InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Bolting does not requireA. Short daysB. Long daysC. Internode elongation in rosette plantsD. Cold nights. |
| Answer» Correct Answer - A | |
| 152. |
Cytokinin synthesis is maximum inA. RootsB. LeavesC. Shoot tipD. Fruit. |
| Answer» Correct Answer - A | |
| 153. |
Flash of light in dark inhibits flowering inA. SDPB. LDPC. LSDPD. DNP. |
| Answer» Correct Answer - A | |
| 154. |
Sometimes Potato sprouts during storage due to formation ofA. EthyleneB. GibberellinC. CytokininD. Auxin. |
| Answer» Correct Answer - B | |
| 155. |
Growth hormones connected with bolting areA. CytokininsB. AuxinsC. CoumarinsD. Gibberellins. |
| Answer» Correct Answer - D | |
| 156. |
Some plants have a habit of harbouring ants to save the plants from damage by other animals which is known asA. AnemophilyB. EntomophilyC. MyrmecophileD. Hydrophily |
| Answer» Correct Answer - C | |
| 157. |
Match the columns : `{:(" I"," II"),("a Phototaxis","1. Circular movement"),(," of protoplasm in"),(," response to warm"),(," condition"),("b Thermotaxis","2. Upward movement"),(," of floral organs"),("c Chemotaxis","3. Drooping of leaf"),("d Hyponasty","4. Movement of anther-"),(," ozoids towards"),(," archegonia"),("e Seismonasty","5. Movement of"),(," Chlamydomonas"):}`A. (a) - (5), (b) - (4), (c) - (3), (d) - (2), (e) - (1)B. (a) - (5), (b) - (1), (c) - (4), (d) - (4), (d) - (2), (e) - (3)C. (a) - (4), (b) - (5), (c) - (1), (d) - (2), (e) - (3)D. (a) - (2), (b) - (3), (c) - (4), (d) - (5), (e) - (1) |
| Answer» Correct Answer - B | |
| 158. |
Stomata which remain closed during night and open only during the day for a few hours are ofA. Barley or cereal typeB. Alfalfa typeC. Lucerne typeD. Potato type. |
| Answer» Correct Answer - A | |
| 159. |
Stomata tend to close during hot period and open during cooler hours inA. Potato typeB. Barley typeC. Cereal typeD. Lucerne type. |
| Answer» Correct Answer - B | |
| 160. |
Movement of plant part in response to touch isA. SeismonastyB. ThigmonastyC. NutationD. None of tha above. |
| Answer» Correct Answer - B | |
| 161. |
Leaf of Mimosa droops down on touching because ofA. Water loss from leaflet basesB. Changes in water concentrationC. Loss of water from cells to intercellular spaces in pulvinus and pulvinulesD. All the above. |
| Answer» Correct Answer - C | |
| 162. |
Some flowers (e.g., Oxalis) open in the morning and close during evening because ofA. PhotonastyB. PhototropismC. PhototaxisD. Nyctinasty. |
| Answer» Correct Answer - A | |
| 163. |
Time required for cobalt chloride paper to turn pink when planed just above water surface is calledA. Evaporation timeB. Water test timeC. Cobalt chloride test timeD. Leaf test time. |
| Answer» Correct Answer - B | |
| 164. |
Development of shoot and root is determined byA. Cytokinin and auxin ratioB. EnzymesC. TemperatureD. Plant nutrients. |
| Answer» Correct Answer - A | |
| 165. |
Through their effect on plant growth regiulators, what do the temperature and light control in the plantsA. Stomatal closureB. Apical dominanceC. FloweringD. Fruit development. |
| Answer» Correct Answer - C | |
| 166. |
2, 4-D isA. WeedicideB. InsecticideC. RodenticideD. Nematicide. |
| Answer» Correct Answer - A | |
| 167. |
Which one is not correctly matched ?A. Cytokinin-cell divisionB. IAA-cell wall elongationC. Abscisic acid-stomatal closureD. Gibberellic acid-Leaf fall. |
| Answer» Correct Answer - D | |
| 168. |
Thigmonastic movement is found inA. AlbizziaB. OxalisC. DroseraD. Nepenthes. |
| Answer» Correct Answer - C | |
| 169. |
Phytochrome absorbs visible light maximum in red region atA. 600 nmB. 650 nmC. 660 nmD. 730 nm. |
| Answer» Correct Answer - C | |
| 170. |
Flowerig is influenced byA. Soil water contentB. Soil acidityC. PhotoperiodD. Content of green pigment. |
| Answer» Correct Answer - C | |
| 171. |
Vernalisation isA. Growth curve related to lightB. Effect of photoperiods on plant growthC. Speeding up ability to flower by low temperature treatmentD. Diurnal photoperiodicity. |
| Answer» Correct Answer - C | |
| 172. |
The phyohormone which induces triple respone isA. IAAB. ABAC. `GA_(3)`D. `C_(2)H_(4)`. |
| Answer» Correct Answer - D | |
| 173. |
Closure of lid in Pitcher Plant is aA. Tropic movementB. Turgor movementC. Paratonic movementD. Autonomic movement. |
| Answer» Correct Answer - C | |
| 174. |
