MCQOPTIONS
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MCQOPTIONS
This section includes 1412 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following vitamins are water soluble? |
| A. | Vit. A & Vit. B |
| B. | Vit. B & Vit. C |
| C. | Vit. C & Vit. D |
| D. | Vit. A & Vit. K |
| Answer» C. Vit. C & Vit. D | |
| 152. |
Which of the following vitamins help in the absorption of calcium? |
| A. | Vitamin A |
| B. | Vitamin D |
| C. | Vitamin B |
| D. | Vitamin C |
| Answer» C. Vitamin B | |
| 153. |
Which of the following vitamin helps in clotting of blood? |
| A. | Vitamin K |
| B. | Vitamin D |
| C. | Vitamin B1 |
| D. | Vitamin B2 |
| Answer» B. Vitamin D | |
| 154. |
Which of the following type of medicine is used for treating indigestion? |
| A. | Antibiotic |
| B. | Analgesic |
| C. | Antacid |
| D. | Antiseptic |
| Answer» D. Antiseptic | |
| 155. |
Which of the following tissue has large intercellular spaces?_x005F_x000D_ Â _x005F_x000D_ |
| A. | Xylem |
| B. | Parenchyma |
| C. | Sclerenchyma |
| D. | Collenchymas |
| Answer» C. Sclerenchyma | |
| 156. |
Which of the following transports water from the roots of the plant to its leaves? |
| A. | Xylem |
| B. | Phloem |
| C. | Both xylem and phloem |
| D. | Cortex |
| Answer» D. Cortex | |
| 157. |
Which of the following statements is NOT true of Meiosis? |
| A. | Meiosis takes place in two phases |
| B. | During meiosis, the genes of the parent cells are mixed in the resulting cells |
| C. | Meiosis takes place in gonads for production of gametes |
| D. | As a consequence of Meiosis, the number of chromosomes is doubled in the resulting cells |
| Answer» E. | |
| 158. |
Which of the following statement(s) is/are CORRECT?_x005F_x000D_ I. Oils containing unsaturated fatty acids should be used for cooking._x005F_x000D_ II Animal fats have saturated carbon chains._x005F_x000D_ III. Saturated fatty acids are generally harmful for health._x005F_x000D_ |
| A. | Only I and II |
| B. | Only I and III |
| C. | Only II and III |
| D. | All I, II and III |
| Answer» E. | |
| 159. |
Which of the following statements is most accurate regarding infection with parvovirus B19? |
| A. | Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors |
| B. | Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother |
| C. | Parvovirus B19 can be diagnosed by detection of viral RNA using PCR or hybridization assays |
| D. | Parvovirus B19 replicates in the host cell nucleus utilizing a virally encoded DNA polymerase to create a double- stranded DNA intermediate |
| Answer» B. Parvovirus B19 can cause hydrops fetalis via transplacental infection of a fetus in a seropositive mother | |
| 160. |
Which of the following statements best describes nutrient density? |
| A. | Consume a variety of foods from MyPyramid's ±ve major food groups every day. |
| B. | Consume foods that have the most nutrition for their kcalories |
| C. | Choose a number of diFerent foods within any given food group rather than the same old thing. |
| D. | All the above |
| Answer» C. Choose a number of diFerent foods within any given food group rather than the same old thing. | |
| 161. |
Which of the following statements is not true about metabolism? |
| A. | Younger people generally have a slower metabolism than adults. |
| B. | Basal metabolism is the amount of energy needed for sustaining life. |
| C. | Basal metabolism is measured by the amount of calories burned when your body is inactive. |
| D. | Metabolism is influenced by numerous factors, such as heredity and age. |
| Answer» B. Basal metabolism is the amount of energy needed for sustaining life. | |
| 162. |
Which of the following statements about vitamins is true? |
| A. | Vitamins have a small caloric value |
| B. | Vitamins can serve as an energy supply for the body if certain criteria are met |
| C. | Like protein and some minerals, vitamins contribute to the structure of the body |
| D. | Vitamins are indispensable for the maintenance of optimal health |
| Answer» E. | |
| 163. |
Which of the following statements about enzymes is not true? |
| A. | all enzymes have the same shape as their substrates |
| B. | enzymes are proteins |
| C. | enzymes work best at a specified ph |
| D. | the shape of an enzyme allows it to do its job |
| Answer» B. enzymes are proteins | |
| 164. |
Which of the following statements about DNA replication is true? |
| A. | Single‑strand binding proteins stabilize the open conformation of the unwound DNA. |
| B. | Okazaki fragments are DNA fragments synthesized on the leading strand. |
