Nucleotides Flashcards
What are the three components of a nucleotide?
Phosphate group, pentose sugar, nitrogenous base.
What is the name of the sugar in RNA?
Ribose.
What is the name of the sugar in DNA?
Deoxyribose.
What is the bond between the sugar and the phosphate group?
Phosphodiester Bond
Name the two purine bases.
Adenine and Guanine.
Name the three pyrimidine bases.
Thymine, Uracil and Cytosine.
What does Guanine always bind to?
Cytosine
What does Adenine bind to in DNA?
Thymine.
What does Adenine bind to in RNA?
Uracil.
What is the structural difference between Ribose and Deoxyribose?
Below carbon 2 is a hydrogen atom in deoxyribose but a hydroxide molecule in ribose.
What is the number of hydrogen bonds between Guanine and Cytosine?
3 hydrogen bonds.
What is the number of hydrogen bonds between Adenine and Thymine/Uracil?
2 hydrogen bonds.
What are ATP and ADP examples of?
Phosphorylated nucleotides.
What are ATP and ADP comprised of?
Ribose sugar, Adenine and inorganic phosphates.
