Description : The rate of most enzyme catalysed reactions changes with pH. As the pH increases, this rate (A) reaches a minimum, then increases (B) reaches a maximum, then decreases (C) increases (D) decreases
Last Answer : Answer : B
Description : Pick out the wrong statement. (A) Catalytic activity of enzyme catalysed reactions which is affected by temperature, pH value & chemical agents, is maximum at a temperature of about 45°C ... in enzyme catalysed reactions can be calculated by using the thermodynamic properties of substrates & prod
Last Answer : (C) Enzymes help in increasing the activation energy of the reaction
Description : The unit to measure the flow of water is - (1) Micro Mho (2) Ohm meter (3) Milli curie (4) Cusecs
Last Answer : (4) Cusecs Explanation: The unit to measure the flow of water is cusecs. Cusecs is short form of Cubic feet per second.
Description : A photodiode can switch its current ON or OFF in (a) nano second (b) milli second (c) micro second (d) centi second
Last Answer : (a) nano second
Description : The unit to measure the flow of water is (1) Micro Mho (2) Ohm meter (3) Milli curie (4) Cusecs
Last Answer : Cusecs
Description : The number of micro amperes in 2 milli amperes is? A.2 μA B.20 μA C.200 μA D.2,000 μA
Last Answer : The number of micro amperes in 2 milli amperes is? A.2 μA B.20 μA C.200 μA D.2,000 μA
Description : Station A uses 32 byte packets to transmit messages to station B using sliding window protocol. The round trip delay between A and B is 40 milli seconds and the bottleneck bandwidth on the path between A and B is 64 kbps. The optimal window size of A is (1) 20 (2) 10 (3) 30 (4) 40
Last Answer : (2) 10
Description : The carbon chain of fatty acids is shortened by 2 carbon atoms at a time. This involves successive reactions catalysed by 4-enzymes. These act the following order: (A) Acetyl CoA dehydrogenase, ... CoA dehydrogenase (D) Enoyl hydrase, β-OH acyl CoA dehydrogenase, acyl CoA dehydrogenase, thiolose,
Description : All the following statements about charging of tRNA are correct except (A) It is catalysed by amino acyl tRNA synthetase (B) ATP is converted into ADP and Pi in this reaction (C) The enzyme recognizes the tRNA and the amino acid (D) There is a separate enzyme for each tRNA
Description : Conversion of deoxyuridine monophosphate to thymidine monophosphate is catalysed by the enzyme: (A) Ribonucleotide reductase (B) Thymidylate synthetase (C) CTP synthetase (D) Orotidylic acid decarboxylase
Description : A cofactor in the conversion of dihydroorotate to orotic acid, catalysed by the enzyme dihydroorotate dehydrogenase is (A) FAD (B) FMN (C) NAD (D) NADP
Last Answer : Answer : C
Description : The synthesis of heme from protophyrin III is catalysed by the enzyme: (A) ALA synthase (B) Ferroreductase (C) Ferrooxidase (D) Ferrochelatase
Last Answer : Answer : D
Description : Conversion of uroporphyrinogen III to coprophyrinogen III is catalysed by the enzyme.: (A) Uroporphyrinogen decarboxylase (B) Coproporphyrinogen oxidase (C) Protoporphyrinogen oxidase (D) Ferrochelatase
Last Answer : Answer : A
Description : An allosteric enzyme is generally inhibited by (A) Initial substrate of the pathway (B) Substrate analogues (C) Product of the reaction catalysed by allosteric enzyme (D) Product of the pathway
Description : Synthesis of phosphatidylinositol by transfer of inositol to CDP diacylglycerol is catalysed by the enzyme: (A) CTP phosphatidate cytidyl transferase (B) Phosphatidate phosphohydrolase (C) CDP-diacylglycerol inositol transferase (D) Choline kinase
Description : Conversion of fructose to sorbitol is catalysed by the enzyme: (A) Sorbitol dehydrogenase (B) Aldose reductase (C) Fructokinase (D) Hexokinase
Description : Galactose 1-phosphate is converted to uridine diphosphate galactose, the reaction is catalysed by the enzyme: (A) Glactokinase (B) Galactose 1-phosphate uridyl transferase (C) Uridine diphospho galactose 4-epimerase (D) UDP glucose pyrophosphorylase
