Botany - Morphology of Flowering Plants Question with Solution | TestHub

The cotton fibres represent epidermal prolongations of seed coat cells. A raw cotton fibre, on average, gives the following values on analysis : cellulose, $94\%$, protein - $1.3\%$, pectic substances $-0.9\%$, ash $-1.2\%$, wax $-0.6\%$, sugars $-0.3\%$ and traces of pigments and mineral matter.