MCAT 2012
Mcat 2012!!
Biology…
1.when chromosomes uncoil, the nucleoli are reformed and two nuclei are the two poles of the cell; stage is known as
a. prophase b.metaphase c. telophase d. anaphase
2. Mental retardation, short stature, broad face and squint eyes are the symptoms of;
a. down’s syndrome b. klinefelter’s syndrome c. turner’s syndrome d. xyz syndrome
3. Chiasmata formation takes place during the process
a. crosing over b. attachment c. pairing d. leptotene
4. Healing of a wound and repair is the phenomenon which takes place by the process of
a. mitosis b. meiosis c. cell growth d. mitosis and meiosis
5. Which of the following is the main cause of cancer?
a. mutation b.controlled cell division c. regulated miiosis d. haploid division.
6. Covalent bond frmed b/w two monosaccharides
a. glycosidic bond b. hydrgn bond c. peptide bond d. disulphide bond
7. Bond formed b/w glucose and fructose to form sucrose is
a. 1,4 glycosidic linkage b. 1,2 glycosidic linkage c.1,6 glycosidic linkage d. 1,3 glycosidic linkage
8. In an amino acid in which the R-group is H, its name will be
a. alanine b.glycine c. leusine d. valine
9. Fatty acids are the organic compounds containing H, O, and one of the following; a.-COOH b.-NH2 c.acyl d.sucrose
10. Posomes are used in gene therapy against
a.hypercholesterolemia b.coronary artery angioplasty c.cystic fibrosis d.SCID
11. Genetically engineered cells are introduced into bone marrow cells in the treatment of
a. hypercholesterolemia b.coronary artery angioplasty c. cystic fibrosis d.SCID
12. W.o.f is depleting and causing thinning of ozone
a. Cl b. Br c. CFC d. C
13. The typical environment of a particular organism population community is called
a.niche l.ecosystem c.habitat d.biosphere
14. Excessive enrichment of water with nutrients by human activity by which large amunt of living organic matter grows is called
a. archeotrophication l.eutrophication c.enrichment d. low trophication
15. In an ecosystem, mycorrihza is an example of
a.symbiosis b. predation c.commensalism d.parasitism
16. Successive stages of eating and being eaten by which recycling of materials and flow of energy takes place is called
a.food chain b.food web c.trophic level d.food link
17. The sex of individual of next generation alwayz depends on one of the parent, who is
a.hetrogametic b.homogametic c.isogametic d.isomorphic
18. Which of the following will be haemophilic
a. X(H)X(h) b.X(H)X(H) c.X(h)Y d.X(H)Y
19.which of following is X-linked recessive trait in humans
a.hypophosphatemic rickets b.colour blindness c.baldness d.beard growth
20. Which trait in humans is an example of multiple alleles
a.eye colour b.skin colour c.ABO-Blood group d.Rh-blood group
21.a gene at one locus interacts with another gene at another locus, the interaction is known as
a.dominance b.multiple allelism c.pleitropy d.epistasis
22. The combination of a pentose sugar with a base result in a compound known as
a.nucleotide b.nucleoside c.nucleic acid d.polynucleotide
23.an enzyme and substrate reacts through a special feature or site present in enzyme known as
a.building site b.active site c.catalyst site d.inhibition site
24.non-protein part which is covalently bonded with enzyme is
a.prosthetic group b.co-factor c.co-enzyme d.activator
25.one of the pyrimidine bases is absent in DNA
a.uracil b.thymine c.cytosine d.adenine
26.enzymes increases the rate of reaction by
a. increasing temperature b.decreasing pH c.decrasing activation energy d.increasing activation
27.which disease is causeh by RNA enveloped virus and spread in epidemic form
a.influenza b.herpes simplex c.polio d.small pox
28.structure which contains the gene for drug resistacne bacteria are
a.nucleoids b.mesomes c.chromatin bodies d.plasmids
29.antibiotics that kill microbes immediately are called
a.microbistatic b.microbicidal c.biostatic d.chemotherapeatic
30. Which of the following fungi cause vaginal thrush
a.candida b.aspergillus c.tortula d.pencillium
31.body cavity of round worms is called
a.pseudocoelom b.coelom c.acoelum d.enteron
32.fasciola is endoparasite of
a.colon b.liver c.small intestine d.bile duct
33.trypanosoma is transmitted in human beings by
a.plasmodium b.anopheles c.housefly d.tse-tse fly
34.the nervous system develops from which of the following layer during embryonic development of animals
a.mesoderm b.ectoderm c.endoderm d.mesoderm and ectoderm
35.endosperm is formed as a result of
a.pollination b.self-pollination c.double fertilization d.cross pollination
36. Which of the following enzyme is released in an inactive form
a.amylase b.lipase c.enterokinase d.pepsin.
