question_answer2) A body is thrown vertically up with certain initial velocity. The potential and kinetic energies of the body are equal at a point P in its path. If the same body is thrown with double the velocity upwards, the ratio of potential and kinetic energies of the body when it crosses the same point, is
question_answer3) The apparent weight of a person inside a lift is \[{{w}_{1}}\]when lift moves up with a certain acceleration and is\[{{w}_{2}}\]when lift moves down with same acceleration. The weight of the person when lift moves up with constant speed is
question_answer4) In the figure, pendulum bob on left side is pulled aside to a height h from its initial position. After it is released it collides with the right pendulum bob at rest, which is of same mass. After the collision the two bobs stick together and raise to a height
question_answer5) The radius of gyration of a rod of length L and mass M about an axis perpendicular to its length and passing through a point at a distance L/3 from one of its ends is
question_answer6) A ball of mass 0.6 kg attached to a light inextensible string rotates in a vertical circle of radius 0.75 m such that it has a speed of \[5\text{ }m{{s}^{-1}}\]when the string is horizontal. Tension in string when it is horizontal on other side is \[(g=10\,m{{s}^{-2}})\]
question_answer7) A body of mass m is raised from the surface of the earth to a height nR (R = radius of earth). Magnitude of the change in the gravitational potential energy of the body is (g = acceleration due to gravity on the surface of earth)
question_answer8) The displacement of a particle of mass 3 g executing simple harmonic motion is given by \[Y=3\sin (0.2t)\]in SI units. The kinetic energy of the particle at a point which is at a distance equal to\[\frac{1}{3}\]of its amplitude from its mean position is
question_answer9) A liquid drop of radius R breaks into 64 tiny drops each of radius r. If the surface tension of the liquid is. T, then the gain in energy is
question_answer10) Two rods of different materials with coefficients of linear thermal expansion\[{{\alpha }_{1}},{{\alpha }_{2}}\] and Young's moduli\[{{Y}_{1}}\]and\[{{Y}_{2}}\]respectively are fixed between two rigid walls. They are heated to have the same increase in temperature. If the rods do not bend and if then the thermal stresses developed in the two rods will be equal when\[{{Y}_{1}}:{{Y}_{2}}\]is equal to
question_answer12) The power of a black body at temperature 200 K is 544 W. Its surface area is \[(\sigma =5.67\times {{10}^{-8}}W{{m}^{-2}}{{K}^{-4}})\]
question_answer13) A uniform wire of linear density\[0.004\text{ }kg-{{m}^{-1}}\]when stretched between two rigid supports with a tension \[3.6\times {{10}^{2}}N,\] resonates with a frequency of 420 Hz. The next harmonic frequency with which the wire resonates is 490 Hz. The length of the wire in metres is
question_answer14) The velocities of light in two different mediums are\[2\times {{10}^{8}}m{{s}^{-1}}\]and\[2.5\times {{10}^{8}}m{{s}^{-1}}\]respectively. The critical angle for these mediums is
question_answer15) A diverging meniscus lens of 1.5 refractive index has concave surfaces of radii 3 and 4 cm. The position of the image, if an object is placed 12 cm in front of the lens, is
question_answer16) A bar magnet suspended freely in a uniform magnetic field is vibrating with a time period of 3 s. If the field strength is increased to 4 times of the earlier field strength, the time period will be (in seconds)
question_answer18) Three charges\[1\mu C,1\mu C\]and\[2\mu C\]are kept at the vertices A, B and C of an equilateral triangle force on the charge at C is
question_answer19) Two unknown resistances\[X\]and Y are connected to left and right gaps of a metre bridge and the balancing point is obtained at 80 cm from left. When a\[10\,\Omega \]resistance is connected in parallel to\[X\]the balancing point is 50 cm from left. The values of\[X\]and Y respectively are
question_answer20) The current in a circuit containing a battery connected to 20 resistance is 0.9 A. When a resistance of 70 is connected to the same battery, the current observed in the circuit is 0.3 A. Then the internal resistance of the battery is
