What is the exam pattern and passing mark for GTU Biochemical Engineering (3160512)?

The GTU theory examination carries 70 total marks with a duration of 2.5 Hours. Minimum passing criteria is 23 marks (33%). The paper consists of 5 main questions with official marking breakdown and internal choices.

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The official GTU question paper PDF is linked directly from Gujarat Technological University's official examination archive. You can view the full paper online or download the original file.

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Gujarat Technological UniversitySummer 2026 examination

GTU 3160512 Biochemical Engineering Summer 2026 Question Paper & PDF

B.E. · Chemical Engineering · Semester 6 · Subject code 3160512

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Total: 70 marks
To pass: 23 marks (33%)
Duration: 2.5 Hours 10:30 AM – 1:00 PM
Questions: 5 with internal choice

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Q.1

14 Marks

(a)

3 marks

List out the process in Biochemical engineering, which required knowledge of other engineering field.

(b)

4 marks

List out the product of industrial importance involved the use of fermenter. How the fermenter is operated under controlled conditions in industry?

(c)

7 marks

Explain the reason behind higher selectivity of enzyme catalyzed reaction over conventional chemical reaction. List out factor affecting activity of enzymatic reaction.

Q.2

14 Marks

(a)

3 marks

What are major sources of carbon, nitrogen, and phosphorus in industrial fermentations?

(b)

4 marks

Compare between Monosaccharides, Disaccharides and Polysaccharides.

(c)

7 marks

What is a major constituent of lipid? Are steroid and fat considered in lipid? What is the role of steroid and fat in living organism?

(c)

7 marks

What is denaturation of protein? List out the five major biological functions of proteins.

Q.3

14 Marks

(a)

3 marks

List out three industrial enzymes, its source and its application.

(b)

4 marks

What is the effect of temperature, pH and concentration of substrate on enzyme activity?

(c)

7 marks

Explain the following plots for evaluation of parameters

1)Lineweaver–Burk plot

2)Eadie–Hofstee plot

3)Hanes–Woolf plot.

(a)

3 marks

Write assumption involved in enzyme kinetics for the Michaelis- Menten approach.

(b)

4 marks

List out merit of immobilization techniques for enzymatic reaction.

(c)

7 marks

Differentiate between competitive and non-competitive inhibition.

Q.4

14 Marks

(a)

3 marks

Define the product and substrate inhibition with a suitable example?

(b)

4 marks

Briefly discuss the following:

1)Cell death kinetics

2)Oxygen demand

(c)

7 marks

Explain with a neat diagram the characteristics equation of continuous culture.

(a)

3 marks

List out the types of agitator used and its application in fermenter.

(b)

4 marks

Explain the importance of product recovery in biochemical synthesis? List out the important product recovery operation.

(c)

7 marks

List out the utilities of fermenter plant. Explain the importance of media preparation in fermenter?

Q.5

14 Marks

(a)

3 marks

Define the following:

1)Oxygen uptake rate

2)Fluid rheology.

(b)

4 marks

Give the merit and demerit of continuous culture over batch culture.

(c)

7 marks

Discuss the various methods to determine the KLa value? List out the factor affecting it.

(a)

3 marks

Discuss the use of valve and steam trap in fermentation unit.

(b)

4 marks

What is electrophoresis? Explain principal involved in electrophoresis.

(c)

7 marks

What is cell disruption. Discuss the Chemical and biological methods involved in it.

More Biochemical Engineering papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202570 marks · 5 questions

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About this paper

Official Gujarat Technological University (GTU) examination paper for Biochemical Engineering (Summer 2026, B.E. · Chemical Engineering, Sem 6). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

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