4th Class Science Plants and Animals Question Bank

done Plant Life - II (How Plants Make Food) Total Questions - 50

• question_answer1)
  During which of the following times of the day does the process shown here takes place in Plants?
  A)
   6: 00 a.m only done clear
  B)
   2: 00 p.m only done clear
  C)
   11: 00 a.m only done clear
  D)
   All the time done clear
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• question_answer2)
  The four boxes P, Q, R and S given below contain the edible part of the plants.

  P	Q	R	S
  Rice Pulses	Mango Pumpkin	Carrot  Turnip	Potato Sugarcane

  A ginger can be placed in which of the four boxes given here?
  A)
   P                     done clear
  B)
        Q done clear
  C)
   R                     done clear
  D)
        S done clear
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• question_answer3)
  Which of the following parts of a cactus plant performs photosynthesis?
  A)
   Spines              done clear
  B)
        Stem done clear
  C)
   Roots               done clear
  D)
        Leaves done clear
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• question_answer4)
  In which of the following processes, the release of oxygen by plants takes place?
  A)
   Respiration done clear
  B)
   Digestion done clear
  C)
   Reproduction done clear
  D)
   Photosynthesis done clear
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• question_answer5)
  Which of the following is a seed containing stored food?
  A)
   Potato              done clear
  B)
        Mango done clear
  C)
   Maize               done clear
  D)
        Grapes done clear
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• question_answer6)
  The leaves of plants are green because
  A)
   they are formed from green coloured seeds.                 done clear
  B)
   they absorb green liquid. done clear
  C)
   of the presence of a green pigment called chlorophyll. done clear
  D)
   of the presence of the network of veins. done clear
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• question_answer7)
  Harish wants to test the presence of starch in a leaf. Given below are the in striations to  conduct  the experiment. Which of the following step is NOT necessary?
  A)
   Boil the leaf first in water and then in alcohol. done clear
  B)
   Wash the bleached leaf. done clear
  C)
   Heat the leaf on a hot flame. done clear
  D)
   Add a few drops of iodine solution to the bleached leave. done clear
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• question_answer8)
  Abhi covered a leaf of a potted plant and kept the plant under sunlight for a few days and then tested it with iodine solution for the presence of starch in it. The colour of the covered leaf did not turn blue-black. What does this indicate?                  
  A)
   The black cover absorbed all the starch present in the leaf. done clear
  B)
   Iodine solution does not work with black covers. done clear
  C)
   Starch is evaporated from the leaves.                         done clear
  D)
   Starch is prepared only in the presence of sun light. done clear
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• question_answer9)
  When iodine is added to a starch solution, the color is changed to
  A)
   blue black.        done clear
  B)
        yellow. done clear
  C)
   green.               done clear
  D)
        reddish brown. done clear
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• question_answer10)
  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 breathe. done clear
  D)
   to perform photosynthesis in the presence of sunlight. done clear
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• question_answer11)
  From the statements given below, Neelima concluded that the dark red coloured croton plants in her garden cannot prepare food on its own.

  Statement A: Plants that appear green due to chlorophyll pigment are able to a synthesize their food.

  Statement B: Photosynthesis cannot take place in plants that appear red.

  Which of the following statements prove that her conclusion is wrong?
  A)
   Croton plants are green but do not contain chlorophyll. done clear
  B)
   Croton plants are dark red in colour and do not contain chlorophyll. done clear
  C)
   Croton plants have chlorophyll but it is hidden by the dark red coloured pigments. done clear
  D)
   Croton plants do not have chlorophyll but they can prepare their own food. done clear
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• question_answer12)
  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
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• question_answer13)
  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
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• question_answer14)
  In carrots, food is stored in
  A)
   leaves. done clear
  B)
                    stem. done clear
  C)
   roots.               done clear
  D)
        flowers. done clear
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• question_answer15)
  When you eat sugarcane, you are actually eating the
  A)
   fruit of the sugarcane. done clear
  B)
   root of the sugarcane. done clear
  C)
   stem of the sugarcane. done clear
  D)
   grains of the sugarcane. done clear
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• question_answer16)
  A plant was kept in a dark room for a week. When its leaves were tested with iodine solution, it did not show the presence of starch. From this experiment we can conclude that _________ is required for photosynthesis.
  A)
   sunlight             done clear
  B)
        iodine done clear
  C)
   starch               done clear
  D)
        darkness done clear
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• question_answer17)
  Which of the following is a root containing stored food?
  A)
            done clear
  B)
         done clear
  C)
               done clear
  D)
         done clear
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• question_answer18)
  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
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• question_answer19)
  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
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• question_answer20)
  Plants make their own food and thus do not depend on others. Therefore, they are called:
  A)
   self made          done clear
  B)
        parasites done clear
  C)
   autotrophs        done clear
  D)
        heterotrophs done clear
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• question_answer21)
  Study the figure given below and answer the questions.                                     Which of these labelled parts of the plant anchor the plant to the ground?
  A)
   I                      done clear
  B)
        II done clear
  C)
   III                    done clear
  D)
        IV done clear
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• question_answer22)
  Study the figure given below and answer the questions.                                     Which of these parts of the plant is also referred to as a sugar-making factory?
  A)
   I                                  done clear
  B)
   II done clear
  C)
   III                    done clear
  D)
        IV done clear
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• question_answer23)
  I anchor the plant to the ground. I absorb water and mineral salts from the soil. Who am I?
  A)
   Root                 done clear
  B)
        Stem done clear
  C)
   Leaf                 done clear
  D)
        Flower done clear
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• question_answer24)
  Look carefully at the diagram of the plant given below. What do the arrows indicate?            