question_answer21) The emf induced in a secondary coil is 20000 V when the current breaks in the primary coil. The mutual inductance is 5 H and the current reaches to zero in\[{{10}^{-4}}s\]in the primary. The maximum current in the primary before it breaks is
question_answer22) Two coils are wound on the same iron rod so that the flux generated by one passes through the other. The primary coil has\[{{N}_{p}}\]turns in it and when a current 2 A flows through it the flux in it is\[2.5\times {{10}^{-4}}Wb\]. If the secondary coil has 12 turns the mutual inductance of the coils is (assume the secondary coil is in open circuit)
question_answer23) The velocity of the most energetic electrons emitted from a metallic surface is doubled when the frequency v of the incident radiation is doubled. The work function of this metal is
question_answer24) A proton and an alpha particle are accelerated through the same potential difference. The ratio of the wavelengths associated with proton and alpha particle respectively is
question_answer25) In a transistor circuit the base current changes from\[30\text{ }\mu A\]to\[90\text{ }\mu A\]. If the current gain of the transistor is 30, the change in the collector current is
question_answer26) In Young's double slit experiment, white light is used. The separation between the slits is b. The screen is at a distance\[d(d>>b)\]from the slits. Some wavelengths are missing exactly in front of one slit. These wavelengths are (1) \[\frac{{{b}^{2}}}{d}\] (2) \[\frac{2{{b}^{2}}}{d}\] (3) \[\frac{{{b}^{3}}}{3d}\] (4) \[\frac{2{{b}^{2}}}{3d}\]
question_answer27) A plane mirror reflecting a ray of incident light is rotated through an-abgle\[\theta \]about an axis through the point of incidence in the plane of the mirror perpendicular to the plane of incidence, then (1) the reflected ray does not rotate (2) the reflected ray rotates through angle\[2\theta \] (3) the reflected ray rotates through an angle\[\theta \] (4) the incident ray is fixed
question_answer28) An X-ray tube is operating at 50 kV and 20 mA. The target material of the tube has a mass of\[1.0\,kg\]and specific hea\[495\,Jk{{g}^{-10}}{{C}^{-1}}\]. One percent of the supplied electric power is converted into X-rays and the entire remaining energy goes into heating the target. Then (1) a suitable target material must have a high melting temperature (2) the average rate of rise of temperature of target would be\[2{}^\circ C/s\] (3) the minimum wavelength of the X-rays emittled is about\[0.25\times {{10}^{-10}}m\] (4) a suitable target material must have low thermal conductivity
question_answer29) In an AC circuit the power factor (1) is unity when the circuit contains as ideal resistance only (2) is zero when the circuit contains an ideal inductance only (3) is zero when the circuit contains an ideal resistance only (4) is unity when the circuit contains an ideal inductance only
question_answer30) Two different coils have self-inductance\[{{L}_{1}}=8\] \[mH,\text{ }{{L}_{2}}=2\text{ }mH\]. The current in one coil is increased at a constant rate. The current in the second coil is also increased at the same rate. At a certain instant of time the power given to the coil is same. At that time the current, the induced voltage and the energy stored in the first coil are\[{{i}_{1}},{{v}_{1}}\]and\[{{w}_{1}}\]respectively. Corresponding values for the second coil at the same instant are\[{{i}_{1}},{{v}_{2}}\]and \[{{w}_{2}}\].Then (1) \[\frac{{{i}_{1}}}{{{i}_{2}}}=\frac{1}{4}\] (2) \[\frac{{{w}_{2}}}{{{w}_{1}}}=4\] (3) \[\frac{{{v}_{2}}}{{{v}_{1}}}=\frac{1}{4}\] (4) \[\frac{{{i}_{1}}}{{{i}_{2}}}=48\]
question_answer31) Which of the following statements are true about the magnetic susceptibility\[{{\chi }_{m}}\]of paramagnetic substance? (1) Value of\[{{\chi }_{m}}\]is inversely proportional to the absolute temperature of the sample (2)\[{{\chi }_{m}}\]is positive at all temperature (3)\[{{\chi }_{m}}\]is negative at all temperature (4)\[{{\chi }_{m}}\]does not depend on the temperature of the sample
