MCQOPTIONS
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MCQOPTIONS
This section includes 269 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The specific function of light energy in the process of photosynthesis to |
| A. | Active chlorophyll |
| B. | Split water |
| C. | Reduce carbon dioxide |
| D. | Synthesizes glucose |
| Answer» B. Split water | |
| 152. |
Food is presereved at low temprature because |
| A. | Bacterial attack is minimised |
| B. | For easy cooking |
| C. | For easy digestion |
| D. | All the above |
| Answer» B. For easy cooking | |
| 153. |
Exchange of substances between individual cells and their environment takes place try |
| A. | Active transport |
| B. | Osmosis |
| C. | Diffusion |
| D. | All of the above |
| Answer» E. | |
| 154. |
Prolonged water logging kills plant due to |
| A. | Stoppage of root respiration |
| B. | Dilution of soil nutrients |
| C. | Dilution of plant cell sap |
| D. | Leaching of nutrient |
| Answer» B. Dilution of soil nutrients | |
| 155. |
Respiration can occur in the |
| A. | Solanum tuberosum |
| B. | Spirogyra |
| C. | Yeast |
| D. | All the above |
| Answer» D. All the above | |
| 156. |
Maximum |
| A. | Fats |
| B. | Protein |
| C. | Starch |
| D. | Vitamin |
| Answer» B. Protein | |
| 157. |
After respiration the |
| A. | ADP |
| B. | ATP |
| C. | AMP |
| D. | Glucose |
| Answer» C. AMP | |
| 158. |
Closure of lid |
| A. | Tropic movement |
| B. | Turgor movement |
| C. | Paratonic movement |
| D. | Autonomic movement |
| Answer» D. Autonomic movement | |
| 159. |
Rate of photosynthesis |
| A. | Red light |
| B. | Yellow light |
| C. | Blue light |
| D. | Green light |
| Answer» E. | |
| 160. |
Photosynthesis proceeds |
| A. | Dark phase and light phase |
| B. | Light phase alone |
| C. | Light phase and dark phase |
| D. | Dark phase alone |
| Answer» D. Dark phase alone | |
| 161. |
Carbon dioxide |
| A. | Photosynthesis |
| B. | Asent of sap |
| C. | Transpiration |
| D. | Respiration |
| Answer» E. | |
| 162. |
The net gain of energy from one gram mole of glucose during |
| A. | 2 ATP |
| B. | 4 ATP |
| C. | 38 ATP |
| D. | 40 ATP |
| Answer» D. 40 ATP | |
| 163. |
Transpiration |
| A. | Guard cells |
| B. | Subsidiary cell |
| C. | Epidermal cell |
| D. | Mesophyll cells |
| Answer» B. Subsidiary cell | |
| 164. |
Which one of the following plants |
| A. | Almond |
| B. | Cycus |
| C. | Ground nut |
| D. | Mustrad |
| Answer» C. Ground nut | |
| 165. |
Example of |
| A. | Closing of flower |
| B. | Upward growth of stem |
| C. | Downward growth of root |
| D. | Lateral growth of root |
| Answer» D. Lateral growth of root | |
| 166. |
In biological system, the term osmosis involves the diffusion of |
| A. | Water |
| B. | Solutes |
| C. | Energy |
| D. | Both (a) and (b) |
| Answer» B. Solutes | |
| 167. |
Hydrothodes |
| A. | Stem |
| B. | Leaves |
| C. | Root |
| D. | All of these |
| Answer» C. Root | |
| 168. |
Name a biological process |
| A. | Photosynthesis |
| B. | Respiration |
| C. | Transpiration |
| D. | Fermentation |
| Answer» C. Transpiration | |
| 169. |
The process in which |
| A. | Respiration |
| B. | Guttation |
| C. | Transpiration |
| D. | Exosmosis |
| Answer» D. Exosmosis | |
| 170. |
Plant purifies |
| A. | Photosynthesis |
| B. | Respiration |
| C. | Transpiration |
| D. | Desiceation |
| Answer» B. Respiration | |
| 171. |
Which is the type of movement that occurs during |
| A. | Nastic movement |
| B. | Tactic movement |
| C. | Tropic movement |
| D. | Mutation |
| Answer» B. Tactic movement | |
| 172. |
Minute pore |
| A. | Cuticles |
| B. | Stomata |
| C. | Lenticle |
| D. | None of these |
| Answer» C. Lenticle | |
| 173. |
Compensation point |
| A. | Begining of photosynthesis |
| B. | Little photosynthesis |
| C. | Photosynthesis equal to rate of respiration |
| D. | Neither photosynthesis nor respiration |
| Answer» D. Neither photosynthesis nor respiration | |
| 174. |
Phototrophic and Geotropic |
| A. | Gibberellins |
| B. | Enzymes |
| C. | Auxin |
