3rd Class Science Parts of Plants Question Bank

done Plant Life Total Questions - 45

• question_answer1)
  In the above diagram, the arrow marks represent:
  A)
   preparation of food by plants done clear
  B)
   release of carbon dioxide done clear
  C)
   absorption and transportation of water and minerals   done clear
  D)
   all the above done clear
  View Solution play_arrow

• question_answer2)
  Plants get carbon dioxide from the;
  A)
  soil                        done clear
  B)
  sand done clear
  C)
  leaves                  done clear
  D)
  air   done clear
  View Solution play_arrow

• question_answer3)
  The main purpose of plant's flowers is:
  A)
  provide support              done clear
  B)
  provide water done clear
  C)
  produce seeds   done clear
  D)
  produce food done clear
  View Solution play_arrow

• question_answer4)
  The leaves of plants are green. The reason is:
  A)
   they are born from green-coloured seeds done clear
  B)
   photosynthesis occurs in the leaves done clear
  C)
   the presence of a green pigment called chlorophyll   done clear
  D)
   due to the presence of network of veins done clear
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• question_answer5)
  After studying photosynthesis, Neelima drove the illustration of a plant shown below. Arrow - 1 represents:
  A)
   release of water and minerals by the plant into soil done clear
  B)
   release of carbon dioxide in to the soil done clear
  C)
   absorption of water and minerals by the roots from the soil   done clear
  D)
   release of oxygen into the atmosphere done clear
  View Solution play_arrow

• question_answer6)
  After studying photosynthesis, Neelima drove the illustration of a plant shown below. Absorption of carbon dioxide by the plant from the atmosphere is represented by the arrow.
  A)
  1            done clear
  B)
  2 done clear
  C)
  3              done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer7)
  After studying photosynthesis, Neelima drove the illustration of a plant shown below. Release of ____ gas is represented by arrow 2.
  A)
  oxygen                  done clear
  B)
  carbon dioxide done clear
  C)
  water                   done clear
  D)
  minerals done clear
  View Solution play_arrow

• question_answer8)
  After studying photosynthesis, Neelima drove the illustration of a plant shown below. Leaves are green due to the presence of a green pigment called chlorophyll. The main function of chlorophyll is:
  A)
   to absorb carbon dioxide from the atmosphere done clear
  B)
   to absorb water and minerals from the soil done clear
  C)
   to give greenish color to the leaves done clear
  D)
   to perform photosynthesis in the presence of sunlight   done clear
  View Solution play_arrow

• question_answer9)
  The mushroom shown above gets its food:
  A)
   from dead and decaying plants   done clear
  B)
   from photosynthesis done clear
  C)
   by eating small insects which come near it done clear
  D)
   from the water we pour near it done clear
  View Solution play_arrow

• question_answer10)
  Which of the following is NOT needed for photosynthesis?
  A)
  Iodine solution   done clear
  B)
  Carbon dioxide done clear
  C)
  Chlorophyll   done clear
  D)
  Water done clear
  View Solution play_arrow

• question_answer11)
  Which of the following are called food factories of the plant?
  A)
  Leaves                   done clear
  B)
  Stem done clear
  C)
  Roots                   done clear
  D)
  Flowers done clear
  View Solution play_arrow

• question_answer12)
  Plants store extra food in the form of:
  A)
  oxygen                done clear
  B)
  carbon dioxide done clear
  C)
  chlorophyll         done clear
  D)
  starch   done clear
  View Solution play_arrow

• question_answer13)
  Which of the following is used to observe the cells of a leaf?
  A)
           done clear
  B)
           done clear
  C)
             done clear
  D)
             done clear
  View Solution play_arrow

• question_answer14)
  When you are eating sugarcane, you are actually eating the:
  A)
   fruits of sugarcane         done clear
  B)
   roots of sugarcane done clear
  C)
   stem of sugarcane            done clear
  D)
   grains of sugarcane done clear
  View Solution play_arrow

• question_answer15)
  At which of the following time may a plant be preparing food?
  A)
  6 a.m.                                   done clear
  B)
  10 a.m.   done clear
  C)
  10 p.m.                done clear
  D)
  midnight done clear
  View Solution play_arrow

• question_answer16)
  Which of the following is a seed containing stored food?
  A)
                                done clear
  B)
      done clear
  C)
            done clear
  D)
           done clear
  View Solution play_arrow

• question_answer17)
  The tiny pores present on the leaves of plants are called:
  A)
  stomata                done clear
  B)
  cells done clear
  C)
  chlorophyll         done clear
  D)
  grains done clear
  View Solution play_arrow

• question_answer18)
  Veins:
  A)
   absorb water and minerals from the soil done clear
  B)
   absorb carbon dioxide from the atmosphere done clear
  C)
   transport water, food and minerals in a leaf   done clear
  D)
   release oxygen and carbon dioxide into the atmosphere done clear
  View Solution play_arrow

• question_answer19)
  Many plants wilt in the summer time because they do not have enough:
  A)
   flowers                                done clear
  B)
   water   done clear
  C)
   heat                      done clear
  D)
  leaves done clear
  View Solution play_arrow

• question_answer20)
  The root system in the diagram shown is:  
  A)
  fibrous roots     done clear
  B)
  tap roots   done clear
  C)
  storage roots done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer21)
  Which of the following parts of the plant lies under the ground?
  A)
   Leaves                 done clear
  B)
  Stem done clear
  C)
   Flowers                               done clear
  D)
   Roots   done clear
  View Solution play_arrow

• question_answer22)
  Which of the following plants have fibrous roots?
  A)
      done clear
  B)
           done clear
  C)
          done clear
  D)
           done clear
  View Solution play_arrow

