4th Class Science Teeth and Digestion Question Bank

done Teeth and Microbes Total Questions - 50

• question_answer1)
  Observe the diagrams given below and answer the question The teeth labelled II represents
  A)
   incisors.                        done clear
  B)
   canines. done clear
  C)
   molars.             done clear
  D)
        premolars. done clear
  View Solution play_arrow

• question_answer2)
  Observe the diagrams given below and answer the question Teeth marked I represent
  A)
   incisors.            done clear
  B)
        canines. done clear
  C)
   molars.             done clear
  D)
        premolars. done clear
  View Solution play_arrow

• question_answer3)
  Observe the diagrams given below and answer the question The teeth used to grind food are marked as
  A)
   I                                  done clear
  B)
   II      done clear
  C)
   III                    done clear
  D)
        iv done clear
  View Solution play_arrow

• question_answer4)
  Observe the diagrams given below and answer the question Teeth marked III are called
  A)
   ripping teeth. done clear
  B)
   cracking teeth.     done clear
  C)
                   tearing teeth. done clear
  D)
   cutting teeth. done clear
  View Solution play_arrow

• question_answer5)
  Match the following types of teeth in Column-I with their uses in Column-II.

  Column - I		Column - II
  p.	Incisors	i.	Grinding
  q.	Canines	ii.	Cracking
  r.	Premolars	iii.	Cutting
  s.	Molars	iv.	Tearing

  A)
   \[p-ii,\text{ }q-ii,\text{ }r-i,\text{ }s-iii\] done clear
  B)
   \[p-ii,q-i,r-iv,s-iii\] done clear
  C)
   \[p-iii,q-ii,r-iv,s-i\] done clear
  D)
   \[p-iii,q-iv,r-ii,s-i\] done clear
  View Solution play_arrow

• question_answer6)
  An adult has ________ teeth.
  A)
   20                    done clear
  B)
        24 done clear
  C)
   28                    done clear
  D)
        32 done clear
  View Solution play_arrow

• question_answer7)
  Fatima is a 14 year old girl. How many teeth is she likely to have?
  A)
   20                    done clear
  B)
        14 done clear
  C)
   28                    done clear
  D)
        32 done clear
  View Solution play_arrow

• question_answer8)
  Which of the following is NOT true regarding the care of teeth?
  A)
   Teeth get damaged by chewing food. done clear
  B)
   We should not eat too many sweets. done clear
  C)
   We should brush our teeth twice a day. done clear
  D)
   We should eat raw fruits and vegetables. done clear
  View Solution play_arrow

• question_answer9)
  Which of the following is the soft material of a tooth?
  A)
   Dentine             done clear
  B)
        Pulp done clear
  C)
   Enamel                         done clear
  D)
   Root done clear
  View Solution play_arrow

• question_answer10)
  Ramu took a glass of milk and poured two teaspoonful of buttermilk in it at night. In the morning he obtained curd. Which of the following has helped in changing milk into curd?
  A)
   Protozoa           done clear
  B)
        Fungi done clear
  C)
   Bacteria            done clear
  D)
        Viruses done clear
  View Solution play_arrow

• question_answer11)
  The outer portion of the tooth above the gum is called
  A)
   the crown.                     done clear
  B)
   the root. done clear
  C)
   the enamel.       done clear
  D)
        the pulp. done clear
  View Solution play_arrow

• question_answer12)
  In a tooth, blood vessels and nerves are present in the
  A)
   crown.              done clear
  B)
        pulp. done clear
  C)
   root.                 done clear
  D)
        enamel. done clear
  View Solution play_arrow

• question_answer13)
  The number of molars in each jaw is
  A)
   four.                 done clear
  B)
        two. done clear
  C)
   one.                 done clear
  D)
        six. done clear
  View Solution play_arrow

• question_answer14)
  Raju buried a dead rat under the soil. When he dug up one year later, he found that it had decayed and decomposed. Which of the following is responsible for the decay?
  A)
   Bacteria                        done clear
  B)
   Virus done clear
  C)
   Sand                done clear
  D)
        Protozoa done clear
  View Solution play_arrow

• question_answer15)
  Which of the following is used to see disease-causing germs?
  A)
      done clear
  B)
    done clear
  C)
                                done clear
  D)
    done clear
  View Solution play_arrow

