Tag: GATE Biotechnology Previous Year Papers with Solutions

Q.36 Which combination of the following statements is CORRECT for cyanobacteria? P. They can perform oxygenic photosynthesis Q. Usually filamentous forms are involved in nitrogen fixation R. Nitrogen fixation occurs […]

Q.35 The value of the integral 0.9 ∫ 0 dx / ((1 − x)(2 − x)) is ____________________. Evaluating definite integrals involving rational functions is a common and important topic […]

Q.34 The Laplace transform F(s) of the function f(t) = cos(at), where a is constant, is ____________. (A) s2 / (s2 + a2) (B) a / (s2 + a2) (C) […]

Q.33 The positive Eigen value of the following matrix is ____________. | 2 1 | | 5 -2 |   The positive eigenvalue of the given 2×2 matrix is 3. […]

Q.32 Runs scored by a batsman in five one-day matches are 55, 75, 67, 88 and 15. The standard deviation is ____________. ✅ Correct Answer: 27.87 The standard deviation measures […]

Q.31 Which one of the following is the most suitable type of impeller for mixing high viscosity (viscosity > 105 cP) fluids? (A) Propeller (B) Helical ribbon (C) Paddle (D) […]

Q.30 The power required for agitation of non-aerated medium in fermentation is ________ kW. Operating conditions are as follows: Fermentor diameter = 3 m Number of impellers = 1 Mixing […]

Q.29 In dead-end filtration, rate of filtration is (A) directly proportional to the square root of pressure drop across the filter medium (B) inversely proportional to the pressure drop across […]

Q.28 A biological process is involved in the ________ treatment of industrial effluent. (A) primary (B) secondary (C) tertiary (D) quaternary Biological Process in Industrial Effluent Treatment: MCQ Answer and […]

Q.27 Fed batch cultivation is suitable for which of the following? P. Processes with substrate inhibition Q. Processes with product inhibition R. High cell density cultivation (A) P and Q […]