STD-5, CHAPTER:1, MY BODY EXERCISE QAs

CHAPTER 1 : MY BODY

EXERCISE QUESTIONS AND ANSWERS

A.     FILL IN THE BLANKS.

1.      Wind pipe connects nose to the _______ in mammals.

Ans: Lungs

2.      Of the two jaws, only the ______ jaw moves.

Ans: Lower

3.      The backbone protects the __________.

Ans: Spinal cord

4.      Fish can feel waves with the help of their _________.

Ans: Lateral line

5.      A snake uses its  _______ to touch and smell objects.

Ans: Long tongue

6.      Eye is connected to the brain by the ________ nerve.

Ans: Optic

B.      MATCH THE FOLLOWING:

1.      Elbow                             a. Longest bone

2.      Wrist                              b. Eight flat bones

3.      Hip                                  c. Hinge joint

4.      Femur                            d. Ball and socket joint

5.      Skull                               e. Gliding joint

      Ans:

1.      Elbow                            c. Hinge joint

2.      Wrist                             e. Gliding joint

3.      Hip                                 d. ball and socket joint

4.      Femur                            a. longest bone

5.      Skull                               b. Eight flat bones

C.      TICK THE CORRECT OPTION.

1.      The joint in the shoulder is an example of a –

(a)   Hinge joint                                      (b)  Ball and socket joint

(c)    Pivot joint                                       (d) Gliding joint

      Ans: Ball and socket joint

2.      The framework of bones, that protects our heart and lungs, is known as the-

(a)   Spinal cord        (b) Skull          (c) Rib cage        (d) Pivot joint

      Ans: Rib cage

3.      Light enters the eyes through the –

(a)   Pupil                   (b) Cornea       (c) Retina           (d) Iris

      Ans: Pupil

4.      The part of the ear which helps in maintaining balance of our body is –

(a)   External ear       (b)  Ear drum       (c) Middle ear       (d) Inner ear

       Ans: Inner Ear

D.     ANSWER THE FOLLOWING QUESTIONS IN BRIEF.

1.      What is breathing?

Ans: The process of taking in oxygen and giving out carbon dioxide by the living organisms, is called breathing.

2.      How are fore limbs connected to the spine?

Ans: The fore limbs, or the arms are joined to the spine by the shoulder girdles and collar bone.

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