
The four sketches (A, B, C and D) given below, represent four different types of epithelial tissue. Which one of these is correctly identified in the option given along with its correct location and function?

Epithelial Tissue | Location | Function | |
B | Columnar | Duct of gland | Secretion |
Epithelial Tissue | Location | Function | |
C | Cuboidal | Airsac of lung | Diffusion membrane |
Epithelial Tissue | Location | Function | |
D | Compound | Skin | Protection |
Epithelial Tissue | Location | Function | |
A | Squamous | Intestine | Absorption |

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

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


The graph below depicts the velocity of an enzyme-catalyzed reaction vs. substrate concentration. Identify the alphabets with the correct descriptions.
I. Enzyme activity
II. Substrate concentration at maximum velocity
III. Substrate concentration at which half of the maximum velocity
IV. Half of the maximum velocity

Study the following
(I) | value | Affinity of the enzyme | Inverse measure enzyme affinity |
(II) | Hydrolases | bonds | Linking compounds |
(III) | Transferases | Transfer of a group | Inhibitor of reaction |
(IV) | Emil Fisher | Lock and key hypothesis | Formation of ES complex |
The correct combinations are

Reason : It is formed by fusion of cells




