Botany Chapter 5: Morphology of Flowering Plants

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Questions and Answers

What is characterized by the presence of roots, stems, leaves, flowers, and fruits?

  • Algae
  • Fungi
  • Angiosperms (correct)
  • Mosses

All higher plants have the same external structure.

False (B)

What forms the underground part of a flowering plant?

Root system

What type of root is formed by the direct elongation of the radicle in dicotyledonous plants?

<p>Primary root</p> Signup and view all the answers

Match the types of roots to their descriptions:

<p>Primary root = First root formed from the radicle Secondary root = Root that branches from the primary root Tertiary root = Root that branches from secondary roots</p> Signup and view all the answers

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Study Notes

Overview of Angiosperm Morphology

  • Angiosperms, or flowering plants, exhibit a diverse range of external structures, collectively referred to as morphology.
  • Fundamental components of angiosperms include roots, stems, leaves, flowers, and fruits.

Importance of Classification and Terminology

  • Understanding morphological characteristics is essential for classifying higher plants.
  • Familiarity with standard technical terms and definitions aids in recognizing variations due to adaptations to different environments.
  • Adaptations may include features for protection, climbing, and storage.

Plant Structure

  • The root system is the underground part of flowering plants, while the shoot system is the portion above ground.
  • Common weeds demonstrate the presence of roots, stems, and leaves, with flowering and fruiting capabilities.

The Root System

  • In dicotyledonous plants, the primary root begins from the elongation of the radicle and grows into the soil.
  • The primary root develops lateral roots, categorized into secondary, tertiary, etc., contributing to the root hierarchy.

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