Chapter Wise MDCAT Model Test-1Chapter Wise MDCAT Model Test-1

Answers:

Biology

1. c) Centriole

2. d) All of these

3. c) Nuclear membrane

4. c) Smooth endoplasmic reticulum has ribosomes attached to their surface and acts as site of protein synthesis

5. b) Nucleolus

6. d) Metacentric chromosome

7. d) Both (b) and (c)

8. c) Cisternae

9. c) Nucleic acids

10. c) Phosphate group

11. b) RNA

12. c) Inner membrane

13. c) Double-stranded circular DNA

14. b) Mesosomes

15. c) It is a non-membrane-bound structure within the nucleus.

16. d) Lowering the activation energy

17. b) The enzyme changes its shape upon substrate binding to achieve a perfect fit

18. b) Has a structure that resembles the substrate

19. b) A substance that binds covalently to the enzyme, permanently inactivating it.

20. a) Compound on which they work

21. a) Maltase

22. a) D-galactose and D-glucose

23. b) D-glucose and D-fructose

24. b) Endoplasmic Reticulum (ER)

25. c) Vesicles

26. c) Kinetochore

27. b) rRNA synthesis

28. c) Cellulose

29. c) Fructose

30. a) Muscle cells

31. c) Golgi Complex

32. c) Lysosomes

33. d) All

34. b) Animal cells are irregular/round, while plant cells are rectangular.

35. b) To decrease the activation energy of the reaction

36. b) They are consumed in the reactions they catalyze.

37. a) Translation

38. b) Lipid synthesis

39. d) Mechanical support

40. a) Nucleolus

41. d) Both B & C

42. b) Filamentous

43. d) Aldo-Hexose

44. b) Glycogen

45. c) Branched starch

46. b) Keratin

47. b) Pyrimidines

48. c) Adhesion and cohesion

49. c) Glycogen

50. c) Nucleic acid

51. c) 4°C

52. b) Sucrose

53. b) Deoxyribose

54. a) Cellulose

55. b) 2 amino acids

56. d) Trans face

57. a) Glycoprotein

58. c) Palmatic acid

59. d) Apoenzyme

60. d) Holoenzyme

61. c) Carbonic anhydrase

62. d) All of these

63. b) Induced-fit model

64. b) Prosthetic Group

65. d) 87KJ/mol

66. b) 4 → 0°C

67. b) Golgi apparatus

68. b) SER

69. c) Mitochondria

70. b) Nucleoid

71. c) Golgi apparatus

72. c) Mitochondria

73. d) Chromatin

74. c) Sarcoplasmic Reticulum

75. a) Endoplasmic Reticulum

76. b) Golgi Complex

77. d) Mitochondria

78. b) SER

79. b) Flexible active site

80. a) Non-competitive

81. c) 6000

Chemistry

82. a) 4s¹3d⁵

83. b) Electrons enter the lowest available energy level

84. d) b and c both

85. b) 2

86. d) Molecular shape

87. b) Decrease in bond angle

88. b) 3

89. c) 4g of He

90. b) 1.12 L

91. d) None

92. a) Hydrogen

93. d) Nitrogen > Helium > Hydrogen

94. a) 36

95. a) n

96. a) 9

97. a) ⁶C

98. d) All

99. b) N₂

100. a) Vector

101. b) NaCl

102. b) Anode to cathode

103. c) Protons

104. b) Spin quantum number

105. c) Beryllium

106. c) 4l + 2

107. b) Pauli Exclusion Principle

108. a) 0

109. d) All of these

110. d) 180g of glucose

111. b) 8 × Na

112. d) All of these

113. a) 6 moles

114. b) 1.5 mol

115. b) 2.0 moles of S₈

116. a) 1 mole of hydrogen atoms

117. a) 10.51 L (labeled as 10.51 CO₂)

118. c) 36g H₂O

119. a) 64g

120. a) 2

121. b) Reversible reaction

122. a) CO₂

123. b) sp² hybridization, trigonal planar shape

124. c) CH₄

125. d) sp³d → octahedral

126. b) 1 σ, 2 π

Physics

127. b) 1

128. b) 5N

129. a) A / √3

130. b) 15î + 10ĵ

131. c) ÂB̂ = B̂Â

132. b) 0°, 90° and 180°

133. b) 20√2 N-W

134. b) B⃗ = 2î + 1ĵ

135. d) 25km/hr

136. d) 315°

137. a) Tan⁻¹(1/3) vertical towards north

138. c) Zero

139. c) ABSinθ

140. c) 120°

141. c) Down

142. a) A⃗.B⃗/A

143. d) None

144. a) 10

145. c) C⃗ = A⃗ + B⃗

146. b) 30°

147. b) A straight line sloping up, slope = g

148. b) 4m/s

149. a) 30 m/s

150. b) 10 N s

151. a) 2 m/s

152. c) Both A & B

153. d) Zero

154. c) 17ms⁻¹

155. b) 2.5kg

156. a) 2m/s, 6m/s

157. b) 5.1m

158. b) 20m/s

159. a) 4m/s²

160. b) 13.5m

161. b) 12N.S

162. b) 9.8

English

163. b) Gerund phrase as object of verb

164. b) Infinitive phrase as subject

165. c) Gerund phrase

166. b) Infinitive phrase

167. b) Gerund phrase as subject

168. b) Gerund phrase after preposition

169. b) Infinitive phrase as subject

170. b) Infinitive phrase as object of verb

171. c) Gerund

Logical & Reasoning

172. d) O,F

173. a) P₁QVN

174. c) WWSS

175. d) + - ×

176. b) 74

177. c) K

178. a) 12

179. a) pqrpad

180. c) G