nucleotides and nucleic acids ppt to pdf

Nucleotides And Nucleic Acids Ppt To Pdf

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28.2: Nucleotides and Nucleic Acids

Nucleic acids are the polymers of nucleotides. Nucleotide synthesis is an anabolic mechanism generally involving the chemical reaction of phosphate , pentose sugar , and a nitrogenous base. Destruction of nucleic acid is a catabolic reaction. Additionally, parts of the nucleotides or nucleobases can be salvaged to recreate new nucleotides. Both synthesis and degradation reactions require enzymes to facilitate the event. Defects or deficiencies in these enzymes can lead to a variety of diseases.

Nucleic Acids and Protein Synthesis ppt.pdf

The five bases that are found in nucleotides are often represented by their initial letter: adenine, A; guanine, G; cytosine, C; thymine, T; and uracil, U. You are not required to memorize the structures of these bases, but you must know how each one bonds to the sugar unit in a nucleotide. The Learning Objective of this Module is to identify the different molecules that combine to form nucleotides. The repeating, or monomer, units that are linked together to form nucleic acids are known as nucleotides. Nucleotides can be further broken down to phosphoric acid H 3 PO 4 , a pentose sugar a sugar with five carbon atoms , and a nitrogenous base a base containing nitrogen atoms. If the pentose sugar is ribose, the nucleotide is more specifically referred to as a ribonucleotide , and the resulting nucleic acid is ribonucleic acid RNA. If the sugar is 2-deoxyribose, the nucleotide is a deoxyribonucleotide , and the nucleic acid is DNA.

Copy embed code:. Automatically changes to Flash or non-Flash embed. WordPress Embed Customize Embed. URL: Copy. Presentation Description No description available. Fluorouracil Pathway: Fluorouracil Pathway Suicide inhibition because Flurouracil does not directly inhibit enzyme.

Small molecules— residues. • Carries an amino acid for protein synthesis. • One or more t-RNA's for each amino acid. • “Anti-codon” in t-RNA recognizes.

8. Nucleotides and Nucleic Acids.ppt

If your institution subscribes to this resource, and you don't have a MyAccess Profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus. Please consult the latest official manual style if you have any questions regarding the format accuracy. Nucleosides and nucleotides are the fourth and final major group of biochemical molecules and are essential for numerous biological functions in humans, including maintaining and transferring genetic information, playing a major role in energy storage, and acting as signaling molecules.

The nucleic acid backbone then is asequence of sugar-phosphate groups, whichdiffer only in the sequence of bases. Crick published a paperthat showed that notonly is the DNAmolecule double-stranded, but the twostrands wrap around. Transmission of hereditary information takesplace in the nucleus.

Clipping is a handy way to collect important slides you want to go back to later. Nucleotides that compose DNA are called deoxyribonucleotides. Learn new and interesting things.

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Nucleic acid metabolism

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8. Nucleotides and Nucleic - Free download as Powerpoint Presentation .ppt), PDF File .pdf), Text File .txt) or view presentation.


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