37. Which of the following hormones stimulate the secretion of pancreatic juice from pancreas in liver?
a.secretin b.pepsinogen c.gastrin d.both a+c
38.in large intestine vitamin K is formed by the activity of
a.symbiotic bacteria b.obligate parasite c.parasitic bacteria d.facultative bacteria
39. During swallowing of food which structure close nasal opening?
A.hard palate b.soft palate c.epiglotttis d.larynx
40. The right atrium of the heart usually receives the
a.deoxygenated blood b.oxygenated blood c.filtered blood d. non-filtered blood
41.the largest lymph duct called thoracic lymph duct drains into
a.subclavian vein b.renal vein c.pulmonary vein d.hepatic portal vein
42.which protein plays a major role in maintaining osmotic balance?
a.albumin b.globulin c.fibrinogen d.prothrombin.
43. The type of agranulocytes which stays in blood for a few hours and then enters tissues and become macrophages s
a.lymphocytes b.monocytes c.eosinophil d.basophils
44. Reabsorption of water by counter current multiplier mechanism takes place at
a.proximal tubule b.distal tubule c.collecting duct d.loop of henle
45.ADH helps in reabsorption of water by changing permeability of
a.proximal tubule b.distal tubule c.collecting duct d.loop of henle
46. During peritoneal dialysis, the dialysis fluid is introduced into which part of human body?
a. liver b.abdomen c.kidney d.pancreas
47.aldosterone helps in conservation or active absorption of
a. Na b.Ca c.K d.HCO3-
48 max reabsorption takes place in?
a.distal tubule b.villi c.cortical tissue d.proximal tubule
49.over-activity of sympathetic nervous system causes
a.disturbance of vision b.constipation c.decrease in blppd pressure d.increase in heart rate
50. Which structures respond by impulse coming through motor neuron?
A. receptors b.responses c.effectors d.transduction.
51. Respiratory centre is located in
a.cerebrum b.cerebellum c.medulla d.hypothalamus
52.a neurological condition characterized by involuntary tremors, diminished motor activity and rigidity is called
a.epilepsy b.parkinson’s disease c.alzheimer’s disease d.cerebellar tumours
53. A type of cells in human testes which produce testosterone is called
a.interstitial cells b.germ cells c.sertoli cells d.spermatocytes
54.breakdown of endometrium during mensuration is due to
a.increase in level of LH b.decrease in level of progesterone c.increase in level of progesterone d.increase in level of oetrogen
55. Oogonia are produced in the germ cells of
a.uterus b.cervix c.ovary d. a+b
56.which of the following diseases can be prevented through vaccination
a. AIDS and cancer b.malaria and AIDS c.typhoid and cancer d.measles and mumps
57.newly produced cells/individuals which are identical to each other are known as
a.genetically modified b.transgenic animals c.transgenic bacteria d.clones
58.which of the following is blood borne disease
a. hepatitis b.cholora c.influenza d.candidiasis
59.control of pests by natural enemies is known as
a.cultural control b.biological control c.pesticides control d.insecticides control
60. Which organelle is concerned with cell secretion
a.ribosomes b.golgi apparatus c.lysosomes d.mitochondria
61. Which contains peptidoglycan cell wall
a. pencillium b.bacterium c.adiantum d.polytrichum
62.inner membrane of mitochondria is folded to form finger like structure called
a.cristea b.vesicle c.matrix d.cisternae
63.the hetrogeneous structure embedded in the matrix of interior chloroplast
a.grana b.stroma c.thylakoids d.cisternae
64.in which phase of cell division the metabolic activity of nucleus is high
a.mitosis b.interphase c.meiosis d.cell cycle
