12 Questions
Which type of epithelium is formed by cube-like cells with square sections?
Simple epithelium
What type of junctions are specialised structures that physically and functionally connect individual cells?
Desmosomes
Which classification of tissues is based on the structure of cells according to their functions?
Epithelial tissues
What is the appearance of flattened cells with irregular borders arranged to form a thin layer in epithelial tissues?
Squamous
Which type of epithelium appears polygonal when viewed from the top?
Simple epithelium
What is the name for the layer of cube-like cells with hexagonal free surfaces in epithelial tissues?
Cuboidal cells
What are the three types of junctions mentioned in the text?
Tight, Adherent, Gap
Which type of tissue is known for its high fat content?
Adipose Tissue
In which part of the frog's body are its various systems housed?
Body cavity
What is the primary benefit of frogs to the ecosystem mentioned in the text?
Maintaining the balance in the food chain
Which system in frogs is responsible for control and coordination of activities?
Nervous system
Where can students find Chapter 7 notes for Class 11 Biology according to the text?
Extramarks' official website
Study Notes
Epithelial Tissue
- Cuboidal epithelium is formed by cube-like cells with square sections.
Cell Junctions
- Tight junctions, desmosomes, and gap junctions are specialized structures that physically and functionally connect individual cells.
Tissue Classification
- Histological classification is based on the structure of cells according to their functions.
Epithelial Cell Appearance
- Flattened cells with irregular borders arranged to form a thin layer in epithelial tissues appear scale-like.
Epithelial Tissue Types
- Simple squamous epithelium appears polygonal when viewed from the top.
- Cuboidal epithelium is characterized by cube-like cells with hexagonal free surfaces.
Junction Types
- The three types of junctions mentioned are tight junctions, desmosomes, and gap junctions.
Adipose Tissue
- Adipose tissue is known for its high fat content.
Frog Anatomy
- In frogs, various systems are housed in the body cavity.
Ecological Importance
- The primary benefit of frogs to the ecosystem is that they serve as a food source for other animals.
Nervous System
- The nervous system in frogs is responsible for control and coordination of activities.
Resource
- Students can find Chapter 7 notes for Class 11 Biology elsewhere (no specific location mentioned in the text).
Test your understanding of the structural organisation in animals covered in Chapter 7 of Class 11 Biology with this revision quiz. Topics include cells, tissues, organs, and their functions in animal bodies.
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