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ANS SET-5, Mero eye Entrance Group

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Mero Eye
Mero Eye

1. The lipid layer of the skin prevents evaporation while the mucin layer maintains stability. 2. Cone deficiency results in difficulty with bright light vision as cones help with day vision. 3. In aphakic patients, the loss of the lens results in a loss of accommodation due to the absence of the lens.

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Answers for set-5 1.b Lipid layer- prevents evaporation Mucin layer- maintains stability 2. c Secondary function- depression Tertiary function- abduction 3. a 4. b 5. a 6. a Cone helps in day light vision so if cone deficiency is present, there will be difficult for bright light vision. 7. d 8. c Due to absence of lens in aphakic patient, there is loss of accommodation 9. c Posterior focal length- 22.9mm 10. b 11. a In case of JCC, after the axis is corrected then only power is corrected. 12. b Iridodyalysis- iris tear near the ciliary body Rubeosis iridis- neovascularization of iris 13. a @ posterior pole- 0.25mm 14. b Palpebral & limbal conjunctiva are adherent. 15. c
16. b Cornea have positive electrical potential 17. a Gentamycin- topical antibiotics Interferon- antiviral 18. d Near point- punctum proximum Range of accommodation- difference between far point & near ppoint of accommodation 19. c 20. a 21. c Arden ration- light peak: dark tough 22. c 23. b Flattening(1mm)- +6D 24. d 25. a Around limbus- ciliary congestion 26. a Rods and cones are absent at blind spot 27. d Near point-25cm 28. c 29. d Fungal- satellite lesions 30. a Protanopia- red color deficiency Deuteranopia- green color deficiency 31. b 32. c
Visual acuity is usually measured at 20ft/6m. 33. a Against-the rule astigmatism- vertical meridian of eye is flatter than horizontal meridian Oblique astigmatism- two meridians perpendicular to each other. 34. d Evisceration- all intraocular contents except sclera & optic nerve are removed. 35. b 36. a 37. c Cornea- 1.37 Lens- 1.39 Aqueous=vitreous=1.336 38. a 39. b Lenticonus- conical projection of lens center 40. a 41. b R(max)=?2 /g =100 (? = 45¡ã) H(max)= ?2 /2g*sin2 ? = ?2 /2g (where ? = 90?) = 100/2 = 50 m 42. a For min acceleration, force should be minimum So F(min)= ?1-?2= 4-2 = 4N F= m? ??? ? ???=4/2 = 2m/s2 43.c If angle of incidence is equal to polarizing angle, the reflected and refracted rays are mutually perpendicular. 44.c
Linear momentum is conserved in every collision, but energy is conserved in only elastic collision. 45.a When one side of equi convex lens is silvered, it behaves as concave mirror & convex mirror in case of equiconcave lens. 46. c P= work done time taken = qv/t = IV P= 0.5*6 = 3 47. d R=?*l/A Here, volume always remains same so, R= ? (l*A)/(A*A) = ??/A2 R¡Ø 1/A2 R¡Ø 1/(?d2 /4)2 R¡Ø (1/d4 ) 48. c Work done by magnetic force on charged particle is zero. Hence, magnetic field can change any direction of motion of charged particles. But, when moving charged particle is subjected to electric field, its K.E changes. 49. b K.E= 1 2 mv2 = p2 /2m P=¡Ì2?? For equal KE, P¡Ø ¡Ì ? 50. c ??0 100?0 = ??32 212?32 C/100 = (-40-32)/180 C= -40 ?C 51. d Anti knocking property is measured in terms of octane number. Higher the octane number, better is the fuel.
