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ICSE Class 7 Biology Question 6 of 16

Classification of Plants — Question 8

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Question 4

Study the figure given alongside and answer the following questions :

Study the figure given alongside and answer the following questions: Concise Biology Solutions ICSE Class 7.

(i) Identify the organism. Write its common name as well as scientific name.

(ii) Label the guidelines 1 to 5.

(iii) Which kingdom does it belong to ?

(iv) Write one important role of a part shown as 2.

(v) Mention one very specific feature of this category of plants.

Answer

(i) The organism shown in the given figure is Bread Mould (fungi). While it is commonly known as Bread Mould, its scientific name is Rhizopus.

(ii) The guidelines 1 to 5 are:
      1 → Spores
      2 → Sporangium
      3 → Sporangiophore
      4 → Rhizoids
      5 → Node

(iii) Bread Mould belongs to Kingdom Fungi.

(iv) Sporangium are the spore containing bodies. When the sporangium bursts open, the spores are dispersed into the air. When they land on a suitable substratum, each can grow to form a new mycelium.

(v) This category of plants live on dead, decaying organic matter, so they are called Saprophytes.

Chapter 1: Classification of Plants — ICSE Class VII Biology Notes

Complete ICSE Class VII Biology study guide on Classification of Plants covering all five divisions from Thallophyta to Angiosperms. Learn the differences between monocots and dicots, understand vascular and non-vascular plants, and master plant division features with examples.

Key Concepts and Topics

Topics covered: Thallophyta, Bryophyta, Pteridophyta, Gymnosperms, Angiosperms, Monocots, Dicots

Weightage: Approximately 8 marks in the exam

Important Points to Remember

  • Five divisions of plant kingdom from simplest to most complex
  • Thallophyta: no true roots/stems/leaves, simple thallus body
  • Bryophyta: amphibians of plant world, need water for reproduction
  • Pteridophyta: first plants with vascular tissue, reproduce by spores
  • Gymnosperms: naked seeds in cones, needle-like leaves
  • Angiosperms: flowering plants, seeds in fruits, most diverse group
  • Monocots vs Dicots: cotyledons, venation, roots, flower parts

Frequently Asked Questions

Q: What are the five divisions of the plant kingdom?

A: Thallophyta, Bryophyta, Pteridophyta, Gymnosperms, and Angiosperms.

Q: Why are bryophytes called amphibians of the plant world?

A: Because they live on land but need water for reproduction, just like amphibians.

Q: How are monocots different from dicots?

A: Monocots have one cotyledon, parallel leaf veins, and fibrous roots. Dicots have two cotyledons, reticulate veins, and tap roots.

Exam Preparation Tips

  • Focus on understanding concepts rather than rote memorization
  • Practice drawing and labelling diagrams regularly
  • Use comparison tables for topics that require differentiation
  • Solve previous year questions and practice papers
  • Review the chapter notes provided by Bright Tutorials for comprehensive coverage

For complete chapter notes, practice questions, and test papers, contact Bright Tutorials at 9403781999.