question_answer32) \[{{H}^{+}},H{{e}^{+}}\]and\[{{O}^{++}}\]ions having same kinetic energy pass through a region of space filled with uniform magnetic field B directed perpendicular to the velocity of ions. The mass of the ions\[{{H}^{+}},H{{e}^{+}}\]are\[{{O}^{++}}\]respectively in the ratio 1: 4:16. As a result (1) \[{{H}^{+}}\]ion will be deflected most (2)\[{{O}^{++}}\]ions will be deflected least (3)\[H{{e}^{+}}\]and\[{{O}^{++}}\]ions will suffer same deflection (4) All ions will suffer the same deflection
question_answer33) A steel wire has a resistance twice that of an aluminium wire. Both of them are connected with a constant voltage supply. More that will be dissipated in (1) steel wire when both are connected in parallel (2) steel wire when both are connected in series (3) aluminium wire when both are connected in series (4) aluminium wire when both are connected in parallel
question_answer34) Five equal resistances each of value R are connected in a form shown. The equivalent resistance of the network (1) between the points B and D is\[\frac{R}{2}\] (2) between the points A and C is R (3) between the points B and D is R (4) between the points A and C is \[\frac{R}{2}\]
question_answer35) Consider the points lying on a straight line joining two fixed opposite charges. Between the charges there is (1) no point where electric field is zero (2) only one point where electric field is zero (3) only one point where potential is zero (4) no point where potential is zero
question_answer36) A transverse sinusoidal wave of amplitude a, wavelength\[\lambda \]and frequency v is travelling on a streched string. The maximum speed of any point on the string is v/10, where v is the speed of the propagation of the wave. If \[a={{10}^{-3}}m\]and\[v=10\text{ }m{{s}^{-1}},\]then\[\lambda \]and v are given by (1) \[\lambda =2\pi \times {{10}^{-2}}m\] (2) \[\lambda ={{10}^{-3}}m\] (3) \[v=\frac{{{10}^{3}}}{2\pi }Hz\] (4) \[v={{10}^{4}}Hz\]
question_answer37) Three simple harmonic motions in the same direction having the same amplitude a and same period are superposed. If each differs in phase from the next by\[45{}^\circ ,\] then (1) the resultant amplitude is\[(1+\sqrt{2})a\] (2) the phase of the resultant motion relative to the first is\[90{}^\circ \] (3) the energy associated with the resulting motion is\[(3+2\sqrt{2})\]times the energy associated with any single motion (4) the resulting motion is not simple harmonic
question_answer38) A gas in container A is in thermal equilibrium with another gas in container B both contains equal masses of the two gases in the respective containers. Which of the following can be true? (1) \[{{p}_{A}}{{V}_{A}}={{p}_{B}}{{V}_{B}}\] (2) \[{{p}_{A}}={{p}_{B}},{{V}_{A}}\ne {{V}_{B}}\] (3) \[\frac{{{p}_{A}}}{{{V}_{A}}}=\frac{{{p}_{B}}}{{{V}_{B}}}\] (4) \[{{p}_{A}}\ne {{p}_{B}},{{V}_{A}}={{V}_{B}}\]
question_answer39) The tank is filled upto a height h with a liquid and is placed on a platform of height h from the ground. To get maximum range\[{{x}_{m}}a\]small hole is punched at a distance of y from the free surface of the liquid. Then (1) \[{{x}_{m}}=2h\] (2) \[{{x}_{m}}=1.5h\] (3) \[y=h\] (4)\[y=0.75\,h\]
question_answer40) An air bubble in a water tank rises from the bottom to the top. Which of the following statements are true? (1) Bubble rises upwards because pressure at the bottom in less than that at the top (2) Bubble rises upwords because pressure at the bottom is greater than that at the top (3) As the bubble rises its size decreases (4) As the bubble rises its size increases
question_answer41) The radius and mass of earth are increased by 0.5%.Which of the following are true at the surface of earth? g will decrease Escape velocity will remain unchanged Potential energy will remain unchanged g will increase
question_answer42) One solid sphere and a disc of same radius are falling along an inclined plane without slip. One reaches earlier than the other due (1) different size (2) different radius of gyration (3) different friction (4) different moment of inertia