• question_answer16)
  The harmful, soft sticky layer formed on the tooth is called
  A)
   enamel.                        done clear
  B)
   plaque. done clear
  C)
   dentine.            done clear
  D)
        pulp. done clear
  View Solution play_arrow

• question_answer17)
  Fill in the blank. Sugar + Plaque \[\xrightarrow{{}}\]
  A)
   Starch    done clear
  B)
                    Enamel done clear
  C)
   Acids                done clear
  D)
        Microbes done clear
  View Solution play_arrow

• question_answer18)
  Wisdom teeth appear at the age between
  A)
   12-13 years. done clear
  B)
   2-3 years. done clear
  C)
   13-16 years. done clear
  D)
   20-25 years. done clear
  View Solution play_arrow

• question_answer19)
  The number of wisdom teeth are
  A)
   one.                 done clear
  B)
        two. done clear
  C)
   six.                  done clear
  D)
        four. done clear
  View Solution play_arrow

• question_answer20)
  Small pox is caused by
  A)
   bacteria.           done clear
  B)
        fungi. done clear
  C)
   protozoa.          done clear
  D)
        virus. done clear
  View Solution play_arrow

• question_answer21)
  Which of the following help baking bread and in the making of wine?
  A)
   Bacteria              done clear
  B)
        Viruses done clear
  C)
   Protozoa           done clear
  D)
        Fungi done clear
  View Solution play_arrow

• question_answer22)
  Which of the following is not a microbe?
  A)
   Bacteria            done clear
  B)
        Fungi done clear
  C)
   Plaque              done clear
  D)
        Protozoa      done clear
  View Solution play_arrow

• question_answer23)
  Which of these get damaged by the action of the acid that is produced in the reaction between plaque and sugar?                          
  A)
   Tooth.              done clear
  B)
        Bones.        done clear
  C)
   Mouth.                         done clear
  D)
   Stomach.     done clear
  View Solution play_arrow

• question_answer24)
  Teeth begin to appear at the age of
  A)
   two months.      done clear
  B)
        two years.     done clear
  C)
   six months.                   done clear
  D)
   six years. done clear
  View Solution play_arrow

• question_answer25)
  ____ hold our teeth in place.       
  A)
   Enamel               done clear
  B)
        Gums done clear
  C)
   Dentine             done clear
  D)
        Plaque done clear
  View Solution play_arrow

• question_answer26)
  Which of the following teeth helps to tear food?
  A)
   Incisors                         done clear
  B)
   Premolars done clear
  C)
   Molars              done clear
  D)
        Canines done clear
  View Solution play_arrow

• question_answer27)
  Identify the organism given below.
  A)
   Protozoan         done clear
  B)
        Bacteria done clear
  C)
   Virus                done clear
  D)
        Fungi done clear
  View Solution play_arrow

• question_answer28)
  Observe the structure of a tooth given below. Identify the part labelled 'X' in the given figure.
  A)
   Enamel             done clear
  B)
        Dentine done clear
  C)
   Pulp                 done clear
  D)
        Crown done clear
  View Solution play_arrow

• question_answer29)
  Which of the following is a viral disease?
  A)
   Typhoid            done clear
  B)
        Influenza done clear
  C)
   Tuberculosis      done clear
  D)
        Chlorea done clear
  View Solution play_arrow

• question_answer30)
  Which of the following methods is most suitable to kill tiny microbes or germs and to remove the foul odour of pillows and beddings?
  A)
   Spraying perfume on them done clear
  B)
   Exposing them to sunlight done clear
  C)
   Soaking them in water done clear
  D)
   Burning them done clear
  View Solution play_arrow

• question_answer31)
  Which of the following devices is/are being used by scientists to observe microbes?

  I - Microscope

  II - Bioscope

  III - Telescope

  A)
   Only I              done clear
  B)
   Only II done clear
  C)
   Only III            done clear
  D)
        Only II and III done clear
  View Solution play_arrow

• question_answer32)
  Which of the following vitamins prevent the disease of bleeding gums or scurvy?
  A)
   Vitamin B         done clear
  B)
        Vitamin C done clear
  C)
   Vitamin K         done clear
  D)
        Vitamin D done clear
  View Solution play_arrow

• question_answer33)
  The figure below shows a tooth that is decayed. What causes the decay in a tooth?
  A)
   Eating too many nuts done clear
  B)
   Brushing teeth regularly done clear
  C)
   Not exercising enough done clear
  D)
   Bacteria in the mouth done clear
  View Solution play_arrow

