Unit 2 Biological Molecules

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  1. List the biological Molecules.
    • Carbohydrates
    • Lipids
    • Minerals
    • Nucleic acid
    • Proteins
    • Vitamins 
    • Water
  2. Define Metabolism.
    All biochemical reactions taking place inside the cells of organisms.
  3. Define risk factor.
    Factors increasing chances of developing a disease.
  4. What's the name of the monomer of Carbohydrates?
  5. What's the name for the Polymer of Carbohydrates?
  6. What is the monomer of Proteins?
    Amino Acids
  7. What's the polymer of Proteins?
  8. What's the monomer of nucleic acids?
  9. What are the Polymers of nucleic acids?
    DNA & RNA
  10. What is a condensation reaction?
    A reaction in which water is release when two smaller molecules become a large molecule by forming a covalent bond.
  11. What is a hydrolysis reaction?
    A reaction in which water is used up to break a covalent bond and break a big molecule, into a smaller one.
  12. What is the ratio of Carbohydrate molecules? 
    hint it contains C,H,O.
    Image Upload 1
  13. List the 3 properties of Simple sugars.
    • They are sweet
    • They are soluble in water
    • They form crystals
  14. 3-Carbon Monosaccharide is known as?
  15. 5-Carbon Monosaccharide is known as?
  16. 6-Carbon Monosaccharide is known as?
  17. The formula for glucose?
    Image Upload 2
  18. The two isomers of glucose?
    • α-glucose 
    • β-glucose
  19. Image Upload 3 α or β glucose?
    α- glucose
  20. The name of bond between a disaccharide? What molecule is released during its formation?
    • Glycosidic Bond
    • Water molecule
  21. Properties both monosaccharides and Disaccharides have in common.
    • Sweet
    • Soluble in water
  22. Word Equation for respiration?
    Glucose + Oxygen → Water + Carbon Dioxide + ATP
  23. Which of the Glucose isomers CANNOT be broken down by Plants and Animals?
    β- Glucose
  24. What is the name of the Disaccharide formed by 2 Alpha glucose's?
  25. Glycosidic bond is between which 2 Carbon atoms?
  26. What are the features of BOTH Starch and Glycogen?
    • They are both insoluble in water
    • Both made of Alpha Glucose molecules
  27. How does Glycogen differ to starch?
    • 1-4 linked glucose are shorter
    • has more branches extending from chain
  28. Characteristics of Cellulose?
    • Made from β-glucose
    • Strong
    • Insoluble
  29. What does a Amino Acid consist of?
    Image Upload 4
  30. What is the name of the bonding that is formed when a amino acid becomes a dipeptide molecule?
    What molecule is released?
    • Peptide bond 
    • Water
  31. What are essential amino Acids?
    • Amino acids animals cannot build themselves.
    • Must be consumed/Taken into diet
  32. Polypeptides are Synthesised in the?
  33. what does mRNA stand for?
    What role does it have in synthesising proteins?
    • Messenger Ribose Nucleic Acid
    • They join together the amino acids.
  34. The amino acid sequence of polypeptide/protein is called the?
    Primary structure
  35. What are the secondary structures of proteins?
    • α-helix
    • β-pleated sheet
  36. Tertiary Protein structure formed when?
    Secondary proteins Coils/Pleats fold.
  37. Bonds in Tertiary proteins are?
    • Disulfide bond
    • Ionic bond
    • Hydrogen bond
  38. How does heat affect tertiary protein structure?
    • Heat increase kinetic energy in molecules
    • molecules vibrate and breaks some bonds (H-bonds)
    • Protein denatures
Card Set
Unit 2 Biological Molecules
AS BIO for dummies
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