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Biomolecules Lecture

Biomolecules Lecture. Carbohydrates Lipids Proteins Nucleic Acids. You are what you eat. Carbohydrates. Monosaccharides. 4 Examples: 1. Glucose 2. Fructose 3. Ribose 4. Deoxyribose. Glucose Structure. Function of Glucose. Fructose Structure. Function of Fructose.

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Biomolecules Lecture

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  1. Biomolecules Lecture • Carbohydrates • Lipids • Proteins • Nucleic Acids

  2. You are what you eat

  3. Carbohydrates

  4. Monosaccharides 4 Examples: 1. Glucose 2. Fructose 3. Ribose 4. Deoxyribose

  5. Glucose Structure

  6. Function of Glucose

  7. Fructose Structure

  8. Function of Fructose • Used by sperm cells as source of energy • Converted to glucose and used as source of energy

  9. Structure of Ribose and Deoxyribose deoxyribose

  10. Function of Ribose • Part of RNA nucleotides and ATP RNA RNA Nucleotide

  11. Function of Ribose • Part of RNA nucleotides and ATP ATP

  12. Function of Deoxyribose • Partof DNA nucleotides

  13. Disaccharides • 3 examples: • Sucrose • 2. Lactose • 3. Maltose

  14. Carbohydrate Synthesis/Hydrolysis

  15. Carbohydrate Structure Glucose + Glucose Maltose

  16. Sucrose Structure

  17. Sucrose Function • Once it is broken down, it is used as a source of energy

  18. Lactose

  19. Maltose

  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

  21. Polysaccharides • 3 examples: • Glycogen • Starch • Cellulose

  22. STARCH GLYCOGEN CELLULOSE

  23. 27

  24. Lipids 3 types of lipids: 1. Triglycerides (fats & oils) 2. Phospholipids 3. Steroids

  25. Lipids • Fats and oils are composed of 2 types of subunits: glycerol and fatty acids.

  26. Examples of Trigylcerides

  27. Triglyceride

  28. Triglyceride

  29. Saturated Fats

  30. Unsaturated Fats

  31. Trans Fats

  32. Phospholipids

  33. Phospholipids

  34. Steroids 4 3 2 1

  35. Examples of Steroids

  36. Proteins Proteins are made up of amino acids linked together

  37. Proteins OH

  38. Proteins

  39. Examples of Amino Acids

  40. Protein Structure The function of a protein is a result of its 3-D structure 46

  41. Protein Structure

  42. Protein Structure Lactase

  43. Protein Structure

  44. Protein Movement

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