FULL TEST 07
1.Which plays an important role in the dispersal of spores in Funaria?
2.Read the following five statements (i – v) and answer the question. (i) In Equisetum, the female gametophyte is retained on the parent sporophyte. (ii) In Ginkgo, male gametophyte is not independent. (iii) The sporophyte in Riccia is more developed than that in Polytrichum. (iv) Sexual reproduction in Volvox is isogamous. (v) The spores of slime molds lack cell walls. How many of the above statements are correct?
3.The fluidity of membranes in a plant in cold weather may be maintained by
4. Addition of a solute to pure water causes
5.Which one of the following process help the water- soluble inorganic nutrients go down into the soil horizon and get precipitated as unavailable salts?
6.Siliceous frustules of diatoms being indestructible, piled up at the bottom of ocean and formed a thick bed over billions of years. Such a thick bed is known as
7.The first dicarboxylic acid in Krebs’ cycle is
8. $N_2$ + 8$e^-$ + 8$H^+$ + 16ATP $→$ 2$NH_4$ + $H_2$ + 16ADP + Pi The above equation refers to
9.If turgor pressure becomes equal to osmotic pressure
10.A cell cannot divide if it does not cross
11.A vascular bundle in which the protoxylem is pointing to the periphery is called
12.Which one of the following micro-organisms is used for production of citric acid in industries?
13.Emasculation is not required when flowers are
14.Select the incorrect match of the type of plant to its example
15.Which part of the coconut produces coir?
16.The given diagram shows microsporangium of a mature anther. Identify A, B and C.
17.The productivity of a crop declines when leaves begin to wilt mainly because
18.Which one of the following is not a function of an ecosystem?
19.The process in which mature differentiated cells reverse to meristematic activity to form callus is called
20.Which one of the following statement is true?
21.Most of the net primary productivity in an ecosystem is used for what purpose?
22.Transition zone between two vegetations is
23.If a farmer has a soil with little phosphorus and a very high pH, what should be applied?
24.Final electron acceptor in oxidative phosphorylation is
25.In a CAM plant, the concentration of organic acid
26.The phenomenon of plasmolysis is evident when cells are kept in
27.Quantasomes are found in
28.Identify the parts labelled as A, B, C and D in the given figure and select the correct option from the codes given below.
29.Which one of the following is a correct statement?
30.Function of suspensor of embryo is
31.Pineapple (ananas) fruit develops from
32.In a raceme, the flowers are
33.The common bottle cork is a product of
34.Telomere and eukaryotic chromosome possesses short segments of
35.What mechanism explains the movement of sucrose from source to sink?
36.Which one of the following pairs is not correctly matched :
37.A taxon facing an extremely high risk of extinction in wild in the immediate future is called
38.Compensation point is
39.Which of the following hormones does not naturally occur in plants?
40.Hydroponics or soilless culture helps is knowing
41.A trace element essential for plant growth and radioisotope, which is used in cancer therapy is
42. Choose odd w.r.t. collenchyma.
43.Water will be absorbed by root hairs when
44.Which of the following types of phytohormones resemble the nucleic acids in some structural aspects ?
45.Which of the following statement(s) is/are incorrect ? (i) Proton channel of oxysome / complex V /ATP synthase is located in F$_1$ (ii) Metabolic water is produced in terminal oxidation / produced in respiration. (iii) CoQ accepts electron from NADH dehydrogenase (complex I) and also can accept electron from FADH$_2$/ succinate Q- reductase / complex II. (iv) Cytochrome c is a small protein attached to outer surface of the inner mitochondrial membrane and acts as mobile carrier for transfer of electrons between complex I (Cyt bc, complex) and III. (v) Complex IV refers to cytochrome c oxidase (cyt a, a$_3$ and 2 Cu per centre). (vi) If a cell is treated with a drug that inhibits ATP synthase, the pH of mitochondrial matrix will increase.
46.Four chromatids and two centromeres which are homologous occurs in
47.Movement of water through cell wall is called
48.Which of the following is not caused by deficiency of mineral nutrition?
49.The rate of photosynthesis does not depend upon
50.The formation of Acetyl Co-A from pyruvic acid is the result of its
51.Which one of following feature is possessed by Crustaceans and not by insects?
52.Which one is not a vestigial organ?
53.During inspiration, the diaphragm
54.Cirrhosis of liver is caused by the chronic intake of
55.Which of the following sets contains polysaccharides?
56.Which one of the following combinations of organisms are responsible for the formation and flavour of yoghurt?