| C. | DNA polymerase adds dNTP monomers in the 3′-5′ direction. |
| D. | DNA gyrase unwinds the DNA double helix. |
| Answer» B. Okazaki fragments are DNA fragments synthesized on the leading strand. | |
| 165. |
Which of the following statements about ddntps is true? |
| A. | They have a hydrogen at the 3’ carbon of the sugar. |
| B. | DNA polymerase can add a new dNTP to a 3’ ddNTP. |
| C. | They have a free 3’-hydroxyl group on the ribose sugar. |
| D. | They have an oxygen at the 2’ carbon of the ribose sugar. |
| Answer» B. DNA polymerase can add a new dNTP to a 3’ ddNTP. | |
| 166. |
Which of the following statements about DNA replication is false? |
| A. | The enzyme that catalyzes DNA replication is DNA polymerase. |
| B. | Unwinding of the DNA molecule occurs as hydrogen bonds break. |
| C. | The process is known as semiconservative replication because one old strand is conserved in the new molecule. |
| D. | Replication occurs as each base is paired with another exactly like it. |
| Answer» E. | |
| 167. |
Which of the following statements about aldosterone is NOT correct? |
| A. | Aldosterone increases sodium reabsorption by increasing the number of Na+-K+ ATPase pumps in the luminal membrane of the proximal tubule. |
| B. | Aldosterone is produced in the adrenal cortex. |
| C. | Aldosterone is stimulated by decreased plasma sodium levels and increased plasma potassium levels. |
| D. | All of the above |
| Answer» B. Aldosterone is produced in the adrenal cortex. | |
| 168. |
Which of the following serve as antibodies? |
| A. | Proteins |
| B. | Lipids |
| C. | Carbohydrates |
| D. | Nucleic acids |
| Answer» B. Lipids | |
| 169. |
Which of the following serves as a nutritive tissue for the growing embryo? |
| A. | Ovule |
| B. | Zygote |
| C. | Ovary |
| D. | Endosperm |
| Answer» E. | |
| 170. |
Which of the following reproduce both, sexually as well as asexually? |
| A. | Hydra |
| B. | Amoeba |
| C. | ALgae |
| D. | Fungi |
| Answer» B. Amoeba | |
| 171. |
Which of the following represents the CORRECT scheme of sub-groups at various levels in classification? |
| A. | Kingdom → Phylum → Class → order → Family → Genus → Species |
| B. | Kingdom → Order → Class → Family → Genus → Species → Phylum |
| C. | Kingdom → Phylum → Order → Genus → Species → Class → Family |
| D. | Phylum → Kingdom → Class → Order → Genus → Family → Species |
| Answer» B. Kingdom → Order → Class → Family → Genus → Species → Phylum | |
| 172. |
Which of the following relation is true regarding the amounts of genetic material contributed by the father and mother to the child? |
| A. | Father >> Mother |
| B. | Father << Mother |
| C. | Father = Mother |
| D. | No relation can be determined |
| Answer» D. No relation can be determined | |
| 173. |
Which of the following plays an important role in photosynthesis? |
| A. | Chloroplast |
| B. | Centrosome |
| C. | Tonoplast |
| D. | Nematoblast |
| Answer» B. Centrosome | |
| 174. |
Which of the following protects the inner lining of the stomach from the action of the hydrochloric acid under the normal conditions? |
| A. | Villi |
| B. | Mucus |
| C. | Saliva |
| D. | Digestive Juices |
| Answer» C. Saliva | |
| 175. |
Which of the following plays an important part in photosynthesis? |
| A. | Chloroplast |
| B. | Centrosome |
| C. | Tonoplast |
| D. | Nematoblast |
| Answer» B. Centrosome | |
| 176. |
Which of the following plants have root nodules? |
| A. | Leguminous plants |
| B. | Parasitic plants |
| C. | Epiphytic Plants |
| D. | Aquatic Plants |
| Answer» B. Parasitic plants | |
| 177. |
Which of the following physiological symptoms are signs of stress? |
| A. | Arthritis and carpal tunnel syndrome |
| B. | Dental cavities and bone loss |
| C. | Headaches and elevated blood pressure |
| D. | Hearing and vision loss |
| Answer» D. Hearing and vision loss | |
| 178. |
Which of the following part of plant cell, is selectively permeable? |
| A. | Cell wall |
| B. | Cell membrane |
| C. | Cytoplasm |
| D. | Nucleus |
| Answer» C. Cytoplasm | |
| 179. |
Which of the following plant group has hidden reproductive organs?_x005F_x000D_ |
| A. | Bryophyta |
| B. | Thallophyta |
| C. | Pteridophyta |
| D. | All option are correct |
| Answer» E. | |
| 180. |
Which of the following plant tissues is capable of cell division? |
| A. | Parenchyma |
| B. | Sclerenchyma |
| C. | Meristem |
| D. | Xylem |
| Answer» D. Xylem | |
| 181. |
Which of the following pairs is mismatched? |
| A. | Hooke - cell theory |
| B. | van Leeuwenhoek - germ theory |
