1. Wood consists mostly of secondary cell wall, and holds the plant up against gravity. 2. Secondary cell walls provide additional protection to cells and rigidity and strength to the larger plant.3. Some secondary cell walls store nutrients, such as those in the cotyledons and the endosperm. 4. Low self-discharge ( LSD ) allows secondary cells to be charged prior to shipping. 5. It is known as a'secondary cell 'because its button cells to megawatt grid systems. 6. Separate sets of " CesA " genes are involved in primary and secondary cell wall biosynthesis. 7. The secondary cell wall consists primarily of cellulose, along with other polysaccharides, lignin, and glycoprotein. 8. As shoots grow and age, the cells develop secondary cell walls that have a hard and tough structure. 9. The cells develop an extensive secondary cell wall that is laid down on the inside of the primary cell wall. 10. These cells then go on to form thickened secondary cell walls, composed mainly of cellulose, hemicellulose and lignin.
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