  (i) Water

  (ii) Mineral salts

  (iii) Oxygen

  (iv) Sugar

  A)
   Only (i) and (ii) done clear
  B)
        Only (iii) and (iv) done clear
  C)
   Only (i), (ii) and (iii) done clear
  D)
   (i), (ii), (iii) and (iv) done clear
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• question_answer25)
  Which of the following plants will be able to carry out photosynthesis?
  A)
    done clear
  B)
    done clear
  C)
    done clear
  D)
    done clear
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• question_answer26)
  Read the description below.

  X supports the plant, it helps in the transportation of food, water and mineral salts,

  Which of these parts of the plant matches the above description about X?
  A)
   Root                             done clear
  B)
   Stem done clear
  C)
   Branch             done clear
  D)
        Leaf done clear
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• question_answer27)
  Which of the following is classified correctly?
  A)

  Storage root	Root not used for storage
  Carrot	Grass

  done clear
  B)

  Storage root	Root not used for storage
  Potato	Turnip

  done clear
  C)

  Storage root	Root not used for storage
  Potato	Radish

  done clear
  D)

  Storage root	Root not used for storage
  Maize	Cabbage

  done clear
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• question_answer28)
  The diagram given below shows a plant. The arrows in the diagram show the path taken by _____.            
  A)
   Food      done clear
  B)
                    Sunlight done clear
  C)
   Water               done clear
  D)
        Carbon dioxide done clear
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• question_answer29)
  The diagram below shows the cross- section of a papaya fruit. Under suitable conditions, which part of the papaya (P, Q, R or S) will grow into a new plant?
  A)
   P                                 done clear
  B)
   Q done clear
  C)
   R                     done clear
  D)
        S done clear
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• question_answer30)
  What could the arrow P possibly represent in the diagram given below?
  A)
   Carbon dioxide done clear
  B)
   Oxygen done clear
  C)
   Water                           done clear
  D)
   Energy done clear
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• question_answer31)
  During photosynthesis, plants absorb ________ gas and release _______gas.
  A)
   carbon dioxide, oxygen done clear
  B)
   oxygen, carbon dioxide done clear
  C)
   oxygen, nitrogen done clear
  D)
   nitrogen, oxygen done clear
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• question_answer32)
  The figure given below shows an experiment. The plant is responding to
  A)
   touch.                          done clear
  B)
   sunlight done clear
  C)
   gravity.             done clear
  D)
        water. done clear
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• question_answer33)
  Which of the following are the basic needs of the figure given below?
  A)
   Food and air only done clear
  B)
   Food and water only done clear
  C)
   Air, water and food only done clear
  D)
   Air, water and sunlight done clear
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• question_answer34)
  The figure given below shows the result of an experiment. The experiment shows that the roots respond to
  A)
   water.                           done clear
  B)
   touch. done clear
  C)
   gravity.             done clear
  D)
        sunlight. done clear
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• question_answer35)
  The experiment given below is performed to show that
  A)
   green plants give out carbon- dioxide during photosynthesis. done clear
  B)
   green leaves absorb chlorophyll. done clear
  C)
   sunlight is not needed to make food. done clear
  D)
   green plants manufacture starch as food. done clear
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• question_answer36)
  Where does most of the water needed for photosynthesis come from?
  A)
   From air through the tiny pores in the leaf. done clear
  B)
   From the soil through the roots of the plant. done clear
  C)
   As a result of respiration within the leaf. done clear
  D)
   From water vapour in the air. done clear
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• question_answer37)
  Chlorophyll is a green pigment found in leaves. It is important to the green plants because it
  A)
   helps the plant in reproduction. done clear
  B)
   traps nitrogen in the air. done clear
  C)
   traps light energy from the sun. done clear
  D)
   absorbs water and mineral salts. done clear
  View Solution play_arrow

