
Web2 aug. 2024 · Figure 9.1. 1: Structures of pentose sugar found in nucleic acids: ribose (left) and 2-deoxyribose (right). The nitrogenous bases found in nucleotides are classified as pyrimidines or purines. Pyrimidines are heterocyclic amines with two nitrogen atoms in a six-member ring and include uracil, thymine, and cytosine. WebStructure and nomenclature. With few exceptions (e.g., deoxyribose), monosaccharides have this chemical formula: (CH 2 O) x, where conventionally x ≥ 3. Monosaccharides can be classified by the number x of carbon atoms they contain: triose (3), tetrose (4), pentose (5), hexose (6), heptose (7), and so on.. Glucose, used as an energy source and for the … WebAnomers of Simple Sugars: Mutarotation of Glucose. Figure 1: Cyclization of D-Glucose. D-Glucose can be represented with a Fischer projection (a) or three dimensionally (b). By … poor facts about africa