Chemistry Of LIFE ! <3

Ajaaaaa & Kamiyahh


  • Cohesion- An attraction between substance of the same kind.
  • Adhesion- An attraction between different substances.
  • The Polarity of water enables many substances to dissolve in water.
  • PH : All solutions have a PH value between 0 and 14. A solution with a PH value of 5 for example has 10 times as many hydrogen ions, as one with PH value of 6.



  • A molecule containing a very large number of atoms.
  • Protein and nucleic acids are examples of Macromolecules.
  • DNA, RNA, ATP are example of nucleic acids.


  • An organic compound made up of Hydrogen, Carbon and Oxygen.
  • Types of carbohydrates - Mono( fructose), Di(sugar), Poly( Starch ) , Saccharides.
  • Carbohydrates are the key source of energy for the body.


  • A protein is a large molecule formed by linked smaller molecules named amino acids.
  • Amino Acids are the building blocks of proteins.
  • Proteins tend to fold into compact shapes determined by how the protein amino acids interact with water and one another.
  • Some proteins are enzymes and promote chemical reactions.


  • Are Nonpolar molecules that are not soluble or mostly insoluble in water.
  • Includes fats, phospholipids, steroids, and waxes.
  • Lipids are an important part of the structure and function of the cell membrane.
  • Fats are lipids that store energy.

Nucleic Acids

  • All cells contain nucleic acids.
  • Nucleic acids are a long chain of smaller molecules named nucleotide.
  • DNA and RNA are types of nucleotides.
  • a nucleotide has three parts ; a sugar, a base, and phosphate group