GATE XL format:nat PYQs & Answers — Page 22 — Exam Papers

Questions 211–220 of 244. Imported answers require independent review unless marked reviewed.

Topic practice 244 questionsPage 22 of 25

Adult male Wistar rats were fed with a protein based diet. Total 150 g of protein was ingested per animal. If the average weight increased from 110 g to 350 g after the end of experiment, the Protein efficiency ratio of the given protein would be ______. (up to two decimal points).

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The initial moisture content of a food on wet basis is 50.76%. Its moisture content (%) on dry basis is ______.(up to two decimal points)

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The oxygen transmission rate through a 2.54 x 10⁻³ cm thick low density polyethylene film with air on one side and inert gas on the other side is 3.5 x 10⁻⁶ mL cm⁻² s⁻¹. Oxygen partial pressure difference across the film is 0.21 atm. The permeability coefficient of the film to oxygen is ______ x 10⁻¹¹ mL (STP) cm cm⁻² s⁻¹ (cm Hg)⁻¹.

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Ambient air at 30°C dry bulb temperature and 80% relative humidity was heated to a dry bulb temperature of 80°C in a heat exchanger by indirect heating. The amount of moisture gain (g kg⁻¹ dry air) during the process would be ______.

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For an enzyme catalyzed reaction S → P, the kinetic parameters are: [S] = 40 μM, V₀ = 9.6 μM s⁻¹ and Vₘₐₓ = 12.0 μM s⁻¹. The Kₘ of the enzyme in μM will be ______.(up to one decimal points)

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A microbial sample taken at 10 AM contained 1x10⁵ CFU/mL. The count reached to 1x10¹⁰ CFU/mL at 8 PM of the same day. The growth rate (h⁻¹) of the microorganism would be ______.(up to two decimal points)

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The rate of heat transfer per unit area from a metal plate is 1000 W m⁻². The surface temperature of the plate is 120°C and ambient temperature is 20°C. The convective heat transfer coefficient (W m⁻² °C⁻¹) using the Newton’s law of cooling will be ______.

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One gram of a protein is dissolved in one liter of water. The resulting solution exerts an osmotic pressure of 1.4 Torr at 298 K. Assuming that the protein does not ionize in solution, the molecular weight of the protein is __________ g mol⁻¹. (R = 0.082 L atm mol⁻¹ K⁻¹)

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The number of fragments generated when the peptide ‘ANDCQGKFMILKPDTRYVSFMRA’ is subjected to complete digestion with trypsin are ......

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The duration of DNA synthesis (S phase) in plant cells is 11 h and the DNA is replicated at a rate of 100 bp/s/fork. A plant species has about 3.0×10¹⁰ bp DNA/genome. The number of bidirectional forks per genome required for replication will be …………………

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