MDCAT MCQs for Entry Test with Answers Page 4 | Mcat Biology mcqs chapter wise pdf with answers

written by Assad Javaid | September 7, 2021

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152. On the basis of collected facts and figures, a scientist formulates a figurative statement called which among the following? 

  1. Hypothesis  
  2. Observation 
  3. Research Word 
  4. None Of Above 

153. Organelles are which among the following? 

  1. Unicellular Structures 
  2. Multi Cellular Structures 
  3. Sub-Cellular Structures  
  4. None of above 

154. Various tissue types combine to make up which among the following? 

  1. Cells 
  2. Organ System 
  3. Organelles 
  4. Organs  

155. Two or more populations of different species living and interacting in the same area from which among the following? 

  1. Biosphere 
  2. Ecosystem 
  3. Community  
  4. Population Systems 

156. A Group of similar cells that perform a specific function is which among the following? 

  1. Tissues  
  2. Organ 
  3. Organelle 
  4. Organ Systems 

157. A group of very similar inter breeding organisms conscious which among the following? 

  1. Biosphere 
  2. Species   
  3. Ecosystem 
  4. Community

158. Members of one species inhabiting the same area from which among the following? 

  1. Species 
  2. Community 
  3. Population  
  4. None of above 

159. Functional unit of DNA is which among the following? 

  1. Genes  
  2. Nucleus 
  3. Chromosomes 
  4. Nucleolus 

160. With different chemical arrangements and formation of complex molecules, the life emerges on the level of which among the following? 

  1. Tissues 
  2. Cells  
  3. Organs 
  4. Oran Systems

161. Malaria is associated with which among the following? 

  1. Culex Mosquito 
  2. Anopheles Mosquito  
  3. Curliest Mosquito 
  4. None of above

162. Biologist ‘Grassi’ discovered the life cycle of plasmodium in which among the following? 

  1. 1896 
  2. 1897 
  3. 1998  
  4. None of above 

163. The first antibiotic to be discovered was which among the following? 

  1. Cephalosporin 
  2. Penicillin  
  3. Amino glycosides 
  4. Erythromycin 

164. Immunization by vaccination was first introduced by which among the following? 

  1. Edward Jenner in 1795  
  2. Fleming in 1945 
  3. Florey & Chain in 1975 
  4. None of above 

165. The science of growing terrestrial plants in an aerated solutions is which among the following? 

  1. Hydrodynamics 
  2. Hydroponics 
  3. Hydro topics 
  4. None of them  

166. An educated guess is called which among the following? 

  1. Accumulated Data 
  2. Observation 
  3. Hypothesis  
  4. None of above

167. Dolly, the sheep was a highly successful clone form a somatic cell, reported back in which among the following? 

  1. 1992 
  2. 1994 
  3. 1996  
  4. None of above 

168. Crop rotation helps in which among the following?

  1. Growth of pathogens 
  2. Soil infertility 
  3. Slowing of crops growth 
  4. Eradication of disease  

169. The entire surface region of earth inhabited by living things is called which among the following? 

  1. Catashpere 
  2. Biosphere  
  3. Ecosphere 
  4. None of above 

170. The first living forms are which among the following? 

  1. Simple Unicellular Organisms 
  2. Complex Multicellular 
  3. Simple A cellular Organisms  
  4. None of above 

171. The science of growing terrestrial plants in an aerated solution is which among the following?

  1. Hydrodynamics 
  2. Hydroponics 
  3. Hydro Topics 
  4. None of above  

172. Of the following ,which of the most fundamental generalization in biology which among the following? 

  1. Cell theory  
  2. Micor-biology 
  3. Discovery of Cell 
  4. Microscope 

173. An educated guess is called which among the following? 

  1. Accumulated Data 
  2. Observation 
  3. Hypothesis  
  4. Inference 

174. Dolly, the sheep was a highly successful cone from a somatic cell, reported back in which among the following? 

  1. 1992 
  2. 1993 
  3. 1996  
  4. 1997 

175. Crop rotation helps in which among the following? 

  1. growth of pathogens 
  2. Soil infertility 
  3. Slowing of crops growth 
  4. Eradiation of disease  

176. Advantage of hydroponic farming is which among the following? 

  1. Spreads weeds and soil disease problem 
  2. Crops are inhibited to grow in arid parts of the world 
  3. Area required for cultivation is reduced  
  4. None of above 

177. The entire surface region of earth inhabited by living things is called which among the following? 

  1. Cat sphere 
  2. Ecosphere 
  3. Biosphere  
  4. None of above  

178. Chloroplast is which among the following? 

  1. Cell 
  2. Molecule 
  3. Organelle  
  4. Atom

179. “Plasmodium” in the human blood comes from which among the following? 

