Case Study and Passage Based Questions for Class 9 Science Chapter 6 Tissues

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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) ossein

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