65.LH triggers
a.cessation of oogenesis b.breakdown of oocyte c.ovulation d.development of zygote
66. Syphilis is caused by
a.HIV/AIDS b.pseudomonas pyogenes c.treponema pallidum d.neisseria
67. Muscles are made up of many cells which are reflected to as
a.myofilaments b.myofibrils c.sarcolema d.muscles fiber
68.the length of myofibril from one Z-band to the next is known as
a. sarcomere b.sarcolemma c.sarcoplasm d.muscle fiber
69.Ca ions released during a muscle fiber contraction attach with
a. myosin b.actin c.tropomyosin d.troponin
70. A muscle condition resulting from the accumulation of lactic acid and ionic imbalane is called
a.tetany b.muscle fatigue c.cramp d.tetanus
71.the pigment which stores oxygen in muscles
a.Hemoglobin .myoglobin c. myosin d.actinomyosin
72. Neurosecretory cells are present in which part of brain
a.hypothalamus b.midbrain c.pons d.cerebellum
73. Function of glucagon
a.glycogenàglucose b.glucoseàglycogen c.glucoseàlipids d.glucoseàproteins
74.addison’s disease is caused due to destruction of
a.adrenal cortex b.pituitary adrenal axis c.adrenall medulla d.hypothalamus
Biology…
1.when chromosomes uncoil, the nucleoli are reformed and two nuclei are the two poles of the cell; stage is known as
a. prophase b.metaphase c. telophase d. anaphase
2. Mental retardation, short stature, broad face and squint eyes are the symptoms of;
a. down’s syndrome b. klinefelter’s syndrome c. turner’s syndrome d. xyz syndrome
3. Chiasmata formation takes place during the process
a. crosing over b. attachment c. pairing d. leptotene
4. Healing of a wound and repair is the phenomenon which takes place by the process of
a. mitosis b. meiosis c. cell growth d. mitosis and meiosis
5. Which of the following is the main cause of cancer?
a. mutation b.controlled cell division c. regulated miiosis d. haploid division.
6. Covalent bond frmed b/w two monosaccharides
a. glycosidic bond b. hydrgn bond c. peptide bond d. disulphide bond
7. Bond formed b/w glucose and fructose to form sucrose is
a. 1,4 glycosidic linkage b. 1,2 glycosidic linkage c.1,6 glycosidic linkage d. 1,3 glycosidic linkage
8. In an amino acid in which the R-group is H, its name will be
a. alanine b.glycine c. leusine d. valine
9. Fatty acids are the organic compounds containing H, O, and one of the following; a.-COOH b.-NH2 c.acyl d.sucrose
10. Posomes are used in gene therapy against
a.hypercholesterolemia b.coronary artery angioplasty c.cystic fibrosis d.SCID
11. Genetically engineered cells are introduced into bone marrow cells in the treatment of
a. hypercholesterolemia b.coronary artery angioplasty c. cystic fibrosis d.SCID
12. W.o.f is depleting and causing thinning of ozone
a. Cl b. Br c. CFC d. C
13. The typical environment of a particular organism population community is called
a.niche l.ecosystem c.habitat d.biosphere
14. Excessive enrichment of water with nutrients by human activity by which large amunt of living organic matter grows is called
a. archeotrophication l.eutrophication c.enrichment d. low trophication
15. In an ecosystem, mycorrihza is an example of
a.symbiosis b. predation c.commensalism d.parasitism
16. Successive stages of eating and being eaten by which recycling of materials and flow of energy takes place is called
a.food chain b.food web c.trophic level d.food link
17. The sex of individual of next generation alwayz depends on one of the parent, who is
a.hetrogametic b.homogametic c.isogametic d.isomorphic
18. Which of the following will be haemophilic
a. X(H)X(h) b.X(H)X(H) c.X(h)Y d.X(H)Y
19.which of following is X-linked recessive trait in humans
