Biomolecules Lecture Carbohydrates Lipids Proteins Nucleic Acids.

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    22-Dec-2015

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  • Slide 1
  • Biomolecules Lecture Carbohydrates Lipids Proteins Nucleic Acids
  • Slide 2
  • You are what you eat
  • Slide 3
  • Carbohydrates
  • Slide 4
  • Monosaccharides 4 Examples: 1. Glucose 2. Fructose 3. Ribose 4. Deoxyribose
  • Slide 5
  • Glucose Structure
  • Slide 6
  • Function of Glucose
  • Slide 7
  • Fructose Structure
  • Slide 8
  • Function of Fructose Used by sperm cells as source of energy Converted to glucose and used as source of energy
  • Slide 9
  • Structure of Ribose and Deoxyribose deoxyribose
  • Slide 10
  • Function of Ribose Part of RNA nucleotides and ATP RNA Nucleotide RNA
  • Slide 11
  • Function of Ribose Part of RNA nucleotides and ATP ATP
  • Slide 12
  • Function of Deoxyribose Part of DNA nucleotides
  • Slide 13
  • Disaccharides 3 examples: 1.Sucrose 2. Lactose 3. Maltose
  • Slide 14
  • Carbohydrate Synthesis/Hydrolysis
  • Slide 15
  • Carbohydrate Structure Maltose Glucose + Glucose
  • Slide 16
  • Sucrose Structure
  • Slide 17
  • Sucrose Function Once it is broken down, it is used as a source of energy
  • Slide 18
  • Lactose
  • Slide 19
  • Maltose
  • Slide 20
  • How sweet is sweet? We perceive a sweet taste when a chemical binds to the sweet receptor on the tongue The structure of a compound determines how well it fits into a receptor The more strongly the chemical binds to the receptor, the sweeter it is perceived to be The chemical can be sugar or another compound, such as aspartame
  • Slide 21
  • Slide 22
  • Polysaccharides 3 examples: 1.Glycogen 2.Starch 3.Cellulose
  • Slide 23
  • Slide 24
  • Slide 25
  • Slide 26
  • G LYCOGEN C ELLULOSE S TARCH
  • Slide 27
  • 27
  • Slide 28
  • Lipids 3 types of lipids: 1. Triglycerides (fats & oils) 2. Phospholipids 3. Steroids
  • Slide 29
  • Lipids Fats and oils are composed of 2 types of subunits: glycerol and fatty acids. Fats and oils are composed of 2 types of subunits: glycerol and fatty acids.
  • Slide 30
  • Examples of Trigylcerides
  • Slide 31
  • Triglyceride
  • Slide 32
  • Slide 33
  • Saturated Fats
  • Slide 34
  • Unsaturated Fats
  • Slide 35
  • Trans Fats
  • Slide 36
  • Phospholipids
  • Slide 37
  • Slide 38
  • Steroids 1 2 3 4
  • Slide 39
  • Examples of Steroids
  • Slide 40
  • Proteins Proteins are made up of amino acids linked together
  • Slide 41
  • Proteins OHOH
  • Slide 42
  • Proteins
  • Slide 43
  • Slide 44
  • Examples of Amino Acids
  • Slide 45
  • Slide 46
  • Protein Structure 46 The function of a protein is a result of its 3-D structure
  • Slide 47
  • Protein Structure
  • Slide 48
  • Lactase
  • Slide 49
  • Protein Structure
  • Slide 50
  • Protein Movement
  • Slide 51
  • Protein Transport
  • Slide 52
  • LE 5-13c ATP
  • Slide 53
  • Protein Buffers Help maintain pH in our body
  • Slide 54
  • Protein Receptors Can Activate Molecules Messenger molecule Receptor Activated molecule
  • Slide 55
  • Protein Control
  • Slide 56
  • Protein Defense
  • Slide 57
  • Protein Enzymes
  • Slide 58
  • Enzyme Active Site
  • Slide 59
  • Slide 60
  • DNA: 1.Stores genetic code. That is it stores all of the recipes for making the proteins our body needs (cookbook) 2.Controls when cells divide 3.Regulates metabolism (when enzymes are made)
  • Slide 61
  • Genes: Instructions for making 1 protein (1 recipe)
  • Slide 62
  • RNA Structure
  • Slide 63
  • Slide 64
  • RNA Function 1. Involved in protein synthesis 2. Can function as enzymes (called ribozymes)
  • Slide 65
  • mRNA Has rewritten instructions for making proteins (rewritten recipe) tRNA Carries amino acids (ingredients) as per instructions on mRNA rRNA Holds mRNA and tRNA so that amino acids can be linked as per original recipe on DNA (mixing bowl)
  • Slide 66
  • DNA Nucleotide Phosphate Group Sugar Nitrogenous Base
  • Slide 67
  • DNA Nucleotide
  • Slide 68
  • Slide 69
  • Slide 70
  • RNA Structure
  • Slide 71
  • DNA vs RNA
  • Slide 72
  • DNA and RNA
  • Slide 73
  • RNA

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