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ICSE Class 7 Biology Question 16 of 16

Classification of Plants — Question 5

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Question 5

Give two characteristics and one example for each of the following:

  1. Algae
  2. Fungi
  3. Monocot
  4. Dicot
  5. Bryophyta
  6. Pteridophyta
  7. Gymnosperms
Answer
  1. Two characteristics of Algae are:
    1. They are aquatic in habitat.
    2. They have chlorophyll and hence they are autotrophs.
      Example — Spirogyra
  2. Two characteristics of Fungi are:
    1. Body is composed of thread like structure called hyphae.
    2. Chlorophyll is absent and they show heterotrophic nutrition.
      Example — Agaricus (Mushroom)
  3. Two characteristics of Monocot are:
    1. Seeds have a single cotyledon.
    2. Leaves have parallel venation and roots are fibrous.
      Example — Maize
  4. Two characteristics of Dicot are:
    1. Seeds have two cotyledons.
    2. Leaves with reticulate venation and roots show tap root system.
      Example — Pea
  5. Two characteristics of Bryophyta are:
    1. They have leaves and stems but no roots.
    2. They have root like structure known as rhizoids.
      Example — Moss
  6. Two characteristics of Pteridophyta are:
    1. They have well formed leaves, stems and roots.
    2. They do not produce flowers and seeds.
      Example — Fern
  7. Two characteristics of Gymnosperm are:
    1. Flowers and fruits are absent.
    2. Bear naked seeds which are not enclosed in a fruit.
      Example — Pine

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.