question_answer43) A ball hits a floor and rebounds after an inelastic collision. In this case (1) the total momentum of the ball and the earth is conserved (2) the total energy of the ball and the earth is conserved (3) the momentum of the ball just after the collision is same as that just before the collision (4) the machanical energy of the ball remains the same during the collision
question_answer44) Trajectories of two projectiles are shown in figure. Let\[{{T}_{1}}\]and\[{{T}_{2}}\]be the time periods and\[{{u}_{1}}\] and\[{{u}_{2}}\]their speeds of projection. Then (1) \[{{T}_{2}}>{{T}_{1}}\] (2) \[{{T}_{1}}={{T}_{2}}\] (3) \[{{u}_{1}}>{{u}_{2}}\] (4) \[{{u}_{1}}<{{u}_{2}}\]
question_answer45) When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts (1) in the backward direction on the front wheel and in the forward direction on the rear wheel (2) in the forward direction on the front wheel and in the backward direction on the rear wheel (3) in the backward direction on both front and rear wheels (4) in the forward direction on both front and rear wheels
question_answer46) Figure shows the displacement of a particle going along the X-axis as a function of time. The force acting on the particle is zero in the region (1) AB (2) BC (3) CD (4) DE
question_answer47) Which of the following pairs have same dimensions? (1) Angular momentum and work (2) Torque and work (3) Energy and Young's modulus (4) Light year and wavelength
question_answer48) The motion of a body is given by equation \[\frac{d\,v(t)}{dt}=6.0-3v(t),\]where\[v(t)\]is the speed in m/s and t in sec. If body was at rest at\[t=0\] (1) the terminal speed is 2.0 m/s (2) the speed varies with the time as \[v(t)=2(1-{{e}^{-3t}})m/s\] (3) the magnitude of initial acceleration is\[6.0\text{ }m/{{s}^{2}}\] (4) the speed is 0.1 m/s when the acceleration if half the initial value
question_answer50) A radioactive substance emits (1) electromagnetic radiations (2) electron revolving around the nucleous (3) charged particles (4) neutral particles
question_answer55) The value of Planck's constant is\[6.63\times {{10}^{-34}}\] Js. The velocity of light is\[3.0\times {{10}^{8}}m{{s}^{-1}}\]. Which value is closest to the wavelength (in nm) of a quantum of light with frequency of\[8\times {{10}^{-1}}{{s}^{-1}}\]?
question_answer59) 250 mL of a\[N{{a}_{2}}C{{O}_{3}}\]solution contains 2.65 g of\[N{{a}_{2}}CO\text{ }3.10\text{ }mL\]of this solution is added to \[x\text{ }mL\]of water to obtain\[0.001\text{ }M\text{ }N{{a}_{2}}C{{O}_{3}}\]solution. The value of\[x\]is (molecular weight of \[N{{a}_{2}}C{{O}_{3}}={{10}^{6}}\])
question_answer69) The solubility in water of a sparingly soluble salt\[A{{B}_{2}}\]is\[1.0\times {{10}^{-5}}mol\text{ }{{L}^{-1}}\]. Its solubility product will be
question_answer70) The standard emf of a cell, involving one electron change is found to be 0.591 V at\[\,25{}^\circ C\]. The equilibrium constant of the reaction is (\[F=96500\text{ }C\text{ }mo{{l}^{-1}}\])
question_answer71) End product of the following reaction sequence is \[C{{H}_{3}}C{{H}_{2}}COOH\xrightarrow[red\,P]{C{{l}_{2}}}X\xrightarrow[KOH]{Alcoholic}Y\]
question_answer72) Consider following two reactions \[A\xrightarrow[{}]{{}}Product,-\frac{d[A]}{dt}={{k}_{1}}{{[A]}^{0}}\] \[B\xrightarrow[{}]{{}}Product,-\frac{d[B]}{dt}={{k}_{2}}{{[B]}^{0}}\] \[{{k}_{1}}\]and\[{{k}_{2}}\]are expressed in terms of molarity\[(mol\text{ }{{L}^{-1}})\]and time\[({{s}^{-1}})\]as
question_answer76) For the reaction \[{{C}_{6}}{{H}_{4}}(g)+{{H}_{2}}{{C}_{2}}{{H}_{6}};\]\[\Delta H=-32.7\,k\,cal\] The equilibrium concentration of\[{{C}_{2}}{{H}_{4}}\]can be increased by (1) decreasing the temperature (2) decreasing the pressure (3) removing some \[{{C}_{2}}{{H}_{6}}\] (4) removing some\[{{H}_{2}}\]
question_answer79) A solution containing components A and B exhibits positive deviation from Raoult?s law only when (1) \[\Delta {{V}_{mixing}}=+ve\] (2) \[\Delta {{H}_{mixing}}=-ve\] (3)\[A-B\]attraction forces\[<A-A\]and\[B-B\] attraction forces. (4)\[A-B\]attraction forces\[>A-A\]and\[B-B\] attraction forces.
