Transcript poly=many
Macromolecules Standard: Students know most macromolecules in cells and organisms are synthesized from a small collection of simple precursors Translation: big old molecules are made By a bunch of little ones all hooked up Together. There are four main types of macromolecules They are: 1.Carbohydrates 2. Proteins 3. Lipids 4. Nucleic Acids (the stuff in DNA) macromolecules are called polymers, poly=many, so macromolecules have many molecules. made of smaller sub-units called monomers, Mono=one, Many monomers combined=polymers Lets start with Carbohydrates, also known As polysaccharides, saccharide means sugar, poly means many. So polysaccharides means many sugars, and monosaccharide means one sugar. (but wait, we know that a carb is a bunch of sugar molecules hooked up together.) -Carbohydrates are important for helping the body produce and store energy Mono or di saccharide????????????? Mono or di saccharide????????????? Mono or di or poly saccharide or Carbohydrate???? Here’s an example of some yummy Carbohydrates Good carbs vs Bad carbs The next type of macromolecule I would like to discuss is Protein -Proteins are found everywhere, inside cells, in membranes, outside of cells, and play many roles for organisms -Proteins act as enzymes to catalyze chemical reactions, they also help with transport, and structure, and the immune system -Proteins are polymers made up of smaller monomers called amino acids. -There are literally millions of different types of proteins but there are only 20 different amino acids. -It is the different combination of amino acids that makes the proteins unique. http://spice.duit.uwa.edu.au/sample s/ast0807/ What are these guys????????? Example of a type of Protein, when this is cooked it tastes real good! Next lets discuss Lipids also known as Fats -Lipids are very diverse -Some lipids help to form our cell membranes -Some lipids are used as energy storage -all lipids are “hydrophobic” which means that they dislike water. (Like the oily coating on birds feathers) -Some lipids help to bind cholesterol in your body -The monomer of a lipid is called a fatty acid Here is an example of a lipid: The last type of macromolecule I would like to discuss are nucleic acids -These polymers are what make up your DNA and RNA -The monomers of nucleic acids are called Nucleotides -Nucleic acids are responsible for storing your genetic information and also provide us with a partial look into the history of Life. Here is an example of a nucleic acid: