Tissues in Action | Class 9 Science Notes
By ConceptScroll Team · Published on 17 July 2026 · 2 min read
Tissues in Action – this guide gives you a concise, exam-ready overview of Tissues in Action from Class 9 Science, written by ConceptScroll editors and reviewed against the latest NCERT textbook.
Animal Tissues
Animal tissues are broadly classified into four types: epithelial, connective, muscular, and nervous tissues. Each type has a specific structure and function that contributes to the overall physiology of animals.
Epithelial tissue covers body surfaces and lines internal organs and cavities. It protects the body, absorbs nutrients, and secretes substances. Connective tissue supports and binds other tissues. It includes bone, cartilage, tendons, ligaments, blood, and adipose tissue. Bone and cartilage provide structural support, tendons connect muscles to bones, and ligaments connect bones to bones.
Muscular tissue is responsible for movement. There are three types: skeletal (voluntary movement), smooth (involuntary movement in organs), and cardiac (heart muscle). Nervous tissue controls and coordinates body activities by transmitting electrical impulses.
Understanding these tissues helps explain how animals move, respond to stimuli, and maintain their internal environment.
📊 Diagram: Diagrams show epithelial tissue layers on skin and internal organs. Connective tissue types like bone and cartilage are depicted with their structure. Muscular tissue types are illustrated with muscle fiber arrangements. Nervous tissue is shown with neurons transmitting impulses.
🧪 Activity: Observation of animal tissue slides under microscope to identify epithelial, muscular, and connective tissues.
🔗 Connection: This section leads to detailed study of muscular and skeletal tissues and their role in movement.
Frequently asked questions
Which of the following best defines a tissue in multicellular organisms?
A group of cells similar in structure performing a specific function
Why do plant cells have a rigid shape compared to animal cells?
Because plant cells have a rigid cell wall made of cellulose
Which type of meristematic tissue is responsible for the increase in length of roots and shoots in plants?
Apical meristem
In the experiment with onion bulbs placed in jars A and B, why did the roots in jar B stop growing after the root tips were cut?
Because root tips contain actively dividing cells essential for growth
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Clear NCERT-aligned notes on खाद्य संसाधनों में सुधार for Class 9 Science.
- खाद्य संसाधनों में सुधार | Class 9 Science Notes
Clear NCERT-aligned notes on खाद्य संसाधनों में सुधार for Class 9 Science.
- खाद्य संसाधनों में सुधार | Class 9 Science Notes
Clear NCERT-aligned notes on खाद्य संसाधनों में सुधार for Class 9 Science.