a.hypophosphatemic rickets b.colour blindness c.baldness d.beard growth
20. Which trait in humans is an example of multiple alleles
a.eye colour b.skin colour c.ABO-Blood group d.Rh-blood group
21.a gene at one locus interacts with another gene at another locus, the interaction is known as
a.dominance b.multiple allelism c.pleitropy d.epistasis
22. The combination of a pentose sugar with a base result in a compound known as
a.nucleotide b.nucleoside c.nucleic acid d.polynucleotide
23.an enzyme and substrate reacts through a special feature or site present in enzyme known as
a.building site b.active site c.catalyst site d.inhibition site
24.non-protein part which is covalently bonded with enzyme is
a.prosthetic group b.co-factor c.co-enzyme d.activator
25.one of the pyrimidine bases is absent in DNA
a.uracil b.thymine c.cytosine d.adenine
26.enzymes increases the rate of reaction by
a. increasing temperature b.decreasing pH c.decrasing activation energy d.increasing activation
27.which disease is causeh by RNA enveloped virus and spread in epidemic form
a.influenza b.herpes simplex c.polio d.small pox
28.structure which contains the gene for drug resistacne bacteria are
a.nucleoids b.mesomes c.chromatin bodies d.plasmids
29.antibiotics that kill microbes immediately are called
a.microbistatic b.microbicidal c.biostatic d.chemotherapeatic
30. Which of the following fungi cause vaginal thrush
a.candida b.aspergillus c.tortula d.pencillium
31.body cavity of round worms is called
a.pseudocoelom b.coelom c.acoelum d.enteron
32.fasciola is endoparasite of
a.colon b.liver c.small intestine d.bile duct
33.trypanosoma is transmitted in human beings by
a.plasmodium b.anopheles c.housefly d.tse-tse fly
34.the nervous system develops from which of the following layer during embryonic development of animals
a.mesoderm b.ectoderm c.endoderm d.mesoderm and ectoderm
35.endosperm is formed as a result of
a.pollination b.self-pollination c.double fertilization d.cross pollination
36. Which of the following enzyme is released in an inactive form
a.amylase b.lipase c.enterokinase d.pepsin.
37. Which of the following hormones stimulate the secretion of pancreatic juice from pancreas in liver?
a.secretin b.pepsinogen c.gastrin d.both a+c
38.in large intestine vitamin K is formed by the activity of
a.symbiotic bacteria b.obligate parasite c.parasitic bacteria d.facultative bacteria
39. During swallowing of food which structure close nasal opening?
A.hard palate b.soft palate c.epiglotttis d.larynx
40. The right atrium of the heart usually receives the
a.deoxygenated blood b.oxygenated blood c.filtered blood d. non-filtered blood
41.the largest lymph duct called thoracic lymph duct drains into
a.subclavian vein b.renal vein c.pulmonary vein d.hepatic portal vein
42.which protein plays a major role in maintaining osmotic balance?
a.albumin b.globulin c.fibrinogen d.prothrombin.
43. The type of agranulocytes which stays in blood for a few hours and then enters tissues and become macrophages s
a.lymphocytes b.monocytes c.eosinophil d.basophils
44. Reabsorption of water by counter current multiplier mechanism takes place at
a.proximal tubule b.distal tubule c.collecting duct d.loop of henle
45.ADH helps in reabsorption of water by changing permeability of
a.proximal tubule b.distal tubule c.collecting duct d.loop of henle
46. During peritoneal dialysis, the dialysis fluid is introduced into which part of human body?
a. liver b.abdomen c.kidney d.pancreas
47.aldosterone helps in conservation or active absorption of
a. Na b.Ca c.K d.HCO3-
48 max reabsorption takes place in?
