Upload
lionel-malone
View
213
Download
1
Embed Size (px)
Citation preview
Nucleic Acids and Nucleic Acids and ATPATP
Nucleic AcidsNucleic Acids
Named because they were first found in the nucleus of cells
VERY VERY BIGContain C, H, O, N and P
NucleotidesNucleotides
The Building Block of Nucleic Acids
Nucleotides ContinuesNucleotides Continues
3 parts:– Phosphate Group– Nitrogenous Base– Sugar
Deoxyribose in DNA Ribose in RNA
Phosphate GroupPhosphate Group
PO4
Nitrogenous BaseNitrogenous Base
AdenineCytosineGuanineThymineUracil
GenesGenes
About 1000 rungs of DNA make a single gene
StructureStructure
DNA – double helix– Contains T and not U
RNA– Single Stranded– Contains U and not T– mRNA, tRNA and rRNA
ATPATP
Adenosine TriPhosphateTransfers energy from energy releasing
reactions to energy-requiring reactions that maintain cellular activities
StructureStructure
3 phosphate groups attached to an adenosine molecule
Energy Transferring ReactionEnergy Transferring Reaction
Via hydrolysis, the last phosphate group is removed and releases energy
Produces ADP – adenosine Diphosphate