CTET PAPER II 2021 · PYQ · Human Body / Skeletal-Muscular System · easy
Which of the following represents correct matching set? (a) helps in the movement of body by contraction and relaxation. (b) Hard structure which forms the skeleton (c) Part of skeleton which can be bent (d) Joins the chest bone and back bone together to form an enclosure. Match with: (i) Cartilage (ii) Muscles (iii) Rib-cage (iv) Bones
Answer
The correct answer is B: (a)–(ii), (b)–(iv), (c)–(i), (d)–(iii). Muscles contract and relax to enable body movement, so (a)→(ii). Bones form the hard skeleton, so (b)→(iv).
A.(a)–(i), (b)–(iii), (c)–(ii), (d)–(iv)
B.(a)–(ii), (b)–(iv), (c)–(i), (d)–(iii)✓ Correct
C.(a)–(iii), (b)–(ii), (c)–(i), (d)–(iv)
D.(a)–(iv), (b)–(iii), (c)–(ii), (d)–(i)
Explanation
Muscles contract and relax to enable body movement, so (a)→(ii). Bones form the hard skeleton, so (b)→(iv). Cartilage is the bendable part of skeleton (found in the ear, nose, etc.), so (c)→(i). The rib-cage joins the chest bone (sternum) and backbone (spine) to form a protective enclosure for organs, so (d)→(iii). Therefore option (2) is the correct matching.
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