a.distal tubule b.villi c.cortical tissue d.proximal tubule
49.over-activity of sympathetic nervous system causes
a.disturbance of vision b.constipation c.decrease in blppd pressure d.increase in heart rate
50. Which structures respond by impulse coming through motor neuron?
A. receptors b.responses c.effectors d.transduction.
51. Respiratory centre is located in
a.cerebrum b.cerebellum c.medulla d.hypothalamus
52.a neurological condition characterized by involuntary tremors, diminished motor activity and rigidity is called
a.epilepsy b.parkinson’s disease c.alzheimer’s disease d.cerebellar tumours
53. A type of cells in human testes which produce testosterone is called
a.interstitial cells b.germ cells c.sertoli cells d.spermatocytes
54.breakdown of endometrium during mensuration is due to
a.increase in level of LH b.decrease in level of progesterone c.increase in level of progesterone d.increase in level of oetrogen
55. Oogonia are produced in the germ cells of
a.uterus b.cervix c.ovary d. a+b
56.which of the following diseases can be prevented through vaccination
a. AIDS and cancer b.malaria and AIDS c.typhoid and cancer d.measles and mumps
57.newly produced cells/individuals which are identical to each other are known as
a.genetically modified b.transgenic animals c.transgenic bacteria d.clones
58.which of the following is blood borne disease
a. hepatitis b.cholora c.influenza d.candidiasis
59.control of pests by natural enemies is known as
a.cultural control b.biological control c.pesticides control d.insecticides control
60. Which organelle is concerned with cell secretion
a.ribosomes b.golgi apparatus c.lysosomes d.mitochondria
61. Which contains peptidoglycan cell wall
a. pencillium b.bacterium c.adiantum d.polytrichum
62.inner membrane of mitochondria is folded to form finger like structure called
a.cristea b.vesicle c.matrix d.cisternae
63.the hetrogeneous structure embedded in the matrix of interior chloroplast
a.grana b.stroma c.thylakoids d.cisternae
64.in which phase of cell division the metabolic activity of nucleus is high
a.mitosis b.interphase c.meiosis d.cell cycle
65.LH triggers
a.cessation of oogenesis b.breakdown of oocyte c.ovulation d.development of zygote
66. Syphilis is caused by
a.HIV/AIDS b.pseudomonas pyogenes c.treponema pallidum d.neisseria
67. Muscles are made up of many cells which are reflected to as
a.myofilaments b.myofibrils c.sarcolema d.muscles fiber
68.the length of myofibril from one Z-band to the next is known as
a. sarcomere b.sarcolemma c.sarcoplasm d.muscle fiber
69.Ca ions released during a muscle fiber contraction attach with
a. myosin b.actin c.tropomyosin d.troponin
70. A muscle condition resulting from the accumulation of lactic acid and ionic imbalane is called
a.tetany b.muscle fatigue c.cramp d.tetanus
71.the pigment which stores oxygen in muscles
a.Hemoglobin .myoglobin c. myosin d.actinomyosin
72. Neurosecretory cells are present in which part of brain
a.hypothalamus b.midbrain c.pons d.cerebellum
73. Function of glucagon
a.glycogenàglucose b.glucoseàglycogen c.glucoseàlipids d.glucoseàproteins
74.addison’s disease is caused due to destruction of
a.adrenal cortex b.pituitary adrenal axis c.adrenall medulla d.hypothalamus
75. which group is made up of amino acids and their
dervatives
a.vasopressin and ADH b.epinephrine and non-epinephrine c.oestrogen and testosterone d.insulin and glucagon
76. Thymus gland is involved in the maturation of
a.platelets b.B-lymphocytes c.eosinophils d.T-lymphocytes
77. In passive immunity w.o.f component are injected into blood
a.antigens b.immunogens c.serum d.immunoglobulins
78.mucous membranes offer
a. physical barriers b. mechanical barriers c.chemical barriers d.biological barriers
79. Immediate protection is obtained from
a.passive immunity b.active immunity c.vaccination d. natural active immunity
80. Immunity in which T-cells recognize the antigens or microorganisms is
a.tissue grafting b.phagocytosis c.cell mediated immunity/response d.hormonal immunity/response
81. Oxidative phosphorylation, synthesis of ATP in the presence of oxygen occurs in
a. all types of cells b. all anaerobic cells c.all primitive cells d.all aerobic cells
82. Glycolysis is the breakdown of glucose into two molecules of
a.glycerate b.lactic acid c.pyruvate d.succinic acid
83. Before entering into kreb’s cycle , the pyruvate is first decarboxylated and oxidized into
a.alpha ketoglutaric acid b.citric acid c.glyceric acid d.acetic acid
Physics..!