question_answer80) Which of the following compounds will give a yellow precipitate with iodine and alkali? (1) 2-hydroxy propane (2) Acetophenone (3) Methyl acetate (4) Acetamide
question_answer82) Diethyl ether is obtained by the reaction of (1) sodium ethoxide with methyl iodide (2) sodium ethoxide with ethyl chloride (3) ethanol with red phosphorus (4) ethanol with cone.\[{{H}_{2}}S{{O}_{4}}\]
question_answer83) If\[C{{l}_{2}}\]is passed into hot\[NaOH\]solution, oxidation number of chlorine changes from (1) 0 to + 5 (2) 0 to -1 (3) 0 to +1 (4) 0 to +7
question_answer84) Which of the following statements are true for hydrophilic solution? (1) They do not require electrolytes for stability. (2) Their coagulation is irreversible. (3) Their surface tension is usually lower than that of dispersion medium. (4) Their viscosity is of the order of that of water.
question_answer85) \[{{H}^{+}},{{D}^{+}}\] and\[{{T}^{+}}\] differ in all except in (1) number of electrons (2) number of neutrons (3) electronic configuration (4) ionic mass
question_answer89) A new\[CC\]bond formation is possible in (1) Cannizaro's reaction (2) Friedel-Craft's reaction (3) Clemmensen reduction (4) Reimer-Tiemann reaction
question_answer90) Number of atoms in 560 g of Fe (atomic mass\[56\text{ }g\text{ }mo{{l}^{-1}}\]) is (1) twice that of 70 g N (2) half that of 20 gH (3) half that of 70 gC (4) twice that of 40 g N
question_answer91) On mixing a certain alkane with chlorine and irradiating it with ultraviolet light, it forms two monochloro derivatives. The alkane could be (1) propane (2) pentane (3) iso-butane (4) neo-pentane
question_answer92) Which of the following can show coordination isomerism? (1) \[[Cu{{(N{{H}_{3}})}_{4}}][PtC{{l}_{4}}]\] (2) \[{{[Fe{{(N{{H}_{3}})}_{6}}]}_{2}}{{[Pt{{(CN)}_{6}}]}_{3}}\] (3) \[[Co{{(N{{H}_{3}})}_{6}}][Cr{{({{C}_{2}}{{O}_{4}})}_{3}}]\] (4) \[[Pt{{(en)}_{3}}]{{(S{{O}_{4}})}_{2}}\]
question_answer93) Following conversion can be carried out by using (1)\[KMn{{O}_{4}}\]in alcohol (2)\[NaClO\] in a buffer (3)\[A{{g}_{2}}O/NaOH,\text{ }HCl\] (4)\[FeC{{l}_{3}}\]in a buffer
question_answer94) Which of the following properties are related to physical adsorption? (1) Reversible (2) Formation of unimolecular layer (3) Low heat of adsorption (4) Occurs at high temperature
question_answer97) In a cell\[Zn||Z{{n}^{2+}}||Pt\,{{H}^{+}}|{{H}_{2}},\]the addition of\[{{H}_{2}}S{{O}_{4}}\]to cathode compartment, will (1) decrease the E (2) increase the E (3) shift equilibrium to left (4) shift equilibrium to right
question_answer98) Which of the following compounds contain chiral carbon atom? (1) 2-chloropentane (2) 1-chloro-2-methylpentane (3) 3-chloro-2-methylpentane (4) 1-chloropentane
question_answer99) Excess of\[KI\]reacts with\[CuS{{O}_{4}}\]solution and then\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]solution is added to it. The correct statements for this reaction are (1) \[C{{u}_{2}}{{I}_{2}}\]is formed (2)\[Cu{{I}_{2}}\]is formed (3)\[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\]is oxidised (4) evolved\[{{I}_{2}}\]is oxidised.
question_answer100) Select the correct statement (s). (1)\[Ar,Kr\]and\[Xe\]form clathrate. (2)\[Xe{{O}_{3}}\]has four\[\sigma \]and four\[\pi \]bonds. (3) In white phosphorus four lone pairs of electrons are present. (4) In diborane boron is\[s{{p}^{2}}\]hybridised.
