Answer:
Because it forms beta arrangements subsecuently forming microfibrils
Explanation:
Cellulose is a complex carbohydrate formed by a long polysaccharide of glucose molecules with <em>beta arrangements, these give a flat and rigid structure that held to each other through hydrogen bonds forming microfibrils that give their rigidity to the cell walls</em> (you can see this structure in the image added).
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Answer:
When the mirror is inside the focal point..?