McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Agriculture (BSc agri) .
Chapters
| 151. |
All prokaryotes are surrounded by a cell wall except |
| A. | Mycoplasm |
| B. | Sperochetes |
| C. | Actinomycetes |
| D. | Methanogena |
| Answer» A. Mycoplasm | |
| 152. |
Enzyme hydrolyzing bacterial cell wall |
| A. | Lysozome |
| B. | Reductase |
| C. | Protease |
| D. | Lysozyme |
| Answer» D. Lysozyme | |
| 153. |
Cows can digest straw because they contain |
| A. | Cellulose hydrolyzing microorganisms |
| B. | Protein hydrolyzing bacteria |
| C. | Lipid hydrolyzing microorganisms |
| D. | Amino acid degrading bacteria |
| Answer» A. Cellulose hydrolyzing microorganisms | |
| 154. |
The nucleus controls protein synthesis in the cytoplasm by sending |
| A. | Chromatin |
| B. | A DNA template |
| C. | m RNA molecule |
| D. | A pecialized protein |
| Answer» C. m RNA molecule | |
| 155. |
The site of energy production in a cell |
| A. | Micro body |
| B. | Chromosome |
| C. | Ribosome |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 156. |
Thylakoid is present in |
| A. | Mitochondria |
| B. | Chloroplast |
| C. | ER |
| D. | Golgi apparatus |
| Answer» B. Chloroplast | |
| 157. |
Which one of the following bacteria has found extensive use in genetic engineering work in plants? |
| A. | Clostridum septicum |
| B. | Xanthomonas oriza |
| C. | Bacillus coagulens |
| D. | Agrobacterium tumefaciens |
| Answer» D. Agrobacterium tumefaciens | |
| 158. |
Maximum application of animal cell culture technology today is in the production of |
| A. | Insulin |
| B. | Interferons |
| C. | Vaccines |
| D. | Edible proteins |
| Answer» C. Vaccines | |
| 159. |
Bacterial ribosomes are composed of |
| A. | Protein and DNA |
| B. | Protein and mRNA |
| C. | Protein and rRNA |
| D. | Protein and tRNA |
| Answer» C. Protein and rRNA | |
| 160. |
The potorespiration involves |
| A. | Calvin cycle |
| B. | Hatch-Slack cycle |
| C. | Glycolate cycle |
| D. | Kreb’s cycle |
| Answer» C. Glycolate cycle | |
| 161. |
Bioleaching is done by |
| A. | Protozoa |
| B. | Bacteria |
| C. | Algae |
| D. | All of the above |
| Answer» B. Bacteria | |
| 162. |
Inclusion bodies diagnostic of rabies are called |
| A. | Elementary bodie |
| B. | Pascheur bodies |
| C. | Negri bodies |
| D. | Guarnieri bodies |
| Answer» C. Negri bodies | |
| 163. |
Which of the following genera is most likely to contain organisms capable of surviving high temperature? |
| A. | Vibrio |
| B. | Pseudomonas |
| C. | Torula |
| D. | Coxiella |
| Answer» C. Torula | |
| 164. |
The major role of minor elements inside living organisms is to act as |
| A. | Co-factors of enzymes |
| B. | Building blocks of important amino acids |
| C. | Constituents of hormones |
| D. | Binder of cell structure |
| Answer» A. Co-factors of enzymes | |
| 165. |
The apparatus used to ma inta in a continuous culture |
| A. | Chemostat |
| B. | Autostat |
| C. | Thermostat |
| D. | Both a and c |
| Answer» A. Chemostat | |
| 166. |
The test used to detect the deamination of the amino acids by bacteria |
| A. | Nessler’s reagent test |
| B. | Proteolytic test |
| C. | Lactose test |
| D. | Rose aindole reagent test |
| Answer» A. Nessler’s reagent test | |
| 167. |
Diphtheria is caused by |
| A. | Corynebacterium |
| B. | Staphylococcus |
| C. | Streptococcus |
| D. | None of these |
| Answer» A. Corynebacterium | |
| 168. |
Koplic spots observed in the mucous membrane is characteristic feature of the disease |
| A. | Rubella |
| B. | Measles |
| C. | Mumps |
| D. | Influenza |
| Answer» C. Mumps | |
| 169. |
A bacterium containing prophage is called as |
| A. | Lytic |
| B. | Lysogen |
| C. | Lytogen |
| D. | None of these |
| Answer» B. Lysogen | |
| 170. |
The most infectious food borne disease is |
| A. | Tetanu |
| B. | Dysentery |
| C. | Gas gangrene |
| D. | Botulism |
| Answer» D. Botulism | |
| 171. |
An example for common air borne epidemic disease |
| A. | Influenza |
| B. | Typhoid |
| C. | Encephalitis |
| D. | Malaria |
| Answer» A. Influenza | |
| 172. |
Vrial genome can become integrated into the bacterial genomes are known as |
| A. | Prophage |
| B. | Temperatephage |
| C. | Bacteriophage |
| D. | Metaphage |
| Answer» B. Temperatephage | |
| 173. |
Rancidity of stored foods is due to the activity of |
| A. | Toxigenic microbes |
| B. | Proteolytic microbes |
| C. | Saccharolytic microbes |
| D. | Lipolytic microbes |
| Answer» D. Lipolytic microbes | |
| 174. |
Virion means |
| A. | Infectious virus particles |
| B. | Non-infectious particles |
| C. | Incomplete particles |
| D. | Defective virus particles |