| D. | Cytokinis |
| Answer» D. Cytokinis | |
| 175. |
It is possible to produce |
| A. | Applying trace elements in tomato fruits |
| B. | Spraying mineral solution on plants |
| C. | Spraying hormones on flowers |
| D. | Applying fertilizers containing radioactive element |
| Answer» D. Applying fertilizers containing radioactive element | |
| 176. |
Respiration |
| A. | Endothermic process |
| B. | Exothermic Process |
| C. | Anabolic process |
| D. | Endagenic process |
| Answer» C. Anabolic process | |
| 177. |
ATP |
| A. | Adesino tri phosphate |
| B. | Adenine tri phosphate |
| C. | Adenosine tri phosphate |
| D. | Adenosine tetraphosphate |
| Answer» D. Adenosine tetraphosphate | |
| 178. |
Instrument meant for measuring the |
| A. | Potometer |
| B. | Oxygenometer |
| C. | Autometer |
| D. | Respirometer |
| Answer» E. | |
| 179. |
Role of chlorophyll |
| A. | Absorption of water |
| B. | Absorption of light energy |
| C. | Absorption of CO |
| D. | <sub>2</sub> |
| E. | None of these |
| Answer» C. Absorption of CO | |
| 180. |
Apoplastic movement |
| A. | Wall of the cells |
| B. | Intercelhlar spaces |
| C. | Both (a) and (b) |
| D. | Plasmodesmate |
| Answer» D. Plasmodesmate | |
| 181. |
Alcohol |
| A. | Anaerobic respiration |
| B. | Aerobic respiration |
| C. | Photosynthesis |
| D. | Glycolysis |
| Answer» B. Aerobic respiration | |
| 182. |
When concentration of solutes is |
| A. | Stoppes |
| B. | Increases |
| C. | Retards |
| D. | Remains Normal |
| Answer» C. Retards | |
| 183. |
Water exadation through |
| A. | Guttation |
| B. | Transpiration |
| C. | Hydrolysis |
| D. | Excretion |
| E. | .. |
| Answer» B. Transpiration | |
| 184. |
Flower in which |
| A. | Smooth and dry |
| B. | Rough and sticky |
| C. | Rough and dry |
| D. | Large in size |
| Answer» C. Rough and dry | |
| 185. |
Instaneous source of energy |
| A. | Glucose |
| B. | Fats |
| C. | Proteins |
| D. | Amino acids |
| Answer» B. Fats | |
| 186. |
The loss of water in the |
| A. | Transpiration |
| B. | Respiration |
| C. | Guttation |
| D. | Exosmosis |
| Answer» D. Exosmosis | |
| 187. |
Green pigment |
| A. | Haemoglobin |
| B. | Chlorophyll |
| C. | Lycopin |
| D. | None of these |
| Answer» C. Lycopin | |
| 188. |
Plant cooling occurs |
| A. | Assimilation |
| B. | Guttation |
| C. | Photorespiration |
| D. | Transpiration |
| Answer» E. | |
| 189. |
Photosynthetic organelles |
| A. | Mitochondria |
| B. | Golgi bodies |
| C. | Chloroplast |
| D. | Lysosomes |
| Answer» D. Lysosomes | |
| 190. |
The force by which water move |
| A. | Transpiration pull |
| B. | Root pressure |
| C. | Turgor pressure |
| D. | Imbibition pressure |
| Answer» C. Turgor pressure | |
| 191. |
The most accepted |
| A. | Sachs |
| B. | Bose |
| C. | Dixon and Joly |
| D. | Strasburger |
| Answer» D. Strasburger | |
| 192. |
Energy currency |
| A. | AMP |
| B. | ATP |
| C. | RNA |
| D. | DNA |
| Answer» C. RNA | |
| 193. |
The instrument by which rate of growth of plant is measured is |
| A. | Hydrometer |
| B. | Auxanometer |
| C. | Osmometer |
| D. | Potometer |
| Answer» C. Osmometer | |
| 194. |
Photosynthesis |
| A. | Blue light |
| B. | Sun light |
| C. | Red light |
| D. | Green light |
| Answer» D. Green light | |
| 195. |
Which of the following is required for |
| A. | Chlorophyll |
| B. | Water |
| C. | Notrogen |
| D. | Carbon dioxide |
| Answer» E. | |
| 196. |
Percentage of light energy |
| A. | 100% |
| B. | 50% |
| C. | 10% |
| D. | 1% to 2% |
| Answer» E. | |
| 197. |
First compund which is fixed during |
| A. | Phosphoglyceric acid |
| B. | Starch |
| C. | Glucose |
| D. | Diphosphoglyceric acid |
| Answer» D. Diphosphoglyceric acid | |
| 198. |
An element present in |
| A. | Ca |
| B. | Fe |
| C. | Mg |
| D. | S |
| Answer» D. S | |
| 199. |
Stomata |
| A. | Day time |
| B. | During night |
| C. | Not open |
| D. | None of these |
| Answer» B. During night | |
| 200. |
Translocation of carbohydrate |
| A. | Glucose |
| B. | Maltose |
| C. | Starch |
| D. | Sucrose |
| Answer» E. | |