Chemistry 6: Nucleic Acids and ATP in A&P I

Structure of DNA

• Components:
  • Nucleotides: building blocks
  • Sugar-phosphate backbone
  • Nitrogenous bases: adenine, thymine, cytosine, guanine
• Double helix: DNA's spiral shape formed by two strands
• Base pairing:
  • Adenine pairs with Thymine
  • Cytosine pairs with Guanine

Structure of RNA

• Components:
  • Single-stranded
  • Nucleotides: similar to DNA but with uracil instead of thymine
• Types of RNA:
  • mRNA (messenger)
  • tRNA (transfer)
  • rRNA (ribosomal)

Function of DNA

• Genetic material:
  • Stores genetic information
  • Instructions for protein synthesis
• Replication:
  • Process by which DNA makes a copy of itself

Genetic Diseases

• Causes:
  • Mutations in DNA
• Examples: Specific diseases were not listed, but it was discussed how genetic mutations can lead to various conditions.

ATP (Adenosine Triphosphate)

• Function:
  • Primary energy carrier in cells
• Structure:
  • Composed of adenine, ribose, and three phosphate groups
• Hydrolysis:
  • ATP -> ADP + Phosphate + Energy

Cellular Respiration

• Purpose:
  • Process of converting biochemical energy from nutrients into ATP
• Stages:
  • Glycolysis
  • Krebs cycle
  • Electron transport chain

Key Takeaways

• DNA and RNA are crucial for storing and translating genetic information.
• ATP is essential for cellular energy.
• Understanding the structure and function of these molecules is critical in A&P I.