Banking Biology Plant Physiology Question Bank

done Plant Physiology Total Questions - 40

• question_answer1)
  The physical process involved in the release of molecular oxygen from leaves is
  A)
  diffusion                        done clear
  B)
  transpiration done clear
  C)
  osmosis              done clear
  D)
         capillarity done clear
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• question_answer2)
  If a cell swells, after being placed in solution, the solution is
  A)
   neutral                          done clear
  B)
   hypotonic   done clear
  C)
   hypertonic           done clear
  D)
         isotonic done clear
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• question_answer3)
  Chlorophyll is present
  A)
   in the grana of chloroplasts   done clear
  B)
   on the surface of chloroplasts done clear
  C)
   dispersed through-out the chloroplasts done clear
  D)
   in the stroma of chloroplasts done clear
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• question_answer4)
  Translocation of carbohydrate nutrients usually occurs in the form of
  A)
   glucose                         done clear
  B)
   maltose done clear
  C)
   starch               done clear
  D)
          sucrose   done clear
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• question_answer5)
  Hydroponics is a technique in which plants are grown in
  A)
   green house done clear
  B)
   water saturated sand done clear
  C)
   balanced nutrient solution   done clear
  D)
   purified distilled water done clear
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• question_answer6)
  Respiration in plants
  A)
   occurs only during day done clear
  B)
   results in the formation of vitamins done clear
  C)
   is characteristic of all living cells   done clear
  D)
   often requires \[C{{O}_{2}}\] done clear
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• question_answer7)
  Chief function of leaves are
  A)
   transpiration and photosynthesis   done clear
  B)
   respiration and photosynthesis done clear
  C)
   respiration and digestion done clear
  D)
   respiration and transpiration done clear
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• question_answer8)
  Which element is required in comparatively least quantity for the growth of plant?
  A)
   Zn                     done clear
  B)
   N done clear
  C)
   P                    done clear
  D)
          Ca done clear
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• question_answer9)
  End product of glycolysis is
  A)
   acetyl CoA                    done clear
  B)
   pyruvic acid   done clear
  C)
   glucose-1 -phosphate done clear
  D)
   fructose-1-phosphate done clear
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• question_answer10)
  The ultimate gain of light reaction is
  A)
   ATP and \[\text{NADP}{{\text{H}}_{\text{2}}}\]             done clear
  B)
   \[\text{NADP}{{\text{H}}_{\text{2}}}\] done clear
  C)
   only ATP          done clear
  D)
          only O," done clear
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• question_answer11)
  End product of fermentation of sugars is
  A)
   \[{{H}_{2}}O\] and \[C{{O}_{2}}\]                  done clear
  B)
   \[C{{O}_{2}}\] done clear
  C)
   alcohol and \[C{{O}_{2}}\],   done clear
  D)
         alcohol done clear
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• question_answer12)
  Stomata open and close due to
  A)
   circadian rhythm done clear
  B)
   genetic clock done clear
  C)
   pressure of gases inside the leaves done clear
  D)
   turgor pressure of guard cells   done clear
  View Solution play_arrow

• question_answer13)
  Which of the following plant is found to have minimum transpiration?
  A)
   Cactus                            done clear
  B)
   Hydrilla done clear
  C)
   Mango             done clear
  D)
          Guava done clear
  View Solution play_arrow

• question_answer14)
  Photo synthetically active radiation is represented by the range of wavelength of
  A)
   340-450 nm                  done clear
  B)
   400-700 nm   done clear
  C)
   500-600 nm        done clear
  D)
          400-950 nm done clear
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• question_answer15)
  Which of the following is not performed by root hairs?
  A)
   Water uptake                 done clear
  B)
   Oxygen uptake done clear
  C)
   Mineral uptake     done clear
  D)
         \[C{{O}_{2}}\] uptake   done clear
  View Solution play_arrow

• question_answer16)
  In rainy season, door gets swelled due to
  A)
   imbibition                       done clear
  B)
   diffusion done clear
  C)
   transpiration        done clear
  D)
          respiration done clear
  View Solution play_arrow

• question_answer17)
  The force responsible for upward conduction of water against gravity comes from
  A)
   transpiration                    done clear
  B)
   translocation done clear
  C)
   respiration            done clear
  D)
          photosynthesis done clear
  View Solution play_arrow

• question_answer18)
  Double fertilization means
  A)
   fusion of male gametes and ovum done clear
  B)
   fusion of two polar bodies done clear
  C)
   a male gamete fused with egg and second male gamete fused with secondary nucleus   done clear
  D)
   all the above done clear
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• question_answer19)
  Which of the following is not caused by deficiency of mineral nutrition?
  A)
   Necrosis                        done clear
  B)
   Chlorosis done clear
  C)
   Etiolation               done clear
  D)
          Shortening of internodes done clear
  View Solution play_arrow

• question_answer20)
  Generally plants absorbed \[{{N}_{2}}\] in the form of
  A)
   \[NO_{2}^{-}\]                        done clear
  B)
   \[NO_{3}^{-}\]   done clear
  C)
   \[N\equiv N\]               done clear
  D)
          \[HN{{O}_{2}}\], done clear
  View Solution play_arrow

