Structural Organisation in Animals
CBSE · Class 11 · Biology
Complete topic list for Structural Organisation in Animals in CBSE Class 11 Biology. Key concepts, sub-topics, and what to focus on for board exams.
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Topics in Structural Organisation in Animals
1. Levels of Organisation
- Hydra is made of different types of cells and is used as a simple example before tissue organisation.
- A tissue is a group of similar cells along with intercellular substances that performs a specific function.
- All complex animals have four basic types of tissues.
2. Frog: General Features and Morphology
- Frog belongs to class Amphibia of phylum Chordata.
- Rana tigrina is the most common frog species in India.
- Frog is cold blooded or poikilotherm.
3. Digestive System
- Frog is a carnivore with a short alimentary canal.
- Food is captured by the bilobed tongue.
- The alimentary canal includes buccal cavity, oesophagus, stomach, intestine, rectum and cloaca.
4. Respiration
- Frogs respire in water and on land by different methods.
- In water, skin acts as an aquatic respiratory organ by diffusion; this is cutaneous respiration.
- On land, buccal cavity, skin and lungs act as respiratory organs.
Key Concepts
Central concept: Organisation of cells into tissues, organs, and organ systems in animals, with frog as a model organism
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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