McqMate
| Q. |
Cellulose is the chief constituent of – |
| A. | cell wall |
| B. | cell membrane |
| C. | secondary wall of xylem |
| D. | body wall of insects |
| Answer» A. cell wall | |
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Explanation: In the primary (growing) plant cell wall, the major carbohydrates are cellulose, hemicellulose and pectin. The cell wall in plants provides the most significant difference between plant cells and other eukaryotic cells. The cell wall is rigid (up to many micrometers in thickness) and gives plant cells a much defined shape. |
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