84. An object having spherical shape of radius r experiences a retarding force F from a fluid of co-efficient of viscosity ŋ when moving through the fluid with speed v. what is the ratio of retarding force to speed
a.6πŋr^2 b.6 πŋ/r^2 c.6 πŋr d.6 πŋ/r
85. For interference of light waves to take place, the required condition is
a. path difference of the light waves from the two sources must be large
b.the interfering waves must be non-coheren
c.the light waves may come from diff sources
d. the light waves may come from two coherent sources
86. The property of bending of light around an obstacle and spreading of light waves into geometric shadow of an obstacle is called
a. diffraction b.polarization c.quantization of light d.interference of light
87.the normal human eye can focus a sharp image of an object on the eye if the object is located at certain distance called
a. least point b.near point c.far point d.distinct point
88.a source of sound wave emits wave of frequency ‘f’. if ‘v’ is the speed of sound waves, then what will be the wavelength of the waves
a.v/f b.vf c.(v-u)/f d.(v-u)f
89.spectrum of star light is measured and the wavelength of one of the lines as sodium’s line is found to be 589nm. The same line has the wavelength of 497nm when observed in the laboratory. This means the star is
a. moving away from the earth b.moving towards the earth c.stationary d.revolving around the planet
90. What is the period of mass spring system during SHM if the ratio of mass to spring constant is ¼
a.π b.2π c.1/π d.1/2π
91. A wire is stretched by a force which causes an extension . the energy is stored in it only when:
a. extension of wire is proportional to force applied b. cross section of wire remains constant c.the wire is not stretched beyond its elastic limit d.the weight of wire is negligible
92. Which statement is correct
a. elasticity is that property of the body which enables the body to regain its original dimension
b. elasticity is that property of the body that does not allows the body to return to its original shape
c.elasticity is that property of the body which enables the body to regain its original dimension and original shape after the stress is removed
d.elasticity is that property which obey’s hooke’s law
93 which expression is of rms speed of a gas having n number of molecules contained in the container
a. sq.root(v1^2 + v2^2 + v3^2+….. vn^2)/n
b. (v1^2 + v2^2 + v3^2+….. vn^2)/n
c. sq.root(v1 + v2 + v3+….. vn)/n
d. (v1 + v2+ v3+….. vn)/n
94. For a gas of volume V in its equilibrium state, if the pressure does change with time then total K.E of gas is constant because
a. collision b/w gas molecules occur b. collisions b/w gas molecules occur linearly c.collision must be elastic d.collision must be inelastic
95. When the dimensions of both sides of an equation are equal then the equation is said to be
a.simultaneous b. homogenous c. instantaneous d.quadratic
96. Relation for wavelength
a.λ=v/f b.λ=cf c.λ=v-u/f d.λ=v-u*f
97.4200V is used in X-ray tube to accelarate electron the speed of X-ray
a.2.*10^8 b.3*10^8 c.2*10^7 d.3*10^9
98.the shortest wavelength of continuous X-ray, emitted from an X-ray tube , depend on
a.current in tube b.voltage applied c.nature of tube d. at no. of target.
99. In which of the fpllowing detectors impulse is independent of particle
a.GM counter b. solid state detector c.wilson cloud chamber d.all
100.half life of radon
a.1500 yr b.23.5 min c.3.8 days d.4*10^789
101. Half life of radioactive element is 1500 yrz the fraction of sample that left after 600 years
a. ½ b. 1/16 c. 1/8 d.1/4
102. 2A current passes through a resistance to certain battery, if the resistance is replaced by double resistance current became
a. 2A b.4A c.6A d.1A
103. Electron gun in CRO contains
a.filament, grid,anode,cathode b.cathode,anode,capacitor,screen
c.emitter,base,collector d.resistance,capacitor,inductor
104. Two long parallel wires repel each other. What would be the reason
a.both carry current in same direction b.both carry current in opposite direction c.wire 1 has current but wire 2 has no current d.wire 2 has current wire 1 has no current
105. If the no of turns of a solenoid is doubled but then current in the coil and radius of the coil remains same, then what will be the magnetic flux density produced by the coil
