CBSE Class 11 Biology Chapter 7 Revision Quiz
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Questions and Answers

Which type of epithelium is formed by cube-like cells with square sections?

  • Simple epithelium (correct)
  • Columnar epithelium
  • Stratified epithelium
  • Transitional epithelium

What type of junctions are specialised structures that physically and functionally connect individual cells?

  • Desmosomes (correct)
  • Gap junctions
  • Tight junctions
  • Hemidesmosomes

Which classification of tissues is based on the structure of cells according to their functions?

  • Muscular tissues
  • Nervous tissues
  • Connective tissues
  • Epithelial tissues (correct)

What is the appearance of flattened cells with irregular borders arranged to form a thin layer in epithelial tissues?

<p>Squamous (D)</p> Signup and view all the answers

Which type of epithelium appears polygonal when viewed from the top?

<p>Simple epithelium (C)</p> Signup and view all the answers

What is the name for the layer of cube-like cells with hexagonal free surfaces in epithelial tissues?

<p>Cuboidal cells (C)</p> Signup and view all the answers

What are the three types of junctions mentioned in the text?

<p>Tight, Adherent, Gap (A)</p> Signup and view all the answers

Which type of tissue is known for its high fat content?

<p>Adipose Tissue (A)</p> Signup and view all the answers

In which part of the frog's body are its various systems housed?

<p>Body cavity (A)</p> Signup and view all the answers

What is the primary benefit of frogs to the ecosystem mentioned in the text?

<p>Maintaining the balance in the food chain (C)</p> Signup and view all the answers

Which system in frogs is responsible for control and coordination of activities?

<p>Nervous system (C)</p> Signup and view all the answers

Where can students find Chapter 7 notes for Class 11 Biology according to the text?

<p>Extramarks' official website (D)</p> Signup and view all the answers

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).

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Description

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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