| C. | Lister - aseptic surgery |
| D. | Jenner - vaccines |
| Answer» C. Lister - aseptic surgery | |
| 182. |
Which of the following organisms can reproduce by regeneration and budding? |
| A. | Yeast |
| B. | Plasmodium |
| C. | Hydra |
| D. | Planaria |
| Answer» D. Planaria | |
| 183. |
Which of the following organisms does not fit into the Cell Theory? |
| A. | Bacteria |
| B. | Virus |
| C. | Fungi |
| D. | Plants |
| Answer» C. Fungi | |
| 184. |
Which of the following organs do not have blood vessels? |
| A. | Spleen |
| B. | Cornea |
| C. | Liver |
| D. | None of the above |
| Answer» C. Liver | |
| 185. |
Which of the following organisms are considered to be both Living and Non-living? |
| A. | Bacteria |
| B. | Fungi |
| C. | Algae |
| D. | Virus |
| Answer» E. | |
| 186. |
Which of the following organs produces the enzyme lipase? |
| A. | Pancreas |
| B. | Large Intestine |
| C. | Liver |
| D. | Small Intestine |
| Answer» B. Large Intestine | |
| 187. |
Which of the following organelles are called the Protein Factories of the cell? |
| A. | Mitochondria |
| B. | Ribosomes |
| C. | Lysosomes |
| D. | Chloroplasts |
| Answer» C. Lysosomes | |
| 188. |
Which of the following organelle is known as the 'Power House' of the cell? |
| A. | Golgi Bodies |
| B. | Ribosomes |
| C. | Mitochondria |
| D. | None of these |
| Answer» D. None of these | |
| 189. |
Which of the following represents the pair of sex chromosomes in women? |
| A. | XY |
| B. | XX |
| C. | YY |
| D. | None of these |
| Answer» C. YY | |
| 190. |
Which of the following organ does NOT belong to human excretory system? |
| A. | Kidneys |
| B. | Ureters |
| C. | Uterus |
| D. | Urethra |
| Answer» D. Urethra | |
| 191. |
Which of the following occurred in the presence of tetrodotoxin? |
| A. | The number of action potentials decreased. |
| B. | The size of the action potential increased. |
| C. | The number of action potentials increased. |
| D. | The size of the action potential decreased. |
| Answer» B. The size of the action potential increased. | |
| 192. |
Which of the following micro-organism causes diseases like polio and chicken pox? |
| A. | Bacteria |
| B. | Protozoa |
| C. | Algae |
| D. | Virus |
| Answer» E. | |
| 193. |
Which of the following may cause the breakdown of pyruvate into lactic acid in our muscles? |
| A. | Lack of water |
| B. | Lack of Oxygen |
| C. | Lack of carbon dioxide |
| D. | Lack of nitrogen_x005F_x000D_ |
| Answer» C. Lack of carbon dioxide | |
| 194. |
Which of the following is true of osmosis? |
| A. | it is a type of diffusion |
| B. | movement is against water's concentration gradient |
| C. | requires energy |
| D. | All of the above |
| Answer» E. | |
| 195. |
Which of the following leads to the production of urea? |
| A. | Synthesis of protein from amino acids |
| B. | Oxidation of glucose |
| C. | Degradation of amino acids |
| D. | Incomplete oxidation of fatty acids |
| Answer» D. Incomplete oxidation of fatty acids | |
| 196. |
Which of the following is true of kinetochores? |
| A. | They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis. |
| B. | They are the sites at which microtubules attach to chromosomes. |
| C. | They are located at the center of the centrosome and organize tubulin into spindle fibers. |
| D. | They cross at the cell's equator and move against each other, causing the cell to elongate. |
| Answer» C. They are located at the center of the centrosome and organize tubulin into spindle fibers. | |
| 197. |
Which of the following is true of enzymes? |
| A. | Enzymes lowers the activation energy for the chemical reaction |
| B. | Enzymes speed up the rate of a chemical reaction |
| C. | Both A & B |
| D. | Neither A nor B |
| Answer» D. Neither A nor B | |
| 198. |
Which of the following is true of annelids? |
| A. | They have an open circulatory system |
| B. | They have a nerve net |
| C. | They perform gas exchange across their skin |
| D. | They have pseudocoeloms |
| Answer» D. They have pseudocoeloms | |
| 199. |
Which of the following is the primary sex organ in man? |
| A. | Prostrate |
| B. | Testis |
| C. | Vas deferens |
| D. | Seminal vesicles |
| Answer» C. Vas deferens | |
| 200. |
Which of the following is true about veins? |
| A. | Veins carry blood away from the heart, while arteries carry blood to the heart. |
| B. | Veins are more muscular than arteries. |
| C. | Veins have valves; arteries do not. |
| D. | Veins have a smaller diameter lumen than arteries. |
| Answer» D. Veins have a smaller diameter lumen than arteries. | |