A 5-carbon sugar (ribose or deoxyribose) forms the central molecule in a nucleotide. By convention, the carbon atoms in the sugar are numbered from the original carbonyl position on the chain using a number plus the prime symbol (‘). For example, a nitrogenous base is attached to the 1’ (pronounced “one prime”) carbon position, which was originally the sugar’s carbonyl group. A phosphate group is attached to the 5’ carbon position, the carbon atom that is outside the sugar ring. Refer to the structure of a nucleotide and select the statement which is incorrect:
A 5-carbon sugar (ribose or deoxyribose) forms the central molecule in a nucleotide. By convention, the carbon atoms in the sugar are numbered from the original carbonyl position on the chain using a number plus the prime symbol (‘). For example, a nitrogenous base is attached to the 1’ (pronounced “one prime”) carbon position, which was originally the sugar’s carbonyl group. A phosphate group is attached to the 5’ carbon position, the carbon atom that is outside the sugar ring. Refer to the structure of a nucleotide and select the statement which is incorrect:
A 5-carbon sugar (ribose or deoxyribose) forms the central molecule in a nucleotide. By convention, the carbon atoms in the sugar are numbered from the original carbonyl position on the chain using a number plus the prime symbol (‘). For example, a nitrogenous base is attached to the 1’ (pronounced “one prime”) carbon position, which was originally the sugar’s carbonyl group. A phosphate group is attached to the 5’ carbon position, the carbon atom that is outside the sugar ring. Refer to the structure of a nucleotide and select the statement which is incorrect:
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**Nucleotides and Their Components**
A 5-carbon sugar (ribose or deoxyribose) forms the central molecule in a nucleotide. By convention, the carbon atoms in the sugar are numbered from the original carbonyl position on the chain using a number plus the prime symbol ('). For example, a nitrogenous base is attached to the 1' (pronounced "one prime") carbon position, which was originally the sugar’s carbonyl group. A phosphate group is attached to the 5' carbon position, the carbon atom that is outside the sugar ring.
Refer to the structure of a nucleotide and select the statement which is incorrect:
### Diagram Explanation:
- **Phosphate Group (Left, Pink Circle):** The phosphate group consists of one phosphorus atom bonded to four oxygen atoms, with one of the oxygen atoms forming a double bond with the phosphorus.
- **Nitrogenous Base (Right, Yellow Oval):** The diagram depicts a nitrogenous base structure containing carbon and nitrogen atoms within a ring formation.
- **5-Carbon Sugar (Center, Blue Pentagon):** The sugar molecule is labeled with each carbon atom numbered from 1' to 5', demonstrating the structure and connections to the nitrogenous base and the phosphate group.
### Statements to Evaluate:
a. Each nucleotide includes one nitrogenous base, attached to the 1' carbon of the sugar.
b. A nitrogenous base is an organic molecule containing both carbon and nitrogen atoms.
c. In nucleic acids, the nitrogenous bases contain either one ring or two fused rings.
d. Nucleotide bases are all similar in the number of nitrogen atoms.
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This information and diagram help illustrate the basic structure of nucleotides, an essential component of nucleic acids like DNA and RNA.
Definition Definition A complex molecule that makes up a fundamental unit of a DNA or RNA molecule. Nucleotides are composed of a sugar, a nitrogenous base, and a phosphoric acid.
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