STRUCTURE OF NUCLEIC ACIDS AND REPLICATION OF DNA,ATP, Purines & Pyrimidines:, DNA Structure, Hydrogen bonding,Semi conservative DNA replication, DNA Polymerase, Leading and lagging strands, RNA structure, Protein Synthesis,Transcription, Translation, Template and non template strands, Post transc...
TOPIC 6: NUCLEIC ACIDS AND
PROTEIN SYNTHESIS
STRUCTURE OF NUCLEIC ACIDS AND REPLICATION OF DNA
Nucleotide Structure:
- Nucleic acids like DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are
macromolecules.
- They are polymers, meaning made up of many similar, smaller molecules
joined into a long chain.
- Nucleotides are the subunits that make up DNA and RNA.
- DNA and RNA are known as polynucleotides.
Nucleotides:
- Nucleotides are made up of three components:
- A nitrogen containing base (nitrogenous base)
- A pentose sugar (containing 5 carbon atoms)
- A phosphate group.
, ATP:
- Adenosine triphosphate (ATP) is the energy carrying molecule that provides
the energy to drive many processes inside living cells.
- is a phosphorylated nucleotide.
- Can combine with one, two and three phosphate groups:
- One phosphate = adenosine monophosphate (AMP)
- Two phosphate = adenosine diphosphate (ADP)
- Three phosphate groups = adenosine triphosphate (ATP)
Purines & Pyrimidines:
- The nitrogenous base molecules found in DNA (A,T,C,G) and RNA (A,U,C,G)
occur in purines and pyrimidines.
- Bases adenine and guanine are purines - they have double ring structure
- Base cytosine, thymine and uracil are pyrimidines - they have a single ring
structure.
DNA Structure:
- The nucleic acid DNA is a polynucleotide because it is made up of nucleotides
bonded together in a long chain.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller pabloesteban. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.40. You're not tied to anything after your purchase.
