Tag: dbt jrf pyq 2021

91. Given below are two statements: one is labelled as Assertion A and the other is labelledas Reason R Assertion A: Gene Sequences are aligned using identity matrices instead of […]

79. Doubling the substrate concentration in the inlet of a CSTR (with cells following Monodgrowth kinetics) will, after reaching the new steady state, lead to: (a) Higher biomass concentration but […]

78. In an anaerobic fermentation producing ethanol, the ethanol yield (Yp/s) – (a) Decreases with increasing biomass yield (Yx/s) (b) Increases with increasing biomass yield (Yx/s) (c) Initially increases & […]

77. In a fed batch culture the feed rate of concentrated substrate is increased with timewhile the RPM of the impeller is kept constant. You will most likely observe one […]

76. Scaling up a reactor while keeping the power consumption per unit volume constant will lead to: (a) Decrease in RPM of the impeller of the larger reactor (b) Holding […]

75. Given below are two statements: one is labelled as Assertion A and the other is labelledas Reason R Assertion A: In a plate & frame filter operated under constant […]

74. Given the pseudoplastic rheology of fungal fermentation broth, we can expect that: (a) The viscosity of the fungal broth to be uniformly high in the culture (b) The viscosity […]

73. To have an extended late log/ stationary phase so that secondary metabolites may beproduced, you will prefer to use: (a) Batch reactor (b) Fed batch reactor (c) Fluidized bed […]

72. In a two stage CSTR in series, the first reactor runs at a dilution rate D1 <µmax and the inletsubstrate concentration (S0) is two-times greater than Ks, then: (a) […]

71. Two immobilized enzyme columns with equal enzyme loading and same column volumeare run at the same feed rate and same inlet substrate concentration. It is observedthat the taller and […]