• question_answer38)
  Which of the following is used to test the presence of starch?
  A)
   Iodine solution done clear
  B)
   Copper sulphate solution done clear
  C)
   Potassium hydroxide done clear
  D)
   Alcohol done clear
  View Solution play_arrow

• question_answer39)
  Which of the following is the main function of the part labelled 'R' in the figure given below?
  A)
   Provides support done clear
  B)
   Synthesises food done clear
  C)
   Produces seeds done clear
  D)
   Absorbs water done clear
  View Solution play_arrow

• question_answer40)
  Which part of the papaya tree conducts water and food to the plant?
  A)
   P                     done clear
  B)
        Q done clear
  C)
   R                     done clear
  D)
        S done clear
  View Solution play_arrow

• question_answer41)
  Which of the following are produced by plants during the process of photosynthesis?

  (i) Oxygen

  (ii) Carbon dioxide

  (iii) Sugar

  A)
   Only (i) and (ii) done clear
  B)
   Only (i) and (iii) done clear
  C)
   Only (ii) and (iii) done clear
  D)
   (i), (ii) and (iii) done clear
  View Solution play_arrow

• question_answer42)
  The figure given below represents a process that takes place in the presence of sunlight. Which of the following gases is released during this process?                        
  A)
   Hydrogen                      done clear
  B)
   Carbon dioxide done clear
  C)
   Oxygen            done clear
  D)
        Nitrogen done clear
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• question_answer43)
  Which of these is of great importance in nature as it helps plants to make their own food in the presence of sunlight?
  A)
   Oxygen done clear
  B)
   Chlorophyll done clear
  C)
   Carbon monoxide done clear
  D)
   Iodine solution done clear
  View Solution play_arrow

• question_answer44)
  Match the following and select the correct answer.

  Column-I		Column-II
  p.	Ginger	i.	Leaf
  q.	Radish	ii.	Seed
  r.	Spinach	iii.	Root
  s.	Rice	iv.	Stem

  A)
   \[p-i,q-iv,\text{ }r-ii,s-iii\] done clear
  B)
   \[p-iv,\text{ }q-iii,\text{ }r-i,\text{ }s-ii\] done clear
  C)
   \[p-i,\text{ }q-ii,\text{ }r-iii,\text{ }s-iv\] done clear
  D)
   \[p-iii,\text{ }q-ii,\text{ }r-iv,\text{ }s-i\] done clear
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• question_answer45)
  Which of the following structures of plant exchanges gases?
  A)
   Buds                            done clear
  B)
   Fruits done clear
  C)
   Leaves             done clear
  D)
        Flowers done clear
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• question_answer46)
  The stem of a cactus plant prepares food for it. The colour of the stem is
  A)
   green.               done clear
  B)
        brown. done clear
  C)
   red.                  done clear
  D)
        yellow. done clear
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• question_answer47)
  In radish, food is stored in
  A)
   leaves.              done clear
  B)
        stems. done clear
  C)
   roots.   done clear
  D)
        flowers. done clear
  View Solution play_arrow

• question_answer48)
  Study the figure given here and identify gases X and Y.
  A)
   X - oxygen, Y - carbon dioxide done clear
  B)
   X - carbon dioxide, Y ? oxygen done clear
  C)
   X - nitrogen, Y ? hydrogen done clear
  D)
   X - hydrogen, Y ? nitrogen done clear
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• question_answer49)
  Which of the following does not belong to the group formed by the others?
  A)
          done clear
  B)
    done clear
  C)
              done clear
  D)
         done clear
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• question_answer50)
  During respiration, plants use ________ gas and release ________ gas.
  A)
   carbon dioxide, oxygen done clear
  B)
   oxygen, carbon dioxide done clear
  C)
   oxygen, nitrogen done clear
  D)
   nitrogen, oxygen done clear
  View Solution play_arrow