question_answer129) Which of the following statements are correct ? (1) Mitochondria contain DNA (2) 70S ribosomes occur in prokaryote (3) Ribosomes are made up of phospholipids and oligosaccharide (4) Ribosomes are not found in Protista and Monera
question_answer134) Menstrual cycle is controlled by (1) estrogen and progesterone of ovary (2) FSH of pituitary (3) FSH and LH of pituitaiy (4) oxytocin hormone
question_answer136) An important function of progesterone is (1) prepare uterus for pregnancy (2) implantation of embryo (3) maintenance of pregnancy (4) stimulate ADH
question_answer140) LH in human female is (1) fascilitates luteinization of granulosa cells of ovulated follicle (2) called ovulation hormone (3) helps in milk eyection (4) activates Leydig's cell to secrete androgen
question_answer141) Correctly matched pairs are (1) Clitoris-Erectile body in female homologous to glans penis of male (2) Sexual inter course-Coirtus (3) Colostrum-Secreiion found in seminal fluid (4) Areola-Pigmented circular area around the nipple
question_answer143) Amniocentesis is a method to (1) detect genetic disorder in an unborn baby (2) prenatal sex-determination (3) medical termination of pregnancy (4) fertilize the egg
question_answer144) Biomedical techniques commonly used are (1)\[\text{MRI}\]?Study of brain in health and encephalography disease (2) PET imaging?Measurement of cerebral blood volume and flow rate (3) Nuclear induction method?Discovered by Banding and Best (4) Tomography?Treatment by radiation
question_answer148) Linkage groups (1) have genes, which were linked together in a single chromosomes (2) show independent assortment (3) do not show independent assortment (4) in prokaryotes are more than one
question_answer149) Glomerular filterate is (1) formed continuously by the process of ultrafiltration occurring at Malpighian corpuscles, in which the blood cells and the colloidal macromolecues are not allowed to pass across the filtering surface (2) the lipid free fluid collected within the human of Bowman's capsule (3) the protein free fluid collects within the lumen of Bowman's capsule (4) formed by the process of selective reabsorption
question_answer150) Blood does not clot inside the vessels because (1)constant speedy flow of blood prevents accumulation of fibrin threads, if at all formed (2) absence of heparin, an anticoagulant having an tithrombin activity, in blood (3) smoothness of the endothelial lining prevents rupture by platelets and formation of thromboplastin from them (4) presence of monomolecular layer of negatively charged protein adsorbed to the inner surface of endothelium, which attracts the clotting factors
question_answer187) Idioblast is (1) plant cell different from others (2) animal cell different from others (3) plant cell having cell inclusions (4) animal cell having cell inclusions
question_answer189) Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin to cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with \[\text{IAA}\]
question_answer190) With reference to plant tissue culture select the matching pair (1) Sterile tiploid?Banana and seedless fruit (2) Somaclonal variations?Differences appearing (3) Embryoids?Non zygotic embryo produced from somatic cells (4) Pulses?Belong to Cruciferae
question_answer191) Consider the following statement (1) In plant cells, Cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus
question_answer192) Consider the following statement " The genetic code said to be degenerate and universal, which means that, (1) amino acids may have more than one codon (2) all amino acids have more than one codon (3) codons are common for higher and lower organism (4) codons are not found in bacteria
question_answer193) Consider the following statements (1) the seed of pea is exalbuminous (2) the fruit of peach is drupe (3) the seed of tomato is albuminous (4) the fruit of coconut is berry
question_answer194) Consider the following statements (1) Cutin is a fatty acid polymer (2) Starch is a fatty acid polymer (3) Sucrose is monosaccharide (4) Maltose is polymer of fructose
question_answer196) 46. Consider the following statements (1) Copper is present in cytochrome oxidase (2) Pantothenic acid is the precursor of Co-A (3) Thiamine pyrophosphate is the prosthetic group in decarboxylases (4) Zinc is present in RNA and DNA polymerases
question_answer198) Consider the following statements (1)Marchantia polymorpha is dioecius (2) possesses antheridiophores and archegoniophores (3) lacks foot and seta in its sporophyte (4) is heterosporous
question_answer199) Which of the following are true archaebacteria' (1) Extreme halophiles (2) Extreme thermophyles (3) Methanogens (4) Presence of peptidoglycan cell wall
question_answer200) Consider the following statements associated with the germination of an angiospermous seed (1) as the seed gets hydrated and germinaas, enzymatic activity is increased (2) the respiration rate of the germinal- seeds increases along with the increased enzymatic activity (3) the increase in the respiratory rate continues till senescence (4) rate of enzymatic activity decreases