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LEQ: What is the relationship between proteins and nucleic acids?

Discover the essential connection between proteins and nucleic acids, exploring their structure, function, and role in cellular processes. Understand the significance of amino acids, nucleotides, and polypeptides in forming these polymers.

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LEQ: What is the relationship between proteins and nucleic acids?

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  1. LEQ: What is the relationship between proteins and nucleic acids? • Reading: 32.1, 2.3; Quiz tuesday; test next monday • Activator: ruminations • “DNA neither cares nor knows. DNA just is.” Richard Dawkins. • In your group, discuss what this quote might mean • Key terms – protein, nucleic acid

  2. Proteins are responsible for nearly every task that a cell performs. Monomer: amino acid Common structure, unique R groups left: general amino acid structure right: serine is polar, hydrophilic

  3. Polypeptides consist amino acids linked by peptide bonds • Information-rich.

  4. hydrogen bond Hemoglobin • Polypeptides differ in number and order of amino acids. • characteristic sequence; changes alter function • Amino acids interact to give a protein its shape.

  5. The information & function of proteins is encoded in the sequence of nucleic acids. RNA Protein synthesis Chemical reactions Gene regulation…. DNA Encodes biological information

  6. nitrogen-containing molecule,called a base A phosphate group deoxyribose (sugar) • Monomer (multi-part): nucleotide

  7. The nitrogen containing bases are the only difference in the four nucleotides.

  8. Polynucleotides (left) have a unique sequences of bases: Hydrogen bonding DNA is double stranded (right)

  9. Genes store the information necessary to assemble proteins. • A gene is a segment of DNA that stores genetic information on a chromosome. • mutation

  10. Summary: • Explain how both nucleic acids and proteins are polymers. Be sure to describe the monomers that make up the polymers.

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