
What is elastic cartilage?
Important Questions on Structural Organisation in Animals
Match the type of cells in Column with the organs they are part of, listed in Column
Column | Column | ||
P. | Chondroblast | i. | Bone |
Q. | Osteoclast | ii. | Brain |
R. | Microglia | iii. | Cartilage |
S. | Pneumocyte | iv. | Lung |
Choose the CORRECT combination.




Study the following statements and identify the correct statements-
Microglial cells keep the cerebrospinal fluid in the ventricles of brain in constant circulation
Arrector pili muscles are unstriated muscles
Basophils remove antigen-antibody complexes from the blood
Perichondrium is absent in fibrous cartilage

(i) They do not need to reproduce
(ii) They are somatic cells
(iii) They do not metabolize
(iv) All their internal space is available for oxygen transport


Choose the correct answer from the options.
Elastin protein is produced from _____ tissue. (connective / muscular)





Choose the right option from the bracket.
White fibre is produced by _____ protein. (elastin / collagen)


Choose the correct answer from the option.
Osteocyte cell is found in _____ tissue. (muscular / osseous)


Fill in the blank with the correct option given in the bracket.
The protein found in cartilage is _____. (ossein/chondrin)


Choose the correct option from the bracket:
The smallest blood cell is _____. (erythrocytes / thrombocytes)