57.Baculoviruses are excellent candidates for
58.Select the correct statement.
59.Study the age pyramids given below and select the correct statements regarding these.
60.The lactic acid generated during muscle contraction is converted to glycogen in
61.Thromboplastin is secreted by
62.B-DNA which is right-handed double helix contains ____ base pairs per turn of the helix and each turns is ____ long.
63.Match Column-I with Column-II and select the correct option from the codes given below.
64.Splitting of centromere and hence separation of chromatids occur during
65.Which one of the following combination is mismatched?
66.The most basic amino acid is
67.Poison glands of snake are modified
68.Which of the following statements are wrong? (i) Leucocytes disintegrate in the spleen and liver. (ii) RBC, WBC and blood platelets are produced by bone marrow. (iii) Neutrophils bring about destruction and detoxification of toxins of protein origin. (iv) The important function of lymphocytes is to produce antibodies.
69.Which one single organism or the pair of organisms is correctly assigned to its taxonomic group?
70.Bee dances are meant for
71.Which of the following are correct?
72.Which one of the following techniques is safest for the detection of cancers?
73. Select the correct option showing the life cycle of Plasmodium.
74.Which of the following technique is used for the separation of DNA fragments ?
75.The flow chart given below represents the process of recombinant DNA technology. Identify A, B, C and D.
76.Which one of the following statement is correct?
77.Which of the following statement(s) is/are true? (i) Biowar is the use of biological weapons against humans and /or their crops and animals. (ii) Bioethics is the unauthorized use of bioresources and traditional knowledge related to bioresources for commercial benefits. (iii) Biopatent is exploitation of bioresources of other nations without proper authorisation.
78.The species that invade a bare area are called
79.If receptor molecule is removed from target organ for hormone action, the target organ will
80. Osteoporosis is caused by
81.Which hormone is related to mineral metabolism but is not a peptide / protein in nature ?
82.Mark the incorrect statement
83.The contractile protein of skeletal muscle involving ATPase activity is
84.Endocrine glands have ______ to carry their secretions to the specific organ.
85.The functional unit of mammalian kidney is
86.The condition of excess urea in blood is known as
87.Chordae tendinae are found in
88.The pattern of contraction and relaxation of the heart is referred to as
89.Chemosensitive area of respiratory centre in medulla is affected is
90.Which of the following statements are true ? (i) The blood transports CO$_2$ comparatively easily because of its higher solubility. (ii) Approximately 8-9% of CO$_2$ is transported being dissolved in the plasma of blood. (iii) The carbon dioxide produced by the tissues, diffuses passively into the blood stream and passes into red blood corpuscles and react with water to form H$_2$CO$_3$ .(iv) The oxyhaemoglobin (HbO$_2$) of the erythrocytes is basic. (v) The chloride ions diffuse from plasma into the erythrocytes to maintain ionic balance.
91.In a mRNA molecule, untranslated regions (UTRs) are present at
92.What is the figure given below showing in particular ?
93.Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together.
94.Which one of the following statements is correct with respect to immunity?
95.Given below is a pedigree chart showing the inheritance of a certain sex-linked trait in humans The trait traced in the above pedigree chart is
96.In micturition
97.In old age stiffness i due to the
98.A thin vascular membrane of brain is
99.Which of the following is not a second messenger in hormone action?
100.Ribosomal RNA is actively synthesized in
101.The number of antibonding electron pairs in $O_2^{2-}$ molecular ion on the basis of molecular orbital theory are (at. no. O = 8)
102.Consider the following reaction : $4NH_{3(g)}$ + $5O_{2(g)}$ + Pt$_{(s)}$ $→$ $4NO_{(g)}$ + $6H_2O_{(g)}$ (i) Rate of reaction with respect to $NH_3$ will be $-\frac{1}{4}\frac{∆[NH_3]}{∆t}$ (ii) For the given reaction, $\frac{-1}{5}\frac{∆[O_2]}{∆t}$ = $\frac{-1}{6}\frac{∆[H_2O]}{∆t}$ (iii) For the given reaction, $\frac{-1}{4}\frac{∆[NH_3]}{∆t}$ = $\frac{1}{4}\frac{∆[NO]}{∆t}$ (iv) For the given reaction, Rate = $\frac{-1}{4}\frac{∆[NH_3]}{∆t}$ = $\frac{-1}{5}\frac{∆[O_2]}{∆t}$ = = $\frac{4∆[NO]}{∆t}$ = $\frac{6∆[H_2O]}{∆t}$ Which of the following are the correct statements.