• question_answer21)
  Which of the following element is a constituent of protein?
  A)
   Sulphur                          done clear
  B)
   Potassium done clear
  C)
   Lead                done clear
  D)
          Phosphorus done clear
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• question_answer22)
  Haploid, diploid and triploid conditions respectively can be traced in
  A)
   egg, nucellus, endosperm   done clear
  B)
   antipodal, egg, endosperm done clear
  C)
   endosperm, nucellus, synergids done clear
  D)
   antipodal, synergids and integuments done clear
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• question_answer23)
  \[{{N}_{2}}+8{{e}^{-}}+8{{H}^{+}}+16ATP\to \]\[2N{{H}_{4}}+{{H}_{2}}+16ADP+16Pi\] The above equation refers to
  A)
   ammonification             done clear
  B)
   nitrification done clear
  C)
   nitrogen fixation     done clear
  D)
          denitrification done clear
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• question_answer24)
   In PS-I the reaction centre Chl a has absorption maxima at _________, while in PS-II the reaction centre Chl a has absorption maxima at ______
  A)
   \[{{P}_{680}},{{P}_{700}}\]               done clear
  B)
   \[{{P}_{700}},{{P}_{680}}\]   done clear
  C)
   \[{{P}_{800}},{{P}_{600}}\]              done clear
  D)
          \[{{P}_{700}},{{P}_{900}}\] done clear
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• question_answer25)
  Ethylene gas is used for
  A)
   growth of plants. done clear
  B)
   delaying fruit's abscission. done clear
  C)
   ripening of fruits.   done clear
  D)
   stopping the leaf abscission. done clear
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• question_answer26)
  Which one is the correct summary equation of photosynthesis?
  A)
   \[{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}\to 6C{{O}_{2}}+6{{H}_{2}}O+energy\] done clear
  B)
   \[{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{O}_{2}}+6{{H}_{2}}O\to 6C{{O}_{2}}+12{{H}_{2}}O+energy\] done clear
  C)
  \[6C{{O}_{2}}+6{{H}_{2}}O\xrightarrow[Chlorophyll]{Light}6{{H}_{2}}O+{{C}_{6}}{{H}_{12}}{{O}_{6}}\] done clear
  D)
  \[6C{{O}_{2}}+12{{H}_{2}}O\xrightarrow[Chlorophyll]{Light}6O+{{C}_{6}}{{H}_{12}}{{O}_{6}}+6{{H}_{2}}O\] done clear
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• question_answer27)
  Which one of the following is primarily concerned with cell division?
  A)
   \[G{{A}_{3}}\]                        done clear
  B)
   \[IAA\] done clear
  C)
   Cytokinin              done clear
  D)
          Ethylene done clear
  View Solution play_arrow

• question_answer28)
  Growth is primarily affected by two climatic factors which are-
  A)
   Light and temperature   done clear
  B)
   Temperature and relative humidity done clear
  C)
   Light and wind done clear
  D)
   Rainfall and temperature done clear
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• question_answer29)
  The hormone reducing transpiration rate by inducing stomatal closure is
  A)
   ABA                              done clear
  B)
   ethylene done clear
  C)
   cytokinin             done clear
  D)
          auxin done clear
  View Solution play_arrow

• question_answer30)
  Which part of the plant do not perform photosynthesis?
  A)
   Cactus stem                  done clear
  B)
   Guard cell of stomata done clear
  C)
   Mesophyll cells of leaf done clear
  D)
   Leaf epidermis   done clear
  View Solution play_arrow

• question_answer31)
  Effect of low temperature which shortens vegetative period and hasten flowering is
  A)
   photoperiodism              done clear
  B)
   transpiration done clear
  C)
   vernalization          done clear
  D)
          photolysis done clear
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• question_answer32)
  Which of the following elements is not required by plants for their normal healthy growth?
  A)
   Calcium                        done clear
  B)
   Magnesium done clear
  C)
   Lead                  done clear
  D)
          Iron done clear
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• question_answer33)
  The hormone responsible for phototropism is
  A)
   Ethylene                       done clear
  B)
   Abscisic acid done clear
  C)
   Auxin                  done clear
  D)
          Gibberellin acid done clear
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• question_answer34)
  In which part of a flower do both meiosis and fertilization occur?
  A)
   Ovule                             done clear
  B)
   Stigma done clear
  C)
   Anther               done clear
  D)
          Petal done clear
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• question_answer35)
  Bidirectional translocation of minerals takes place in
  A)
   Xylem                          done clear
  B)
   Phloem   done clear
  C)
   Parenchyma        done clear
  D)
          Cambium done clear
  View Solution play_arrow

• question_answer36)
  Soil can easily become deficient in_________ because these ions are negatively charged and do not stick to negatively charged clay particles.
  A)
   Nitrate                            done clear
  B)
   Calcium done clear
  C)
   Ammonium         done clear
  D)
          Magnesium done clear
  View Solution play_arrow

• question_answer37)
  In an anaerobic condition, yeast cells breakdown glucose to
  A)
   \[C{{O}_{2}}+{{H}_{2}}O\]               done clear
  B)
   \[{{C}_{2}}{{H}_{5}}OH\]and \[C{{O}_{2}}\]   done clear
  C)
   \[C{{O}_{2}}\] + Lactic acid    done clear
  D)
   \[C{{O}_{2}}\]+ Pyruvic acid done clear
  View Solution play_arrow

• question_answer38)
  Two pigment system theory of photosynthesis was proposed by or Concept of evidence for existence of two photosystems in photosynthesis was given by
  A)
   Hill                 done clear
  B)
   Blackman done clear
  C)
   Emerson              done clear
  D)
          Arnon done clear
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• question_answer39)
  Which mineral nutrients are called critical element for crops?
  A)
   N, P, K                           done clear
  B)
   C, H, O done clear
  C)
   N, S, Mg              done clear
  D)
          K, Ca, Fe done clear
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• question_answer40)
  Which of the following would not have an effect on flowering of a particular plant species?
  A)
   Plant age                      done clear
  B)
   Nutritional status done clear
  C)
   Temperature                  done clear
  D)
   Prevailing wind   done clear
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