BSc Sem III 2023 2024 2024 BIOCHEM I Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2. Figures to the right indicate full marks

1. Q1 A) State True or False: 4 marks
   • (i) Buffers resist the change in pH
   • (ii) pI stands for isoelectric point
   • (iii) In buffers both components decrease and increase at same time
   • (iv) pl is not used in protein separation
2. Q1 B) Write short notes on: (Any three) 9 marks
   • (i) Formulas used for calculating pH and pOH
   • (ii) pK
   • (iii) Titration curve of lysine
3. Q1 C) Answer of the following: (Any two) 12 marks
   • (i) Write a short note on Henderson —Hasselbalch equation
   • (ii) Explain the titration curve of glycine
   • (iii) Write a short note on any two buffer systems Write a short note on following:
4. Q2 A) State True or False: 4 marks
   • (i) Colloids do not precipitate on addition of an electrolyte
   • (ii) Viscosity of the sucrose solution is less than water solutions have higher surface area than suspension solutions
5. Q2 B) Answer the following: (Any three) 9 marks
   • (i) Explain significance of osmosis
   • (ii) Explain the tyndall effect with an
   • (iii) What is Molarity and molality?
   • (iv)Explain factors affecting surface tension
   • (v) Explain renal dialysis do you mean by volume percentage? What is the volume percentage if
   • 25.5 grams of NaCI dissolved in 250 ml solution
6. Q2 C) Answer the following: (Any two) Explain the mechanism of osmosis 12 marks
   • (ii) Elaborate on properties of colloids Normality, also what is the normality of the following | L aqueous with 55 gram NaOH dissolved in it? VCD/ SEM Ill BIOCHEMISTRY I 3 HRS 100 marks is the difference between Molarity and Normality? Write any two uses of
7. Q3 A) State True or False: 4 marks
   • (i) Light can be focused by adjusting the condenser (ili) The magnifying power of the compound microscope is the product of the magnification of the objective lens and eyepiece
   • (iv) The use of single convex lenses or groups of lenses is found in fluorescent lamps
8. Q3 B) Write short notes on: (Any three) 9 marks
   • (i) Compound microscope
   • (iii) Principles of microscopy
   • (vi) Fluorescent
9. Q3 C) Answer the following: (Any two) 12 marks
   • (i) What are the types of microscopes?
   • (ii) What is differential interference contrast? (ili) What are the principles of microscopy?
   • (iv) What is electron microscopy and its types?
10. Q4 A) Define and explain: (Any five) 10 marks
11. Q4 B) Write Short notes on: (Any three) Explain in brief about Sorenson's titration 15 marks
    • (ii) Write a short note on the titration curve of aspartate
    • (iv) Role of bile in digestion
    • (v) Light Microscope

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