103.Read the following statements carefully.(i) According to a convention cell potential of hydrogen electrode (S.H.E.) is considered to be zero at all temperatures. (ii) e.m.f. of the cell Pt(s)/H$_2$(g, 1 bar)/H$^+$(aq, 1M)||$Zn^{2+}$(aq, 1M)/Zn is – 0.76. This negative value indicates that Zn$^{2+}$ ion reduces less easily then H$^+$ ions (iii) Copper does not dissolve in HCl but dissolves in $HNO_3$ as in nitric acid it gets oxidised by nitrate ion. (iv) Inert metals like Pt or Au are used in certain electrodes i.e., these metals does not participate in reaction but provide surface for oxidation and reduction reactions. (v) Fluorine has the highest electrode potential thereby making it strongest oxidising agent whereas lithium with lowest electrode potential is the weakest oxidising and strongest reducing agent. Which of the following are the correct statements above.
104.The transition metals have a less tendency to form ions due to
105.$2C_6H_5CHO$ + $OH^-$ + $H_2O$ $→$ $C_6H_5CH_2OH$ + $C_6H_5COO^-$ Which of the following statements are correct regarding the above reduction of benzaldehyde to benzyl alcohol? (i) One hydrogen is coming from $H_2O$ as $H^+$ and another form $C_6H_5CHO$ as $H^-$ (ii) One hydrogen is coming from $H_2O$ as $H^-$ and another form $C_6H_5CHO$ as $H^+$ (iii) One hydrogen from $H_2O$ and another form $C_6H_5CHO$, both in the form of $H^-$ (iv) The reduction is an example of disproportionation reaction
106.Read the following statements and choose the correct option (i) The numerical value of the equilibrium constant for a reaction indicates the extent of the reaction. (ii) An equilibrium constant give information about the rate at which the equilibrium is reached. (iii) If $K_c>10^3$, products predominate over reactants i.e., if $K_c$ is very large, the reaction proceeds nearly to completion. (iv) If $K_c>10^{-3}$, reactants predominate over products, i.e., if $K_c$ is very small, the reaction proceeds rarely.
107.The important antioxidant used in food is
108.Brine is electrolysed by using inert electrodes. The reaction at anode is ________.
109.Geometrical isomerism is not shown by
110.Schotten-Baumann reaction is a reaction of phenols with
111.Which of the following statements are correct ? (i) Ionic product of water $(K_W)$ = $[H^+][OH^-]$ = $10^{-14}M^2$ (ii) At 298K $[H^+] = [OH^-] = 10^{-7}$ (iii) $K_W$ does not depend upon temperature (iv) Molarity of pure water = 55.55M
112.According to the adsorption theory of catalysis, the speed of the reaction increases because
113.Consider the following reaction at 1000°C A. $Zn_{(s)}+½O_{2(g)} → ZnO_{(s)}$; $∆G^0$ = -360 kJ mol$^{-1}$ B. $C_{(gr)}+½O_{2(g)} → CO_{(g)}$; $∆G^0$ = -460 kJ mol$^{-1}$ Choose the correct statement at 1000°C
114.Consider the following complex $[Co(NH_3)_5CO_3]ClO_4$ The coordination number, oxidation number, number of d-electrons and number of unpaired d-electrons on the meal are respectively
115.Match List I (Reaction) with List II (Reagent) and select the correct answer using the codes given below the lists:
116.The solubility product of AgI at 25°C is 1.0 × 10$^{-16}$ mol$^2$ L$^{-2}$. The solubility of AgI in 10$^{-4 }$N solution of KI at 25°C is approximately (in mol L$^{-1}$)
117.Match the columns
118.Which one of the following is the correct statement?
119.Arrange the following compounds in order of decreasing acidity :
120.Teflon, styron and neoprene are all
121.Values of dissociation constant, $K_a$ are given as follows :
122.Which of the following statement is correct if the intermolecular forces in liquids A, B and C are in the order A < B < C?
123.The reducing power of divalent species decreases in the order
124.Sodium Carbonate cannot be used in place of $(NH_4)_2CO_3$ for the identification of $Ca^+$, $Ba^{2+}$ and $Sr^{2+}$ ions (in group V) during mixture analysis because :
125.Which of the following statements is not correct regarding aniline?
126.Which of the following equilibria will shift to right side on increasing the temperature?
