True statement for cellulose molecule:
1.  β–1–4 linkage, unbranched
2.  β–1–4 linkage, branched
3.  α–1–4 linkage, branched
4.  β–1–6 linkage, unbranched

The most abundant organic compound on earth is:
1.  Protein
2.  Cellulose
3.  Lipids
4.  Steroids

In plants, inulin and pectin are:
1.  Reserved material
2.  Wastes
3.  Excretory material
4.  Insect-attracting material