BSc Biochemistry Sem I 2019 20 Nov 2019-20 BIO CHEM BIOCHEMISTRY PAPER I Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii. Figures to the right indicate full marks

1. Q1 A) State True or False. 4 marks
   • i. Freezing point of water is
   • ii. Hydrogen bonds provide adhesive forces to structure of water iil. Hydrophobic substances dissolve in water
   • iv. Entropy increases when crystalline substances dissolve in water
2. Q1 B) Answer the following. (Any three) 9 marks
   • i. Give an account of ionization of water
   • ii. Explain Molarity with equation Calculate Hydroxyl ion concentration of solution with a pH 6
   • iv. Structure of water
   • v. Explain surface tension and viscosity of water
   • vi. Explain latent heat and specific heat of water
3. Q1 C) Answer the following. (Any two) 12 marks
   • i. Explain buffer with examples il, Describe physical properties of water
   • iii. What is the interaction of water with solutes?
   • iv. Importance of water
4. Q2 A) State True or False. 4 marks
   • i. Myoglobin and Hemoglobin are examples of Globular proteins
   • ii. Ninhydrin when reacts with amino acids produces Methylene blue dye iil. Edman degradation is a method of sequencing amino acids in a peptide
   • iv. Hemoglobin molecule is made up of five heme groups
5. Q2 B) Answer the following. (Any three) 9 marks
   • i. Write in short about Ampholytes
   • ii. What are Polypeptides? ili. Draw structure of both Glycine and Valine
   • iv. Write in brief about optical rotation
   • v. Explain Fibrous proteins
   • vi. Write a note on non-essential amino acids
6. Q2 C) Answer the following. (Any two) 12 marks
   • i. Explain Primary and Tertiary structure of protein in detail
   • ii. Write in brief about chemical properties of amino acids iil. Describe in detail the chemical reaction of amino acids with Ninhydrin reagent
   • iv. Elaborate on any four physical properties of amino acids, Biochemistry - | SEMESTER - | 3HRS 100MARKS
7. Q3 A) State True or False. 4 marks
   • i. Simple sugars are also called polysaccharides
   • ii. Animals store carbohydrates as starch ili, Carbohydrates always have 2:1 ratio of oxygen and hydrogen
   • iv. Humans can digest carbohydrate fibers
8. Q3 B) Answer the following. (Any three) 9 marks
   • i. What is a glycosidic bond? Explain the formation of 1,4 bond
   • ii. Give reason: Glucose and Galactose gives same osazones ill. Describe the difference between maltose, lactose, sucrose with respect to occurrence and
   • iv. Write a detail note on stereoisomerism of carbohydrates
   • v. Give the classification of carbohydrates
   • vi. With the help of reaction, explain the Lobry de Bruyn Alberda Van Ekenstien
9. Q3 C) Answer the following. (Any two) 12 marks
   • i. Elaborate on galactose with respect to structure, occurrence and significance li. With the help of structure, describe the similarity and dissimilarity between galactose and
   • iii. Explain with an example, which carbon is considered the anomeric carbon. How can you distinguish between the alpha and beta type of anomers?
   • iv. Draw structure of D-glucose, convert it into L-glucose and comment on its steriochemical property with respect to whether they are two version of enantiomer
10. Q4 A) Define and explain: (Any five) 10 marks
11. Q4 B) Answer the following. (Any three) 15 marks
    • i. Explain buffer with examples
    • ii. Describe physical properties of water
    • iii. Describe in detail chemical reaction of amino acid with Sanger’s Reagent
    • iv. Discuss protein denaturation in detail
    • v. Write a note on lactose intolerance
    • vi. Explain glucose metabolism

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