• question_answer23)
  In fibrous roots:
  A)
   small side roots grow from a main root done clear
  B)
   number of roots grow from the end of stem   done clear
  C)
   parallel roots grow from the stem done clear
  D)
   branches of the plant grow roots done clear
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• question_answer24)
  Which of the following provides water and mineral salts to the plant?
  A)
  Stem                                    done clear
  B)
  Flowers done clear
  C)
  Fruits                    done clear
  D)
  Roots   done clear
  View Solution play_arrow

• question_answer25)
  Which of the following part of a plant prepares food?
  A)
     done clear
  B)
      done clear
  C)
       done clear
  D)
           done clear
  View Solution play_arrow

• question_answer26)
  In carrot, what part of the plant stores food?
  A)
   Leaves                                 done clear
  B)
   Stem done clear
  C)
   Fruit                      done clear
  D)
  Root   done clear
  View Solution play_arrow

• question_answer27)
  Which part of the plant carries water and minerals from roots to other parts of the plant?
  A)
   Roots                                   done clear
  B)
   Stem   done clear
  C)
   Flowers                               done clear
  D)
   Buds done clear
  View Solution play_arrow

• question_answer28)
  Which part of the plant carries food prepared in the leaves to the other parts of the plant?
  A)
  Roots                   done clear
  B)
  Leaves done clear
  C)
  Stem      done clear
  D)
  Flowers done clear
  View Solution play_arrow

• question_answer29)
  Which of the following grows into seeds?
  A)
  Roots                   done clear
  B)
  Leaves done clear
  C)
  Stem                    done clear
  D)
  Flowers   done clear
  View Solution play_arrow

• question_answer30)
  The flat, broad part of a leaf is called:
  A)
   leaflet                                  done clear
  B)
   leaf blade   done clear
  C)
   chlorophyll    done clear
  D)
  vein done clear
  View Solution play_arrow

• question_answer31)
  Which of these carry water into a leaf?
  A)
   Leaf blade          done clear
  B)
   Veins   done clear
  C)
   Chlorophyll   done clear
  D)
  Roots done clear
  View Solution play_arrow

• question_answer32)
  Photosynthesis is:
  A)
   transporting water and minerals done clear
  B)
   carrying the prepared food done clear
  C)
   preparation of food in leaves   done clear
  D)
   growing of flowers into seeds done clear
  View Solution play_arrow

• question_answer33)
  Which of the following have one seed in their fruits?
  A)
   Tomato                               done clear
  B)
   Apple done clear
  C)
   Banana                done clear
  D)
  Mango   done clear
  View Solution play_arrow

• question_answer34)
  Which of the following have many seeds in their fruits?
  A)
   Tomato done clear
  B)
   Apple done clear
  C)
   Both tomato and apple   done clear
  D)
   Neither tomato nor apple done clear
  View Solution play_arrow

• question_answer35)
  Which of the following has no seeds?
  A)
  Tomato               done clear
  B)
  Apple done clear
  C)
  Pear                      done clear
  D)
  Banana   done clear
  View Solution play_arrow

• question_answer36)
  Which of the following are the basic needs of plants?

  P - Temperature

  Q - Air

  R - Water

  S - Sunlight

   
  A)
  P and Q only  done clear
  B)
  P and R only done clear
  C)
  P, Q and R only done clear
  D)
  Q, R and S only   done clear
  View Solution play_arrow

• question_answer37)
  The figure given below shows an experiment, where a leaf is covered with a plastic bag. After an hour, it was observed that droplets of water were formed inside the bag. These droplets come out from which of the following parts of the leaf?
  A)
  Leaf blade          done clear
  B)
  Leaf vein done clear
  C)
  Stomata                done clear
  D)
  Leaf stalk done clear
  View Solution play_arrow

• question_answer38)
  Name the green colouring substance that is present in leaves?
  A)
  Carotene            done clear
  B)
  Salts done clear
  C)
  Chlorophyll     done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer39)
  Which of the following should come in the empty box given below?
  A)
  Flowers               done clear
  B)
  Stem   done clear
  C)
  Fruit                      done clear
  D)
  Bark done clear
  View Solution play_arrow

• question_answer40)
  Which of the following is not matched correctly?
  A)
   Root hair - absorption done clear
  B)
   Flowers - reproduction done clear
  C)
   Stem - grows towards light done clear
  D)
   Chlorophyll - respiration   done clear
  View Solution play_arrow

• question_answer41)
  Huge trees like the mango tree, have what kind of roots?
  A)
   Tap roots   done clear
  B)
   Fibrous roots done clear
  C)
   A mixture of tap and fibrous roots done clear
  D)
   Aerial roots done clear
  View Solution play_arrow

• question_answer42)
  Which of the following gases is NOT released by the leaves of a plant?
  A)
  Carbon dioxide done clear
  B)
  Oxygen done clear
  C)
  Nitrogen        done clear
  D)
  Water vapour done clear
  View Solution play_arrow

• question_answer43)
  The main purpose of flowers is to:
  A)
  transport water done clear
  B)
  produce seeds   done clear
  C)
  produce food  done clear
  D)
  transport food done clear
  View Solution play_arrow

• question_answer44)
  Which of the following stores food for the baby plant?
  A)
  Leaf                      done clear
  B)
  Seed   done clear
  C)
  Stem    done clear
  D)
  Roots done clear
  View Solution play_arrow

• question_answer45)
  Which of these will grow into a new plant?
  A)
   A fallen leaf done clear
  B)
   a fallen flower done clear
  C)
   A fallen seed   done clear
  D)
   A buried flower petal done clear
  View Solution play_arrow