• question_answer34)
  We have different types of teeth canines, incisors, premolars and molars. How do teeth help in digestion?
  A)
   They produce digestive juices. done clear
  B)
   They break down or digest food into simple substances. done clear
  C)
   They protect our digestive organs. done clear
  D)
   They tear, cut, crush or grind food into small pieces. done clear
  View Solution play_arrow

• question_answer35)
  Which of the following is used to know the rate of heart beat in our body?
  A)
                      done clear
  B)
    done clear
  C)
                        done clear
  D)
    done clear
  View Solution play_arrow

• question_answer36)
  Identify the tooth shown in the figure.
  A)
   Incisor    done clear
  B)
                    Canine done clear
  C)
   Molar               done clear
  D)
        Premolar done clear
  View Solution play_arrow

• question_answer37)
  A teacher while taking a class on teeth said that you have four sets of teeth - 8 incisors, 4 canines, 8 premolars and 12 molars. He is talking about
  A)
   Temporary teeth. done clear
  B)
   Permanent teeth. done clear
  C)
   Teeth of a child. done clear
  D)
   both [a] and [c] done clear
  View Solution play_arrow

• question_answer38)
  Observe the picture. Which of these teeth performs the function similar to the given figure?
  A)
   Incisors             done clear
  B)
        Premolars done clear
  C)
   Canines            done clear
  D)
        Molars done clear
  View Solution play_arrow

• question_answer39)
  Which doctor is consulted when we have a toothache?
  A)
   Dentist                          done clear
  B)
   Cardiologist done clear
  C)
   Surgen              done clear
  D)
        Nephrologist done clear
  View Solution play_arrow

• question_answer40)
  Which of the following microbes grows on dead and rotting things?
  A)
   Virus                done clear
  B)
        Protozoa done clear
  C)
   Algae               done clear
  D)
        Fungi done clear
  View Solution play_arrow

• question_answer41)
  The teeth that are used for cracking hard food are _________
  A)
   molars.             done clear
  B)
        premolars. done clear
  C)
   canines.            done clear
  D)
        incisors. done clear
  View Solution play_arrow

• question_answer42)
  In the diagram given below, the teeth marked 'X' are called
  A)
   molars.                         done clear
  B)
   premolars. done clear
  C)
   incisors.            done clear
  D)
        canines. done clear
  View Solution play_arrow

• question_answer43)
  Which kind of teeth is used for cutting food?                           
  A)
   Incisors             done clear
  B)
        Canines done clear
  C)
   Premolars         done clear
  D)
        Molars done clear
  View Solution play_arrow

• question_answer44)
  Which of these, when added, makes bread and cakes fluffy?
  A)
   Bacteria                        done clear
  B)
   Viruses done clear
  C)
   Protozoa           done clear
  D)
        Yeasts done clear
  View Solution play_arrow

• question_answer45)
  The teeth that are well developed in carnivores are
  A)
   incisors.            done clear
  B)
        canines. done clear
  C)
   premolars.         done clear
  D)
        molars. done clear
  View Solution play_arrow

• question_answer46)
  The total number of premolars in our jaws are
  A)
   12.                   done clear
  B)
        8. done clear
  C)
   6.                    done clear
  D)
        3. done clear
  View Solution play_arrow

• question_answer47)
  This picture shows.
  A)
   a canine tooth. done clear
  B)
   an incisor tooth. done clear
  C)
   a premolar tooth. done clear
  D)
   a molar tooth. done clear
  View Solution play_arrow

• question_answer48)
  The surface or the hardest layer on a tooth is the ________
  A)
   enamel.            done clear
  B)
        dentine. done clear
  C)
   cavity.              done clear
  D)
        both a and b. done clear
  View Solution play_arrow

• question_answer49)
  Pencillin, an antibiotic, is obtained from
  A)
   bacteria.           done clear
  B)
        viruses. done clear
  C)
   fungi.               done clear
  D)
        protozoa. done clear
  View Solution play_arrow

• question_answer50)
  Which of these cause dandruff on your scalp?
  A)
   Fungi                            done clear
  B)
   Viruses done clear
  C)
   Protozoa           done clear
  D)
        Bacteria done clear
  View Solution play_arrow