Case Study/Passage Based Questions:
Question 1:
Read the following and answer any four questions below from (i) to (v):
Bone is a solid, hard porous tissue. It forms the natural skeleton and gives the body its basic structure and also supports the body. Its matrix is impregnated with phosphates and carbonates of calcium and magnesium which provides hardness to it. The matrix also contains ossein protein. The matrix is arranged in concentric rings which are called lamellae. Bone cells lie between the lamellae in fluid-filled spaces called lacunae.
(i) Bone cells are also called :
(a) Lacunae
(b) Osteocytes
(c) Neutrophils
(d) Erythrocytes
Answer
Ans. (b) Osteocytes(ii) The matrix inside the bone is arranged in concentric rings called ………
(a) Cytoplasm
(b) Osteocyte
(c) Lacunae
(d) Lamellae
Answer
Ans. (d) Lamellae(iii) To form natural skeleton and to give support to the body is the main function of ……….
(a) Cells
(b) Muscles
(c) Bones
(d) Ligaments
Answer
Ans. (c) Bones(iv) The matrix of bone is impregnated with…………
(a) Carbon dioxide and oxygen
(b) Carbon dioxide and water
(c) Sulphates of sodium
(d) Phosphates and carbonates of calcium and magnesium
Answer
Ans. (d) Phosphates and carbonates of calcium and magnesium(v) Bone cells lie between the lamellae in fluid-filled spaces called ………….
(a) lamina
(b) osteocytes
(c) lacunae
(d) ossein
Answer
Ans. (d) osseinYou may also like:
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