Description : In gluconeogensis, an allosteric activator required in the synthesis of oxaloacetate from bicarbonate and pyruvate, which is catalysed by the enzyme pyruvate carboxylase is (A) Acetyl CoA (B) Succinate (C) Isocitrate (D) Citrate
Description : Glucose 6-phosphate is converted to glucose 1-phosphate in a reaction catalysed by the enzyme phosphoglucomutase, which is (A) Phosphorylated (B) Dephosphorylated (C) Phosphorylated-dephosphorylated (D) Phosphorylated-dephosphorylatedrephosphorylated
Description : Riboflavin is a coenzyme in the reaction catalysed by the enzyme (A) Acyl CoA synthetase (B) Acyl CoA dehydrogenase (C) β-Hydroxy acyl CoA (D) Enoyl CoA dehydrogenase
Description : De novo synthesis of fatty acids is catalysed by a multi-enzyme complex which contains (A) One-SH group (B) Two-SH groups (C) Three-SH groups (D) Four-SH groups
Description : Transfer of the carbamoyl moiety of carbamoyl phosphate to ornithine is catalysed by a liver mitochondrial enzyme: (A) Carbamoyl phosphate synthetase (B) Ornithine transcarbamoylase (C) N-acetyl glutamate synthetase (D) N-acetyl glutamate hydrolase
Description : Template/lock and key theory of enzyme action is supported by (A) Enzymes speed up reaction (B) Enzymes occur in living beings and speed up certain reactions (C) Enzymes determine the direction of reaction (D) Compounds similar to substrate inhibit enzyme activity
Description : Pick out the correct statement. (A) Reactions with high activation energies are very temperature sensitive (B) Chemical equilibrium is a static state (C) A photochemical reaction is catalysed by ... occurs when the energy of the reacting molecule is less than the activation energy of the reaction
Last Answer : (A) Reactions with high activation energies are very temperature sensitive (B) Chemical equilibrium is a static state
Description : In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for (A) Fast reactions in catalyst of small pore diameter (B) Fast reaction in catalyst ... reactions in catalyst of small pore diameter (D) Slow reactions in catalyst of large pore diameter
Last Answer : (C) Slow reactions in catalyst of small pore diameter
Description : What happened to those pico projectors from a few years ago?
Last Answer : They have ones that you can use with an iphone, and plenty of regular ones, they just didnt take off so they aren’t in the news much.
Description : How far can you advance in Pico Date Sim 3?
Last Answer : I've been playing the beta version of pico date sim 3 however nothing much more is happening. How far can you go in the beta version?
Description : How do I submit masterpiece for Donna in Pico sim date 3?
Last Answer : Context: I've made masterpieces for Donna after she set the task for me however she hasn't seemed to notice that I've done those masterpieces. I occasionally see that it says my art is "Crappy" or "legendary" or something else however nothing changes when I go back to visit Donna.
Description : In a diploid cell before S-phase quantity of DNA is 20 pico gram (pg) after meiosis I what will be the quantity of DNA in each daughter cell ?
Last Answer : In a diploid cell before S-phase quantity of DNA is 20 pico gram (pg) after meiosis I what will be the quantity of ... 10 pg B. 20 pg C. 5 pg D. 40 pg
Description : The sub-multiple prefix 'pico' (p) means ____________. A. thousandth (10 to the -3rd power) B. millionth (10 to the -6th power) C. billionth (10 to the -9th power) D. trillionth (10 to the -12th power)
Last Answer : Answer: D
Description : A film is said to be thin if its thickness is (a) Much smaller than wavelength of light (b) Comparable with one wavelength of light (c) Of the order of nanometer (10-9 m) (d) Of the order of Pico meter (10-12 m)
Last Answer : (b) Comparable with one wavelength of light
Description : Is it possible to become a milli-lurvian from one question?
Last Answer : You must answer question in a thoughtful and original manner and ask unique and clever questions.
