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CBSE Class 9 Answered

Tell me more about thallophyta

Asked by Aksharreddy1 | 17 Nov, 2018, 09:58: AM
Expert Answer

Characteristics of Division Thallophyta:

  • Small-sized and grow in moist places.
  • Have an irregularly shaped, undifferentiated plant body called thallus.
  • Have a cell wall made of cellulose.
  • Have green pigment chlorophyll, but some may also have red or brown pigments.
  • Autotrophic in nature and the reserve food material is generally starch.
  • Do not have a vascular system.
  • Asexual reproduction occurs through spore formation, while sexual reproduction occurs through conjugation.

Uses:

  • Often used as food.
  • Used to obtain a gelling agent.
  • Source of biofuels.
  • Rich sources of vitamins and minerals.
  • Pigments obtained from algae can be used as natural dyes.

Examples:

  • Nostoc
  • Oscillatoria
  • Spirulina
  • Chara
  • Chlamydomonas
  • Spirogyra
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