
Identify and name the type of tissues present in the Skin.
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.

Statement I : Tendons attach one bone with another bone.
Statement II : Epiglottis is formed by elastic cartilage.
The correct option among the following is

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



Match the Column-I with Column-II and select the correct option
Column-I | Column-II | ||
(a) | Ciliated columnar epithelium | (i) | Endothelium |
(b) | Cuboidal epithelium | (ii) | Upper respiratory tract |
(c) | Squamous epithelium | (iii) | Thyroid follicle |



(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





Reason : It is formed by fusion of cells





Study the following statements
Compound epithelium forms the lining of the larger pancreatic ducts as stratified cuboidal epithelium
Cartilage is a vascular tissue surrounded by fibrous connective tissue sheath called perichondrium
Gap junctions in cardiac muscles permit electrical impulses to be conducted rapidly
Myelinated nerve fibres are found in grey matter of the central nervous system
Among the above, identify incorrect statements


