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Structural Organisation in Animals (Frog)

ICSE · Class 11 · Biology

Complete topic list for Structural Organisation in Animals (Frog) in ICSE Class 11 Biology. Key concepts, sub-topics, and what to focus on for board exams.

90 questions40 flashcards5 concepts

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A dorsal view diagram of a frog, highlighting its body divisions (head, trunk), prominent eyes with nictitating membrane, tympanum, and webbed hindlimbs.
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4 Topics · ICSE Class 11 Biology

Topics in Structural Organisation in Animals (Frog)

1

1. Classification, Habitat and External Features

  • Rana tigrina belongs to Phylum Chordata, Subphylum Vertebrata, Superclass Tetrapoda, Class Amphibia, Order Anura, Genus Rana and Species tigrina.
  • Frogs are amphibious and cannot survive in brackish or salt water.
  • They are found in freshwater bodies such as ponds, lakes, ditches, pools and slow running streams, as well as in moist grassy land near water.
2

2. Feeding, Mouth and Alimentary Canal

  • Frogs are carnivorous and feed on insects, spiders, earthworms, snails, fishes and small frogs.
  • Prey is captured by the long, extensible and sticky tongue.
  • The tongue is posteriorly bifid and free, with its front end attached to the floor of the mouth.
3

3. Digestive Glands and Digestion

  • The liver is the largest digestive gland and is reddish brown.
  • It lies in the anterior part of the body cavity and has a large left lobe and a smaller right lobe.
  • The gall bladder lies between the liver lobes and stores bile.
4

4. Circulatory System and Heart

  • The blood vascular system of frog is closed type.
  • It includes heart, blood vessels and blood.
  • The heart is red, triangular and muscular, and lies in the anterior part of the body cavity at the level of the forelegs.

Key Concepts

Central concept: Structural organisation and functional systems of frog

Frog classificationExternal morphologyDigestive systemCirculatory systemRespiratory systemNervous systemReproductive systemAdaptive behaviour

Frequently Asked Questions

What are the important topics in Structural Organisation in Animals (Frog) for ICSE Class 11 Biology?
Key topics in Structural Organisation in Animals (Frog) include Structural Organisation in Animals (Frog) - Complete Overview, Complete Classification and Overview of Frog (Rana tigrina), Mind map showing the major external features of a frog's body and their locations.. These are the concepts ICSE Class 11 examiners draw on most — study them first, then practise related questions.
How to score full marks in Structural Organisation in Animals (Frog) — ICSE Class 11 Biology?
Understand the core concepts first, then work through the 90 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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