| Answer» C. Incomplete particles | |
| 175. |
Virulence of the microorganisms can be reduced by |
| A. | Attenuation |
| B. | A virulence |
| C. | Inactivation |
| D. | Freezing |
| Answer» A. Attenuation | |
| 176. |
The test used for detection of typhoid fever |
| A. | WIDAL test |
| B. | ELISA |
| C. | Rosewaller test |
| D. | Westernblotting |
| Answer» A. WIDAL test | |
| 177. |
Bacteriophage capable of only lytic growth is called |
| A. | Temperate |
| B. | Avirulent |
| C. | Virulent |
| D. | None of these |
| Answer» A. Temperate | |
| 178. |
Diphtheria bacillus is otherwise known as |
| A. | Fried-Landers bacillus |
| B. | Kleb’s hofflers bacillus |
| C. | Frchs bacillus |
| D. | Koch’s bacillus |
| Answer» B. Kleb’s hofflers bacillus | |
| 179. |
Acridine dyes are more effective against |
| A. | Gram positive |
| B. | Gram negative |
| C. | Ricke Hsia |
| D. | Mycoplasma |
| Answer» A. Gram positive | |
| 180. |
In bacteria pigment bearing structures are |
| A. | Chloroplast |
| B. | Protoplast |
| C. | Sphaeroplast |
| D. | Chromatophores |
| Answer» D. Chromatophores | |
| 181. |
The procedure of differential staining of bacteria was developed by |
| A. | A.H. Gram |
| B. | H.C. Gram |
| C. | N.C. Gram |
| D. | H.A. Gram |
| Answer» B. H.C. Gram | |
| 182. |
Intermediate group of pathogen between bacteria and viruses which are intracellular parasites are called |
| A. | Mucoplasma |
| B. | Rickettsias |
| C. | Prions |
| D. | Virusoides |
| Answer» B. Rickettsias | |
| 183. |
Bacillus is an example of |
| A. | Gram positive bacteria |
| B. | Gram negative bacteria |
| C. | Virus |
| D. | Viroid |
| Answer» A. Gram positive bacteria | |
| 184. |
Amoebic dysentery in humans is caused by |
| A. | Plasmodium |
| B. | Paramecium |
| C. | Yeast |
| D. | Entamoeba histolytica |
| Answer» D. Entamoeba histolytica | |
| 185. |
Viral genome that can become integrated into bacterial genome is called |
| A. | Prophage |
| B. | Temperate phage |
| C. | Bacteriophage |
| D. | Metaphage |
| Answer» A. Prophage | |
| 186. |
Cytochromes are |
| A. | Oxygen acceptor |
| B. | ATP acceptors |
| C. | Electron acceptors |
| D. | Protein acceptors |
| Answer» C. Electron acceptors | |
| 187. |
The ce l ls hav ing F p lasm id in the chromosomes were termed as |
| A. | Hfr |
| B. | F– |
| C. | Hbr |
| D. | C+ |
| Answer» A. Hfr | |
| 188. |
Recombination process occurring through the mediation of phages is |
| A. | Conjunction |
| B. | Transduction |
| C. | Transformation |
| D. | Transfection |
| Answer» B. Transduction | |
| 189. |
Mordant used in grams staining is |
| A. | Crystal violet |
| B. | Iodine |
| C. | Saffranin |
| D. | All of these |
| Answer» B. Iodine | |
| 190. |
Parasitic form must contain |
| A. | Capsule |
| B. | Cell-wall |
| C. | Endospores |
| D. | Flagella |
| Answer» B. Cell-wall | |
| 191. |
Gram staining is an example for |
| A. | Simple staining |
| B. | Differential staining |
| C. | Negative staining |
| D. | None of these |
| Answer» D. None of these | |
| 192. |
Following Cocci are non-motile except |
| A. | Staphylococcu |
| B. | Meningococcus |
| C. | Gonococcus |
| D. | Rhodococcus agilis |
| Answer» A. Staphylococcu | |
| 193. |
Aspergillus fumigatus can infect |
| A. | Bird |
| B. | Animals |
| C. | Man |
| D. | All of them |
| Answer» B. Animals | |
| 194. |
Enterotoxin responsible for food poisoning is secreted by |
| A. | Enterococci |
| B. | Entamoeba histolytica |
| C. | Enterobacteriaceae |
| D. | Straphylococci |
| Answer» D. Straphylococci | |
| 195. |
Autolysis is done by |
| A. | Mitochondria |
| B. | Lysosomes |
| C. | Golgi bodies |
| D. | Peroxisomes |
| Answer» B. Lysosomes | |
| 196. |
A facultative anaerobic is |
| A. | Only grow anaerobically |
| B. | Only grow in the presence of O2 |
| C. | Ordinarily an anaerobe but can grow with O2 |
| D. | Ordinarily an aerobe but can grow in absence of O2 |
| Answer» D. Ordinarily an aerobe but can grow in absence of O2 | |
| 197. |
The percentage of O2 required by moderate anaerobe is |
| A. | 0% |
| B. | < 0.5% |
| C. | 2 – 8% |
| D. | 5 – 10% |
| Answer» C. 2 – 8% | |
| 198. |
Interferon is formed by |
| A. | Lymphocyte |
| B. | Lymphoblasts |
| C. | Fibroblasts |
| D. | All of these |
| Answer» D. All of these | |
| 199. |
Pigment bearing structure of bacteria are |
| A. | Mesosome |
| B. | Plasmids |
| C. | Mitochondria |
| D. | Chromophores |
| Answer» D. Chromophores | |
| 200. |
Spirochete is |
| A. | Gonococci |
| B. | Strphylococci |
| C. | Treponema pallidum |
| D. | Streptococci |
| Answer» C. Treponema pallidum | |
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