nucleic acids n.
Skip this Video
Loading SlideShow in 5 Seconds..
Nucleic Acids PowerPoint Presentation
Download Presentation
Nucleic Acids

Loading in 2 Seconds...

play fullscreen
1 / 12

Nucleic Acids - PowerPoint PPT Presentation

  • Uploaded on

Nucleic Acids. Meghan Arora Jeff Chen Julia Kubik Pratibha Sharma Anna Ye. Types: D eoxyribonucleic acid (DNA) Ribonucleic acid (RNA) These molecules: Store and transmit hereditary material Allow living organisms to pass on their traits. Functions. DNA.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'Nucleic Acids' - vin

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
nucleic acids

Nucleic Acids

Meghan Arora

Jeff Chen

Julia Kubik

Pratibha Sharma

Anna Ye



  • Deoxyribonucleic acid (DNA)
  • Ribonucleic acid (RNA)
  • These molecules:
  • Store and transmit
  • hereditary material
  • Allow living organisms to
  • pass on their traits


  • Made of hundreds to thousands of genes
  • Contains all the information that program all cell activities
  • During cell reproduction, DNA is copied and passed on to the next generation
  • Favourable traits are preserved, copied, and continue to be passed down
    • Species evolve
  • Synthesized by genes along the length of a DNA molecule
  • Controls protein synthesis
  • Sends genetic instructions for building proteins from the nucleus to ribosomes located in the cytoplasm


  • Smallest unit of nucleic acids is a nucleotide
  • A nucleotide consists of:
  • pentose sugar
  • phosphate group
  • one of four different
  • nitrogenous bases
  • (A, G, C, and T or U)
  • RNA has ribose as its pentose and U as one of its bases
  • DNA has deoxyribose as its pentose and T as one of its bases
parts of a monomer nitrogenous base
Parts of a Monomer: Nitrogenous Base

There are two families of nitrogenous bases:

pyrimidines and purines

  • Pyrimidines:
  • Six membered ring of carbon and nitrogen atoms
  • Purines
  • Six membered pyrimidine ring, fused to an additional five membered ring
parts of a monomer pentose
Parts of a Monomer: Pentose
  • Ribose in nucleotides of RNA
  • Deoxyribose in DNA
  • Only difference is that deoxyribose lacks an oxygen atom on its number 2 carbon, hence the name
parts of a monomer phosphate group
Parts of a Monomer: Phosphate Group
  • A phosphate group attached to the number 5 carbon of the sugar completes the construction of a nucleotide

Adenosine Triphosphate (ATP)

The cell performs three main functions:

1. Mechanical Work

2.Transport Work

3. Chemical Work

  • Significance:
  • Main energy source in a cell- releases -7.3 kcal of energy per mole, ( -13 kcal/mol in natural environments)
  • Its high reactivity is caused by the triphosphate tail- the phosphate groups are all negatively charged and act like a loaded spring



How ATP Performs Work

  • Energy released from the hydrolysis of ATP is used to transfer the extra phosphate group to energy absorbing reactions with the help of specific enzymes
  • The altered phosphorylated molecule is an intermediate and more reactive
  • Ex. synthesis of glutamine (an amino acid) from glutamic acid and ammonia
  • Another vital property of ATP is its regenerative quality, called the ATP cycle



The ATP Cycle

ATP can be recycled through the phosphorylation of ADP (when ADP combines with a phosphate), and where the energy required for that reaction comes from catabolism (breakdown reactions).In most cases, the energy comes from cellular respiration and light energy in plants.

Below: The ATP cycle



Works Cited,+DNA+Replication