a. it will be halved b.it increases by different amount at different points
c.remains unchanged d.will be doubled
106. Which is used to estimate the circulation of blood in a patient?
a.C-14 b.C-12 c.P-32 d.Na-23
107. In order to double the amount of absorbed dose in gray what step should be taken
a.energy must be quartered b.energy must be halved c. energy must be increases 4 times d. energy must be doubled
108.which of the following is the proper way to study the sinusoidal waveform of the voltage
a.voltage is connected to X input and the time base is switched of
b. voltage is connected to Y input and the time base is switched on
c. voltage is connected to Y input and the time base is switched of
d. voltage is connected to X input and the time base is switched on.
109.what is the order of wavelength of X-rays
a.10^-6 b.10^-10 c.10^-3 d.10^0
110. A laser beam is
a. non coherent b.mono chromatic c. both d.none
111. What is the torque acting on the pendulum of length L inclined at an angleθ
a. mgL b.mgLsinθ c.0 d.mgLcosθ
112. Cathode rays are
a.dependent on nature of gas b.depend on target material c.independent on nature of gas d. none
113.1 degree is equal to
a.π/180 b.180/π c.2π/180 d.π/57.3
114.if the resistance in the circuit is doubled then what’s the current now
a.half b.0 c.double d.constant
115. A monochromatic light of wavelength λ is used to produce the diffraction pattern through a single slit of width X. which one of the following represents the intensity distribution across the screen?
a.vasopressin and ADH b.epinephrine and non-epinephrine c.oestrogen and testosterone d.insulin and glucagon
76. Thymus gland is involved in the maturation of
a.platelets b.B-lymphocytes c.eosinophils d.T-lymphocytes
77. In passive immunity w.o.f component are injected into blood
a.antigens b.immunogens c.serum d.immunoglobulins
78.mucous membranes offer
a. physical barriers b. mechanical barriers c.chemical barriers d.biological barriers
79. Immediate protection is obtained from
a.passive immunity b.active immunity c.vaccination d. natural active immunity
80. Immunity in which T-cells recognize the antigens or microorganisms is
a.tissue grafting b.phagocytosis c.cell mediated immunity/response d.hormonal immunity/response
81. Oxidative phosphorylation, synthesis of ATP in the presence of oxygen occurs in
a. all types of cells b. all anaerobic cells c.all primitive cells d.all aerobic cells
82. Glycolysis is the breakdown of glucose into two molecules of
a.glycerate b.lactic acid c.pyruvate d.succinic acid
83. Before entering into kreb’s cycle , the pyruvate is first decarboxylated and oxidized into
a.alpha ketoglutaric acid b.citric acid c.glyceric acid d.acetic acid
Physics..!
84. An object having spherical shape of radius r experiences a retarding force F from a fluid of co-efficient of viscosity ŋ when moving through the fluid with speed v. what is the ratio of retarding force to speed
a.6πŋr^2 b.6 πŋ/r^2 c.6 πŋr d.6 πŋ/r
85. For interference of light waves to take place, the required condition is
a. path difference of the light waves from the two sources must be large
b.the interfering waves must be non-coheren
c.the light waves may come from diff sources
d. the light waves may come from two coherent sources
86. The property of bending of light around an obstacle and spreading of light waves into geometric shadow of an obstacle is called
a. diffraction b.polarization c.quantization of light d.interference of light
87.the normal human eye can focus a sharp image of an object on the eye if the object is located at certain distance called
a. least point b.near point c.far point d.distinct point
88.a source of sound wave emits wave of frequency ‘f’. if ‘v’ is the speed of sound waves, then what will be the wavelength of the waves
a.v/f b.vf c.(v-u)/f d.(v-u)f
89.spectrum of star light is measured and the wavelength of one of the lines as sodium’s line is found to be 589nm. The same line has the wavelength of 497nm when observed in the laboratory. This means the star is
a. moving away from the earth b.moving towards the earth c.stationary d.revolving around the planet
90. What is the period of mass spring system during SHM if the ratio of mass to spring constant is ¼
a.π b.2π c.1/π d.1/2π
