Which of the followings plant material is an efficient water imbibant? (a) Agar (b) Cellulose (c) Lignin (d) Pectin
Agar is an efficient water imbibant as it is a component made up of subunits of sugar galactose. When it is dissolved in boiling water and cooled, it looks like a gel and is often used to solidify the culture medium as it cannot be degraded by bacteria.