Osmotic theory of acitve water absorption was givenA. KellerB. Bennet-Clark et alC. AlkinsD. Karmer. |
| Answer» Correct Answer - C | |
| 175. |
Plant movements unrelated to external stimulus areA. AutonomicB. ParatonicC. MechanicalD. Hygroscopic |
| Answer» Correct Answer - A | |
| 176. |
Sleep movement Papaya/Balsam isA. Autonomic movementB. Tropic movementC. Movement of locomotionD. Growth movement. |
| Answer» Correct Answer - D | |
| 177. |
Opening of flowers involvesA. EpinastyB. HyponastyC. NutationD. Phototaxis. |
| Answer» Correct Answer - A | |
| 178. |
Study of phototropic lead to the discovery ofA. CytokininB. EthyleneC. GibberellinD. Auxin. |
| Answer» Correct Answer - D | |
| 179. |
Irritability/Reactivity/Sensitivity of a plant isA. Response to stimulus in soilB. Response to a change in environmentC. Movement caused by an external forceD. Ability to move. |
| Answer» Correct Answer - B | |
| 180. |
The area of photoperception isA. Region of elongationB. TipC. Young leavesD. Axillary buds. |
| Answer» Correct Answer - B | |
| 181. |
The minimum time interval required between application of stimulus and production of response isA. Presentation timeB. Relaxation timeC. Conversion timeD. Reaction time. |
| Answer» Correct Answer - D | |
| 182. |
The minimum time for which the stimulus must be applied in order to obtaind a response isA. Conversion timeB. Conduction timeC. Presentation timeD. Reaction time. |
| Answer» Correct Answer - C | |
| 183. |
The site which receives the phototropic stimulus isA. Shoot apex (tip)B. Root apex (tip)C. Meristematic regionsD. Leaves. |
| Answer» Correct Answer - A | |
| 184. |
Phototropic curvature is result of uneven distribution ofA. AuxinB. GibberellinC. StarchD. Phytochrome. |
| Answer» Correct Answer - A | |
| 185. |
In shade plants the ratio of chl `a : "chl b"` isA. `4.5:1`B. `1.4:1`C. `0.7:1`D. `5.5:1` |
| Answer» Correct Answer - B | |
| 186. |
The percentage of blue and red wavelengths of light absorbed by chlorophyll a isA. `40%:4%`B. `45%:25%`C. `48%:20%`D. `40%:30%` |
| Answer» Correct Answer - D | |
| 187. |
Seed dormancy is caused byA. ABAB. GAC. ThioureaD. Cytokinin. |
| Answer» Correct Answer - A | |
| 188. |
In transpiration, cavitation isA. Rise of water against gravityB. Evaporation of water in internal spacesC. Dissolution of air in waterD. Appearance of air bubbles in water. |
| Answer» Correct Answer - D | |
| 189. |
Night recovery is caused byA. Condensation of water vapoursB. Local rainC. Capillary movementD. Both B and C. |
| Answer» Correct Answer - A | |
| 190. |
Wilting of sun plants after rain is calledA. Incipient wiltingB. Permanent wiltingC. FloppingD. The statement is incorrect. |
| Answer» Correct Answer - C | |
| 191. |
Wetting of driel soil surface automatically during night without rain isA. Night recoveryB. Dew wettingC. Mist formationD. Ground frost. |
| Answer» Correct Answer - A | |
| 192. |
Cytokinins are mostly produced inA. Shoot apexB. Root apexC. Young leavesD. Lateral buds. |
| Answer» Correct Answer - B | |
| 193. |
CytokininsA. Induce cell division and inhibit ageingB. Maintain dormancyC. Induce abscissionD. Inhibit cell division. |
| Answer» Correct Answer - A | |
| 194. |
Removal of apical bud makes the plantA. BushyB. Grow rapidlyC. Grow slowlyD. Dormant. |
| Answer» Correct Answer - A | |
| 195. |
Gibberellins bring aboutA. Yellowing of leavesB. Promotion of rootingC. Elongation of genetically dwarf plantsD. Dwarfing of genetically tall plants. |
| Answer» Correct Answer - C | |
| 196. |
Food products are kept in cold storage or refrigerator in order toA. Make them tastyB. Use in off-seasonC. Maintenance of freshness, longevity and taste due to low respirationD. Keep them cool. |
| Answer» Correct Answer - C | |
| 197. |
Growth plotted against time gives aA. Parabolic curveB. Sigmoid curveC. Upright lineD. Horizontal line. |
| Answer» Correct Answer - B | |
| 198. |
Food material can be preserved atA. Low temperatureB. High temperatureC. Osmotic pressureD. All the above. |
| Answer» Correct Answer - A | |
| 199. |
Which one prevents photo-oxidation and pigment destruction? A. PhytochromeB. PhytohormoneC. PhycocyaninD. Phyco-erythrin. |
| Answer» Correct Answer - A | |
| 200. |
Physiologically active form of phytochrome isA. `P_(730)//P_("fr")`B. `P_(660)//P_(x)`C. `P_(700)`D. `P_(680)`. |
| Answer» Correct Answer - A | |