91. A wire is stretched by a force which causes an extension . the energy is stored in it only when:
a. extension of wire is proportional to force applied b. cross section of wire remains constant c.the wire is not stretched beyond its elastic limit d.the weight of wire is negligible
92. Which statement is correct
a. elasticity is that property of the body which enables the body to regain its original dimension
b. elasticity is that property of the body that does not allows the body to return to its original shape
c.elasticity is that property of the body which enables the body to regain its original dimension and original shape after the stress is removed
d.elasticity is that property which obey’s hooke’s law
93 which expression is of rms speed of a gas having n number of molecules contained in the container
a. sq.root(v1^2 + v2^2 + v3^2+….. vn^2)/n
b. (v1^2 + v2^2 + v3^2+….. vn^2)/n
c. sq.root(v1 + v2 + v3+….. vn)/n
d. (v1 + v2+ v3+….. vn)/n
94. For a gas of volume V in its equilibrium state, if the pressure does change with time then total K.E of gas is constant because
a. collision b/w gas molecules occur b. collisions b/w gas molecules occur linearly c.collision must be elastic d.collision must be inelastic
95. When the dimensions of both sides of an equation are equal then the equation is said to be
a.simultaneous b. homogenous c. instantaneous d.quadratic
96. Relation for wavelength
a.λ=v/f b.λ=cf c.λ=v-u/f d.λ=v-u*f
97.4200V is used in X-ray tube to accelarate electron the speed of X-ray
a.2.*10^8 b.3*10^8 c.2*10^7 d.3*10^9
98.the shortest wavelength of continuous X-ray, emitted from an X-ray tube , depend on
a.current in tube b.voltage applied c.nature of tube d. at no. of target.
99. In which of the fpllowing detectors impulse is independent of particle
a.GM counter b. solid state detector c.wilson cloud chamber d.all
100.half life of radon
a.1500 yr b.23.5 min c.3.8 days d.4*10^789
101. Half life of radioactive element is 1500 yrz the fraction of sample that left after 600 years
a. ½ b. 1/16 c. 1/8 d.1/4
102. 2A current passes through a resistance to certain battery, if the resistance is replaced by double resistance current became
a. 2A b.4A c.6A d.1A
103. Electron gun in CRO contains
a.filament, grid,anode,cathode b.cathode,anode,capacitor,screen
c.emitter,base,collector d.resistance,capacitor,inductor
104. Two long parallel wires repel each other. What would be the reason
a.both carry current in same direction b.both carry current in opposite direction c.wire 1 has current but wire 2 has no current d.wire 2 has current wire 1 has no current
105. If the no of turns of a solenoid is doubled but then current in the coil and radius of the coil remains same, then what will be the magnetic flux density produced by the coil
a. it will be halved b.it increases by different amount at different points
c.remains unchanged d.will be doubled
106. Which is used to estimate the circulation of blood in a patient?
a.C-14 b.C-12 c.P-32 d.Na-23
107. In order to double the amount of absorbed dose in gray what step should be taken
a.energy must be quartered b.energy must be halved c. energy must be increases 4 times d. energy must be doubled
108.which of the following is the proper way to study the sinusoidal waveform of the voltage
a.voltage is connected to X input and the time base is switched of
b. voltage is connected to Y input and the time base is switched on
c. voltage is connected to Y input and the time base is switched of
d. voltage is connected to X input and the time base is switched on.
109.what is the order of wavelength of X-rays
a.10^-6 b.10^-10 c.10^-3 d.10^0
110. A laser beam is
a. non coherent b.mono chromatic c. both d.none
111. What is the torque acting on the pendulum of length L inclined at an angleθ
a. mgL b.mgLsinθ c.0 d.mgLcosθ
112. Cathode rays are
a.dependent on nature of gas b.depend on target material c.independent on nature of gas d. none
113.1 degree is equal to
a.π/180 b.180/π c.2π/180 d.π/57.3
114.if the resistance in the circuit is doubled then what’s the current now
a.half b.0 c.double d.constant
115. A monochromatic light of wavelength λ is used to produce the diffraction pattern through a single slit of width X. which one of the following represents the intensity distribution across the screen?
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