Description : For the coagulation of 200 mL of `As_(2)S_(3)` solution, 10 mL of 1 M NaCl is required. What is the coagulating value (number of milli moles of solute
Last Answer : For the coagulation of 200 mL of `As_(2)S_(3)` solution, 10 mL of 1 M NaCl is required. What is the coagulating ... A. `200` B. `100` C. `50` D. `25`
Description : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) of necessary shunt will be
Last Answer : A milli voltmeter of 25 milli volt range is to be converted into an ammeter of 25 ampere range. The value (in ohm) ... 001` B. `0.01` C. 1 D. `0.05`
Description : Abu Bakr Al-Baghdadi is the self-styled leader of: A. AI-Qaeda B. Hizbullah C. Shabab-e-Milli D. DAESH
Last Answer : ANSWER: D
Description : The sub-multiple prefix 'milli' (m) means ____________. A. one thousandth (10 to the -3rd power) B. one millionth (10 to the -6th power) C. one billionth (10 to the -9th power) D. one trillionth (10 to the -12th power)
Last Answer : Answer: A
Description : The opening of a 200 mesh screen (Taylor series) is (A) 0.0074 cm (B) 0.0074 mm (C) 0.0047 cm (D) 74 milli-micron
Last Answer : (A) 0.0074 cm
Description : A metabolic pathways is a (A) Route taken by chemicals (B) Sequence of enzyme facilitated chemical reactions (C) Route taken by an enzyme from one reaction to another (D) Sequence of origin of organic molecules
Description : The function of an enzyme is to (A) Cause chemical reactions that would not otherwise take place (B) Change the rates of chemical reactions (C) Control the equilibrium points of reactions (D) Change the directions of reactions
Description : Which of the following regulatory reactions involves a reversible covalent modification of an enzyme? (A) Phosphorylation of serine OH on the enzyme (B) Allosteric modulation (C) Competitive inhibition (D) Non-competitive inhibition
Description : Isoenzymes are (A) Chemically, immunologically and electrophoretically different forms of an enzyme (B) Different forms of an enzyme similar in all properties (C) Catalysing different reactions (D) Having the same quaternary structures like the enzymes
Description : In EDSAC, an addition operation was completed in _____ micro seconds. (A) 4000 (B) 3000 (C) 2000 (D) 1500
Last Answer : (D) 1500
Description : Suppose that the one-way propagation delay for a 100 Mbps Ethernet having 48-bit jamming signal is 1.04 micro-seconds. The minimum frame size in bits is: a. 112 b. 160 c. 208 d. 256
Last Answer : d. 256
Description : To determine the efficiency of an algorithm the time factor is measured by: (A) Counting micro seconds (B) Counting number of key operations (C) Counting number of statements (D) Counting kilobytes of algorithm
Last Answer : (B) Counting number of key operations
Description : Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also ... memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec
Last Answer : Answer: C Explanation: T = Ninstr x 1µs + 15,000 x 2,000 µs = 60s Ninstr x 1µs = 60,000,000 µs - 30,000,000 µs = 30,000,000 µs Ninstr = 30,000,000 The number of instruction ... doesn't mean that the program runs twice as fast as on the first system. Here, the performance increase is of 25%.
Description : Replication of nuclear DNA in mammals is catalysed by (A) DNA polymerase α (B) DNA polymerase β (C) DNA polymerase γ (D) DNA polymerase III
Description : In mammals, synthesis of mRNA is catalysed by (A) RNA polymerase I (B) RNA polymerase II (C) RNA polymerase III(D) RNA polymerase IV
Description : The first reaction unique to purine nucleotide synthesis is catalysed by (A) PRPP synthetase (B) PRPP glutamyl amido transferase (C) Phosphoribosyl glycinamide synthetase (D) Formyl transferase
Description : The α-amino group of the new amino acyl tRNA in the A site carries out a nucleophilic attack on the esterified carboxyl group of the peptidyl tRNA occupying the P site. This reaction is catalysed by (A) DNA polymerase (B) RNA polymerase (C) Peptidyl transferase (D) DNA ligase
Description : Phosphorylation of adenosine to AMP is catalysed by (A) Adenosine kinase (B) Deoxycytidine kinase (C) Adenylosuccinase (D) Adenylosuccinate synthetase