The cell wall of spirogyra contains:

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SSC Selection Post 2024 (Matriculation Level) Official Paper (Held On: 25 Jun, 2024 Shift 1)
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  1. lignin
  2. cellulose
  3. suberin
  4. Chitin

Answer (Detailed Solution Below)

Option 2 : cellulose
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The correct answer is cellulose

Key Points

  • The cell wall of spirogyra contains cellulose.
  • Cellulose is a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units.
  • It is a primary structural component of green algae and plants, making up about 30% of their cell walls.
  • Other substances like lignin, suberin, and chitin are found in different types of organisms or serve different functions.

Additional Information

  • Spirogyra is a genus of filamentous green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is characteristic of the genus.
  • It is commonly found in freshwater habitats and is known for its role in photosynthesis.
  • Cellulose in the cell wall provides structural support and protection, maintaining the shape and rigidity of the cells.
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