Textbook Question
The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation isa. oxygen.b. water.c. NAD+.d. pyruvate.
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3. Energy & Cell Processes
Types of Phosphorylation
Multiple Choice
In nucleotide structure, at which carbon of the sugar does the phosphate group typically attach?
A
5'
B
1'
C
2'
D
3'
Verified step by step guidance1
Understand the basic structure of a nucleotide, which consists of three components: a phosphate group, a sugar molecule (usually ribose or deoxyribose), and a nitrogenous base.
Identify the sugar molecule in the nucleotide. It is a pentose sugar, meaning it has five carbon atoms. These carbons are numbered as 1', 2', 3', 4', and 5'.
Recognize that the phosphate group is a key component of the nucleotide's backbone, linking nucleotides together to form nucleic acids like DNA and RNA.
Learn that the phosphate group typically attaches to the 5' carbon of the sugar molecule. This attachment is crucial for forming the phosphodiester bonds that link nucleotides in a strand.
Visualize the nucleotide structure: the phosphate group is connected to the 5' carbon, while the nitrogenous base is attached to the 1' carbon of the sugar. This arrangement is essential for the nucleotide's function and the formation of nucleic acid chains.
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