proteins

• what are amino acids

  building blocks of protein
• proteins are made up of long chains of amino acids joined by peptide bonds
• amino acids are chain-bonded
• sequence of amino acids in a chain determines characteristics
• 2 amino acids combined=dipeptide

  3+ amino acids combined=polypeptide
• examples of plant-based protein

  avocado

  broccoli

  beans

  lentils
• examples of animal-based protein

  egg

  chicken breast

  milk (calcium source)

  meat

  fish
• importance of proteins

  growth+repair of tissue

  body structure

  enzymes

  e.g. hemoglobin
• what is hemoglobin?

  pigment in red blood ceels

  carries oxygen

  essential protein
• factors that affect the structure of protein

  temperature

  pH
• when the temp of the protein is high, the structure changes, affecting the function of the protein as a consequence
• when the pH of a protein is high, the structure changes, affecting the function of the protein as a consequence
• what do we call smaller proteins?

  carrier proteins
• carrier proteins need to go against the membrane
• proteins are large organic molecules
• when the function of a protein is affected, it becomes denatured
• when structure of a protein is affected, the function is affected
• when the function of a protein is affected, it changes colour, shape, taste, temp., structure, texture, etc.