52. a Stability of carbocation follows order 3?>2?>1?. So, 3? alcohol undergo dehydration more easily. 53. a 54. c Activation energy: excess of energy the reactant requires to yield product. Hence, the catalyst lowers activation energy. 55. b Surface tension/ angle of contact decreases with temperature increase but surface tension of molten Cu or Cd increases with rise in temperature. 56. b Principal quantum number- size of orbit Azimuthal quantum number- shape of orbital Spin quantum number- spin of electron 57. a Electrophile: electrone deficient species Nucleophile: nucleus/hydrogen loving species 58. d Chile salt petre- NaNO3 Indian salt petre- KNO3 Rock salt petre- NaCl 59. b 60. b 61. b 62. d Hemixis: also called purification act due to reconstitution of macronucleus in paramecium without any change in micronucleus. Autogamy: self fertilization Endomixis: also called parthenogenesis; sexual reproduction without fertilization Cytogamy- general fertilization of cell 63. a
Archeocytes- largest amoebocytes (can be converted into any other type of cell) Trophocytes- nutritive cell Thesocytes- contains reserve food Collencytes- connecting cell; secretes collagen fiber 64. b Venus flower basket- Euplectella Boring sponge- cliona Mermaid¡¯s gloves- chalina Urn sponge- sycon 65. c Jelly fish- coelenterata Shell fish- arthopoda Cray fish- arthopoda Silver fish- arthopoda Cuttle fish- Mollusca Devil fish- Mollusca Star fish- Echinodermata All these are false fishes. 66. b Coelenterata- mouth Platyhelminthes- solenocytes/flame cells/protonephridics Nemathelminthe- renette cell/H-shaped cell Mollusca- keber¡¯s gland/pericardial gland 67. c Dracunuculus medinesis also called guinea worm/ fiery serpent/ medina worm is so large that one can feel it by touching on skin. It lives in sub-cutaneous tissue forming blisters. 68. c Septal nephridia- 15th to last Integumentary nephridia- 3rd to last 69. a
70. c 71. a Presence of oil secreting gland containing myrocine enzyme is important anatomical feature. Ovary in uniocular at beginning but binocular at maturity due to false septum called replum. Obliquely placed ovary belongs to family solanaceae. 72. a Alcohol fermentation takes place in presence of yeast (zymase). 73. b Nucleoside+phosphate= nucleotide= nucleic acid 74. c Pteridophytes are vascular cryptogams. Also known as snake of plant kingdom. 75.a Free living bacteria- azotobactor(aerobic), clostridium (anaerobic) Symbiotic bacteria- rhizobium N2 fixing bacteria- converts atmospheric N2 into biologically acceptance form in soil 76. c Endoplasmic reticulum- enzyme factory of cell Peptine of cell Endoskeleton Membrane factory Membrane protein factory 77. b 78. b 79. c 80. d 81. a if alcohol is consumed in empty stomach, 80% of it is absorbed by small intestine while 20% by stomach. 82. a 83. d 84. c 85. b
Smallest cells- sperm cell 86. c 87. d Breast cancer- second most common cancer after cervix. 88. a 89. d Sedative- induce sleep Narcotics- plant based product such as opium, heroine Hallucinogens- cause hallucinations, which can alter a person's perception of reality 90. c 91. d 92. c 93. b The living part of the hair is the very bottom part surrounding the papilla, called the bulb. The cells of the bulb divide every 23 to 72 hours, remarkably faster than any other cell in the body. 94. c 3 tiny muscles named malleus, incus & stapes are found in ear. 95. b A layer of very fine calcium crystals is among the structures in the inner ear that help to regulate balance. Balance is a choreographed arrangement that takes sensory information from a variety of organs and integrates it to tell the body where it is in related to gravity and the earth. 96. b 97. a Axon- longer fibres 98. c 99. b 100. d

