
Draw the diagram of a fibroblast.
Important Questions on Structural Organisation in Animals
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



Which one of the following is incorrect regarding WBCs?
(a) Monocytes migrate from the bloodstream to other tissues and differentiate into tissue-resident macrophages, Kupffer cells in the liver.
(b) Eosinophils modulate allergic inflammatory responses.
(c) Basophils release histamine for inflammatory response.
(d) Natural killer cells are a type of phagocytic erythrocytes.

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.

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


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.
A) Blood coagulation is also called haemolysis.
B) Blood clotting is a change in plasma.
C) Serum does not contain clotting factors like prothrombin and fibrinogen.
D) Proconvertin is involved in extrinsic pathway.
Select the incorrect statement.

Reason : It is formed by fusion of cells





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