127.An aqueous solution of sucrose, $C_{12}H_{22}O_{11}$, containing 34.2 g has an osmotic pressure of 2.38 atmospheres at 17°C. For an aqueous solution of glucose, $C_6H_{22}O_6$ to be isotonic with this solution, it would have
128.Prevention of corrosion of iron by Zn coating is called
129.Aromatic character of benzene is proved by
130.RNA is different from DNA because RNA contains
131.The de Broglie wavelength of a tennis ball of mass 60 g moving with a velocity of 10 m/s is approximately
132.AB, $A_2$ and $B_2$ are diatomic molecules. If the bond enthalpies of $A_2$, AB and $B_2$ are in the ratio 1:1:0.5 and enthalpy of formation of AB from $A_2$ and $B_2$ is -100 kJ mol$^{-1}$ . What is the bond energy of $A_2$ :
133.Beryllium shows diagonal relationship with aluminium. Which of the following similarity is incorrect :
134.
135.The fatty acid which shows reducing property is
136.If the nitrogen atom had electronic configuration $1s^7$ it would have energy lower than that of the normal ground state configuration $1s^22s^22p^3$ because the electrons would be closer to the nucleus. Yet $1s^7$ is not observed. It violates
137.For orthorhombic system axial ratios are a ≠ b ≠ c and the axial angles are
138.When cyclohexane is poured on water, it floats, because
139.$(n-1)d^{10}ns^2$ is the general electronic configuration of
140.Which is colourless in water?
141.Structurally biodegrdable detergent should contain
142.Which of the following crystals does not exhibit Frenkel defect?
143.A reaction which is of first order w.r.t. reactant A, has a rate constant 6 min$^{-1}$. If we start with [A] = 0.5 mol L$^{-1}$, when would [A] reach the value of 0.05 mol L$^{-1}$
144.The correct order of radii is
145.Which of the following statements about low density polythene is FALSE?
146.Which of the following is least likely to behave as Lewis base?
147.Polyphosphates are used as water softening agents because they
148.The dominant cation in the blood plasma (extracellular fluid) is
149.Among the following compounds, the most acidic is
150.The high amount of E.coli in water is the indicator of
151.The dimensions of angular momentum, latent heat and capacitance are, respectively.
152.A radioactive sample at any instant has its disintegration rate 5000 disintegrations per minute. After 5 minutes, the rate is 1250 disintegrations per minute. Then, the decay constant (per minute) is
153.Which of the following gates corresponds to the truth table given below?
154.A closed argon pipe and an open argon pipe are tuned to the same fundamental frequency. What is the ratio of their lengths?
155.A pulley of radius 2 m is rotated about its axis by a force F = $(20t – 5t^2)$ newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg-m$^2$ the number of rotations made by the pulley before its direction of motion is reversed, is:
156.The moment of inertia of a regular circular disc of mass 0.4 kg and radius 100 cm about the axis perpendicular to the plane of the disc and passing through its centre is
157.The displacement vs time of a particle executing SHM is shown in figure. The initial phase φ
158.Consider a ball of small mass connected to a string, which is attached to a vertical post. If the ball is released when the string is horizontal , the magnitude of the total acceleration of the mass as a function of the angle θ is:
159.One end of uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight $W_1$ is suspended from its lower end. If s is the area of cross section of the wire, the stress in the wire at a height (3L/4) from its lower end is
160.The maximum electric field that can be held in air without producing ionisation of air is 10$^7$ V/m. The maximum potential therefore, to which a conducting sphere of radius 0.10 m can be charged in air is
161.The masses of the three wires of copper are in the ratio of 1 : 3 : 5 and their lengths are in the ratio of 5 : 3 : 1. The ratio of their electrical resistance is
162.Consider a vector F = 4î – 3ĵ. Another vector that is perpendicular to F is
163.The graph (fig.) below describes the motion of a ball rebounding from a horizontal surface being released from a point above the surface. Assume the ball collides each time with the floor inelastically. The quantity represented on the y- axis is the ball's (take upward direction as positive)
164.Two equal masses $m_1$ and $m_2$ moving along the same straight line with velocities + 3 m/s and – 5m/s respectively, collide elastically. Their velocities after the collision will be respectively
165.The angular velocities of three bodies in simple harmonic motion are $ω_1$, $ω_2$, $ω_3$ with their respective amplitudes as $A_1$, $A_2$, $A_3$ . If all the three bodies have same mass and velocity, then
166.The radius R of the soap bubble is doubled under isothermal condition. If T be the surface tension of soap bubble, the work done in doing so is given by
167.A point charge of magnitude + 1 mC is fixed at (0,0, 0). An isolated uncharged spherical conductor, is fixed with its center at (4, 0, 0). The potential and the induced electric field at the centre of the sphere is :
168.We have a galvanometer of resistance 25 W . It is shunted by a 2.5 W wire. The part of total current that flows through the galvanometer is
169.Consider a thermodynamic system. If ∆U represents the increase in its internal energy and W the work done by the system, which of the following statements is true ?