  1. Saliva of mosquito  
  2. Urine of Mosquito 
  3. Tears of Mosquito 
  4. Blood of Mosquito  

180. The theory which states that all animals and plants are composed of cells and cell products is known as which among the following?

  1. Cell Theory  
  2. Atomic Theory 
  3. Bohr’s Theory 
  4. None of the above 

181. Enzyme is a Greek word which means which among the following? 

  1. In Virus 
  2. In bacteria 
  3. In fungi 
  4. in yeast  

182. Who discovered that certain molecules of ribonucleic acid function as enzymes choose  which among the following is correct?

  1. Friedrich Wilhelm Kuhn Only 
  2. Friedrich and Thomas Cech 
  3. Thomas Cech only 
  4. Sidny Altman & Thomas cech  

183. Molecule of ribonucleic acid which function as enzymes are called which among the following? 

  1. Ribozymes  
  2. Ribozymes 
  3. Ribosomes 
  4. Ribosomes 

184. The Important roe play by enzymes during reaction is which among the following? 

  1. Increase energy of activation of reaction 
  2. Maintain energy of activation of reaction 
  3. Lower down energy of activation of reaction  
  4. No effect on energy of activation of reaction 

185. Naturally, most of the enzymes are which among the following? 

  1. Proteins  
  2. Lipids 
  3. Carbohydrates 
  4. Vitamins

186. Regarding nature of enzymes, which one is correct among the following? 

  1. The are inorganic catalyst 
  2. Large quantities are required to bring a change in large amount of substrate 
  3. The are non=specific in their nature but specific in their action 
  4. They are specific both in their nature and action 

187. Regarding enzyme molecules are which among the following? 

  1. Smaller in size than the substrate 
  2. Of same size as substrate 
  3. Greater in size than molecules  
  4. No relation with substrate 

188. Enzyme molecules are which among the following? 

  1. Heat sensitive but not pH sensitive 
  2. pH sensitive but not heat sensitive 
  3. Both A & B  
  4. None of above 

189. Fischer in 1898 proposed  by which among the following? 

  1. Induce Fit Theory 
  2. Enzyme Lock Theory 
  3. Catalyst Fit Theory 
  4. Key-Lock Theory   

190. Koshland in 1959 proposed by which among the following? 

  1. Enzyme Lock Theory 
  2. induce Fit theory  
  3. Catalyst Fit Theory 
  4. None of above

191. Compound Microscope was invented by Galileo in which among the following? 

  1. 1610  
  2. 1510 
  3. 1660 
  4. None of above 

192. The nucleus in the cell was discovered by which among the following? 

  1. Robert Brown in 1831  
  2. Robert Hooke in 1665 
  3. Robert Brown in 1665 
  4. Robert Hooke in 1831

193. Magnification of a microscope is calculated by which among the following? 

  1. Power of eye piece x magnifying power of its objective  
  2. Power of eye piece – magnifying power of its objective 
  3. Power of eye piece + magnifying power of its objective 
  4. None of above

194. The term “CELL” was first used by which among the following? 

  1. Robert Brown in 1831 
  2. Robert Hooke in 1665  
  3. Robert Brown in 1665 
  4. Robert Hooke in 1831 

195. Which scientist observed that the nucleus was surrounded by a fluid in the cell choose  which among the following is correct?

  1. Robert Brown in 1831 
  2. Robert Hooke in 1665 
  3. Schwann in 1839  
  4. Robert Hooke in 1831 

196. Cell Theory was proposed by which among the following? 

  1. Robert Hooke & Robert Brown 
  2. Robert Hooke & Schleiden 
  3. Schleiden & Schwann  
  4. Robert Hooke & Schwann

197. According to Cell Theory is which among the following? 

  1. Not all organism are composed of cells 
  2. There is no interaction between different cell unit 
  3. Cell is “de novo” structure, could arise form non-cellular 
  4. Cell can arise only by division of pre-existing cell  

198. The microscope in which visible light is used as source of illumination is which among the following? 

  1. Light microscope  
  2. X-ray microscope 
  3. Electron microscope 
  4. U-V ray microscope 

199. The Electron microscope has been designed by which among the following? 

  1. Jensen & Hand of Holland 
  2. Schleiden & Schwann of Germany 
  3. Knoll & Rusk of Germany  
  4. None of above

200. Microscope unaffected by magnetic field is  which among the following? 

  1. Electron microscope 
  2. Transmission Electron microscope 
  3. Scanning Electron Microscope 
  4. Light Microscope