The primary cell wall of a plant cell is composed mainly of
- A. cellulose
- B. chitin
- C. peptidoglycan
- D. lignin
Explanation
Cellulose microfibrils, polymers of beta glucose, give the plant wall its strength, while chitin builds fungal walls and peptidoglycan bacterial ones. Lignin is a secondary strengthening chemical laid down later in woody tissue, not the primary wall material.
Related questions
The fluid mosaic model describes the plasma membrane as
The statement that all cells arise from pre-existing cells was added to the cell theory by
The large central vacuole of a mature plant cell is bounded by a membrane called the
Which structure is normally absent from the cells of higher plants?
Plasmodesmata are