170.The electric field at a distance r from the centre in the space between two concentric metallic spherical shells of radii $r_1$ and $r_2$ carrying charge $Q_1$ and $Q_2$ is ($r_1<r<r_2$)
171.Light of wavelength 200 Å fall on aluminium surface. Work function of aluminium is 4.2 eV. What is the kinetic energy of the fastest emitted photoelectrons?
172.Which of the following waves have the maximum wavelength ?
173.Impedance of circuit when a resistance R and an inductor of inductance L are connected in series in an A. C. circuit of frequency ν, is
174.If the wavelength of the first line of the Balmer series in the hydrogen spectrum is λ, then the wavelength of the first line of the Lyman series is
175.The effective capacitance of combination of equal capacitors between points A and B shown in figure is
176.Which one of the following is NOT a correct statement about semi-conductors?
177.The sprinkling of water reduces slightly the temperature of a closed room because
178.Two bodies of masses m and 4m are moving with equal kinetic energies. The ratio of their linear momenta will be
179.Masses of 1 kg each are placed 1 m, 2 m, 4 m, 8 m, ..... from a point P. The gravitational field intensity at P due to these masses is
180.Heat energy absorbed by a system in going through a cycle process shown in figure is
181.The electric field associated with an e.m. wave in vacuum is given by E = î 40 cos(kz-6$×10^8t$), where E, z and t are in volt/m, meter and seconds respectively. The value of wave vector k is
182.An aeroplane flying at a constant speed releases a bomb. As the bomb moves away from the aeroplane, it will
183.The point charges Q and –2Q are placed at some distance apart. If the electric field at the location of Q is E. Then, the electric field at the location of –2Q will be
184. A cell of internal resistance r is connected to an external resistance R. The current will be maximum in R, if
185.A vessel of depth x is half filled with oil of refractive index $μ_1$ and the other half is filled with water of refractive index $μ_2$ The apparent depth of the vessel when viewed from above is
186.A cylindrical block of area of cross-section A and of material of density r is placed in a liquid of density one-third of density of block. The block compresses a spring and compression in the spring is one-third of the length of the block. If acceleration due to gravity is g, the spring constant of the spring is
187.In A.C. circuit in which inductance and capacitance are joined in series, current is found to be maximum when the value of inductance is 0.5 H and the value of capacitance is 8 μF. The angular frequency of applied alternating voltage will be
188.Angle between magnetic meridian and geographical meridian is called
189.Heat is required to change 1 kg of ice of –20$^0$C into steam. $Q_1$ is the heat needed to warm the ice from –20$^0$C to 0$^0$C, $Q_2$ is the heat needed to melt the ice, $Q_3$ is the heat needed to warm the water from 0$^0$C to 100$^0$C and $Q_4$ is the heat needed to vaporize the water. Then
190. The P-V equation for a process of an ideal gas is given by P = $\frac{12P_0V}{V_0}-\frac{4P_0V^2}{V_0^2}-7P_0$ The graphical representation of the above process is shown is
191.A current carrying wire in the neighbourhood produces
192. 10 g of ice at 0$^0$C is mixed with 100 g of water at 50$^0$C. What is the resultant temperature of mixture?
193.The internal energy of an ideal gas increases during an isothermal process when the gas is
194.Upper part of a prism is cut. The ray diagram of a ray incident at first refracting surface is as shown in figure. The minimum deviation that can be produced by the prism is
195.In Young’s double-slit experiment, the separation between the slits is halved and the distance between the slits and the screen is doubled. The fringe width is
196.A wire of resistance 5 ohm is drawn out to its new length, three times its original length. The resistance of the new wire is
197.A circular loop of radius R, carrying current I, lies in the X-Y plane with its centre at the origin. The total magnetic flux through X-Y plane is
198.Which of the following is not due to total internal reflection?
199.The work function of aluminium is 4.2 eV. If two photons, each of energy 3.5 eV strike an electron of aluminium, then emission of electrons
200.If in nature there may not be an element for which the principal quantum number n>4, then the total possible number of elements will be