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ANS SET-5, Mero eye Entrance Group

  • 1. Answers for set-5 1.b Lipid layer- prevents evaporation Mucin layer- maintains stability 2. c Secondary function- depression Tertiary function- abduction 3. a 4. b 5. a 6. a Cone helps in day light vision so if cone deficiency is present, there will be difficult for bright light vision. 7. d 8. c Due to absence of lens in aphakic patient, there is loss of accommodation 9. c Posterior focal length- 22.9mm 10. b 11. a In case of JCC, after the axis is corrected then only power is corrected. 12. b Iridodyalysis- iris tear near the ciliary body Rubeosis iridis- neovascularization of iris 13. a @ posterior pole- 0.25mm 14. b Palpebral & limbal conjunctiva are adherent. 15. c
  • 2. 16. b Cornea have positive electrical potential 17. a Gentamycin- topical antibiotics Interferon- antiviral 18. d Near point- punctum proximum Range of accommodation- difference between far point & near ppoint of accommodation 19. c 20. a 21. c Arden ration- light peak: dark tough 22. c 23. b Flattening(1mm)- +6D 24. d 25. a Around limbus- ciliary congestion 26. a Rods and cones are absent at blind spot 27. d Near point-25cm 28. c 29. d Fungal- satellite lesions 30. a Protanopia- red color deficiency Deuteranopia- green color deficiency 31. b 32. c
  • 3. Visual acuity is usually measured at 20ft/6m. 33. a Against-the rule astigmatism- vertical meridian of eye is flatter than horizontal meridian Oblique astigmatism- two meridians perpendicular to each other. 34. d Evisceration- all intraocular contents except sclera & optic nerve are removed. 35. b 36. a 37. c Cornea- 1.37 Lens- 1.39 Aqueous=vitreous=1.336 38. a 39. b Lenticonus- conical projection of lens center 40. a 41. b R(max)=?2 /g =100 (? = 45¡ã) H(max)= ?2 /2g*sin2 ? = ?2 /2g (where ? = 90?) = 100/2 = 50 m 42. a For min acceleration, force should be minimum So F(min)= ?1-?2= 4-2 = 4N F= m? ??? ? ???=4/2 = 2m/s2 43.c If angle of incidence is equal to polarizing angle, the reflected and refracted rays are mutually perpendicular. 44.c
  • 4. Linear momentum is conserved in every collision, but energy is conserved in only elastic collision. 45.a When one side of equi convex lens is silvered, it behaves as concave mirror & convex mirror in case of equiconcave lens. 46. c P= work done time taken = qv/t = IV P= 0.5*6 = 3 47. d R=?*l/A Here, volume always remains same so, R= ? (l*A)/(A*A) = ??/A2 R¡Ø 1/A2 R¡Ø 1/(?d2 /4)2 R¡Ø (1/d4 ) 48. c Work done by magnetic force on charged particle is zero. Hence, magnetic field can change any direction of motion of charged particles. But, when moving charged particle is subjected to electric field, its K.E changes. 49. b K.E= 1 2 mv2 = p2 /2m P=¡Ì2?? For equal KE, P¡Ø ¡Ì ? 50. c ??0 100?0 = ??32 212?32 C/100 = (-40-32)/180 C= -40 ?C 51. d Anti knocking property is measured in terms of octane number. Higher the octane number, better is the fuel.
  • 5. 52. a Stability of carbocation follows order 3?>2?>1?. So, 3? alcohol undergo dehydration more easily. 53. a 54. c Activation energy: excess of energy the reactant requires to yield product. Hence, the catalyst lowers activation energy. 55. b Surface tension/ angle of contact decreases with temperature increase but surface tension of molten Cu or Cd increases with rise in temperature. 56. b Principal quantum number- size of orbit Azimuthal quantum number- shape of orbital Spin quantum number- spin of electron 57. a Electrophile: electrone deficient species Nucleophile: nucleus/hydrogen loving species 58. d Chile salt petre- NaNO3 Indian salt petre- KNO3 Rock salt petre- NaCl 59. b 60. b 61. b 62. d Hemixis: also called purification act due to reconstitution of macronucleus in paramecium without any change in micronucleus. Autogamy: self fertilization Endomixis: also called parthenogenesis; sexual reproduction without fertilization Cytogamy- general fertilization of cell 63. a
  • 6. Archeocytes- largest amoebocytes (can be converted into any other type of cell) Trophocytes- nutritive cell Thesocytes- contains reserve food Collencytes- connecting cell; secretes collagen fiber 64. b Venus flower basket- Euplectella Boring sponge- cliona Mermaid¡¯s gloves- chalina Urn sponge- sycon 65. c Jelly fish- coelenterata Shell fish- arthopoda Cray fish- arthopoda Silver fish- arthopoda Cuttle fish- Mollusca Devil fish- Mollusca Star fish- Echinodermata All these are false fishes. 66. b Coelenterata- mouth Platyhelminthes- solenocytes/flame cells/protonephridics Nemathelminthe- renette cell/H-shaped cell Mollusca- keber¡¯s gland/pericardial gland 67. c Dracunuculus medinesis also called guinea worm/ fiery serpent/ medina worm is so large that one can feel it by touching on skin. It lives in sub-cutaneous tissue forming blisters. 68. c Septal nephridia- 15th to last Integumentary nephridia- 3rd to last 69. a
  • 7. 70. c 71. a Presence of oil secreting gland containing myrocine enzyme is important anatomical feature. Ovary in uniocular at beginning but binocular at maturity due to false septum called replum. Obliquely placed ovary belongs to family solanaceae. 72. a Alcohol fermentation takes place in presence of yeast (zymase). 73. b Nucleoside+phosphate= nucleotide= nucleic acid 74. c Pteridophytes are vascular cryptogams. Also known as snake of plant kingdom. 75.a Free living bacteria- azotobactor(aerobic), clostridium (anaerobic) Symbiotic bacteria- rhizobium N2 fixing bacteria- converts atmospheric N2 into biologically acceptance form in soil 76. c Endoplasmic reticulum- enzyme factory of cell Peptine of cell Endoskeleton Membrane factory Membrane protein factory 77. b 78. b 79. c 80. d 81. a if alcohol is consumed in empty stomach, 80% of it is absorbed by small intestine while 20% by stomach. 82. a 83. d 84. c 85. b
  • 8. Smallest cells- sperm cell 86. c 87. d Breast cancer- second most common cancer after cervix. 88. a 89. d Sedative- induce sleep Narcotics- plant based product such as opium, heroine Hallucinogens- cause hallucinations, which can alter a person's perception of reality 90. c 91. d 92. c 93. b The living part of the hair is the very bottom part surrounding the papilla, called the bulb. The cells of the bulb divide every 23 to 72 hours, remarkably faster than any other cell in the body. 94. c 3 tiny muscles named malleus, incus & stapes are found in ear. 95. b A layer of very fine calcium crystals is among the structures in the inner ear that help to regulate balance. Balance is a choreographed arrangement that takes sensory information from a variety of organs and integrates it to tell the body where it is in related to gravity and the earth. 96. b 97. a Axon- longer fibres 98. c 99. b 100. d