BSc Biochemistry Sem I 2022 2023 Dec 2023 BIOCHEMISTRY I Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q1 A) State True or False: 4 marks
   • (i) Boiling point of water is
   • (ii) Potassium chloride is a weak electrolyte
   • (iv) On the pH scale, we can measure pH from 0 (very acidic) to 14 (very alkaline)
2. Q1 B) Answer of the following: (Any three) 9 marks
   • (i) Explain Van der Waals interactions
   • (ii) What are polar and nonpolar compounds?
   • (iii) Write a note on pH
   • (iv) Write a note on hydrophobic interactions
   • (v) Elaborate on buffer with the help of an example
   • (vi) Write a note on hydrophilic interactions
3. Q1 C) Answer of the following: (Any two) 12 marks
   • (i) Describe the role of water in life
   • (ii) Describe the relationship between pH and pOH
   • (iii) Explain the role of entropy in the dissolution of solutes in water
   • (iv) Write on amphipathic compounds
4. Q2 A) State True or False: 4 marks
   • (i) There are 20 amino acids that act as monomers for producing common proteins
   • (ii) Essential amino acids are not synthesized in animals
   • (iii) Proteins is not a part of every cell, tissue, and organ in our body
   • (iv) Protein is not found in meat, poultry and fish
5. Q2 B) Answer the following: (Any three) 9 marks
   • (i) Define Peptides
   • (ii) Draw structure of both Valine and Glutamine
   • (iii) Write in brief about Melting point of proteins Amino acids exist both in D and L forms
   • (v) Explain Globular proteins
   • (vi) | What are non-essential amino acids? Answer the following: (Any two) 12
   • (i) Elaborate on any four physical properties of amino acids
   • (ii) Describe in detail the chemical reaction of amino acid with Edman’s reagent
   • (iii) Explain the Tertiary structure of protein with an example
   • (iv) Explain Primary and Secondary structure of protein in detail VCD/ FYBSC BIOCHEMISTRY I 100 marks
6. Q3 A) State True or False: _ f (i) is a constituent of lactose \ (ii) | Monosaccharides are joined together by peptide bond 4 marks
   • (iii) is a disaccharide
7. Q3 B) Answer the following: (Any three) 9 marks
   • (i) the significance of carbohydrates
   • (ii) Write a short note on monosaccharide
   • (iii) | Draw the structure of glycogen
   • (iv) Write a short note on Oligosaccharide
   • (v) Explain the structure, significance and occurrence of Maltose
   • (vi) the structure, significance and occurrence of Lactose
8. Q3 C) Answer the following: (Any two) 12 marks
   • (i) Write a short note on carbohydrates Draw the structure and mention the significance of a) Chitin and b) Glycogen
   • (iii) Explain the structure, occurrence and significance of a) Sucrose and
   • b) Galactose
   • (iv) Draw the structure and significance of: a) Ribose b)Mannose and c)Fructose
9. Q4 A) Define and explain: (Any five) 10 marks
   • (i) bond (ii)
   • (iv) Dalton
   • (v) Beta sheets
   • (vii) Polysaccharide
10. Q4 B) Write short notes on: (Any three) 15 marks
    • (i) Write a note on interaction of biomolecules in aqueous solution
    • (ii) Explain the concept of mole and molar with an example
    • (iii) | Describe in detail the chemical reaction of acids with Ninhydrin reagent
    • (iv) Explain protein denaturation in detail
    • (v) Write a short noie on disaccharides
    • (vi) Write a short note on formation of glycosidic bond

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