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Question
Which of the following plant material is an effective imbibant?
Which of the following plant material is an effective imbibant?
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Solution
The correct option is A Phycocolloid obtained from red algae
Adsorption (surface attraction) of water by hydrophilic substances is called imbibition. This is a special type of diffusion and causes an increase in volume of the substances. The plant cell wall has cellulose and pectin which are hydrophilic and adsorb water onto their surface. Proteins, agar, starch also imbibe water.
The solids that adsorb the water are known as imbibants. They include substances like cellulose, pectin, starch and agar.
The water (liquid) that is adsorbed is called imbibate
Agar is considered as effective imbibant.
Imbibition power = Agar > Pectin > Starch > Cellulose
Agar is a phycocolloid obtained from red algae.
Cellulose is the most abundant organic material in the biosphere and reserve food material in plants is starch.
Adsorption (surface attraction) of water by hydrophilic substances is called imbibition. This is a special type of diffusion and causes an increase in volume of the substances. The plant cell wall has cellulose and pectin which are hydrophilic and adsorb water onto their surface. Proteins, agar, starch also imbibe water.
The solids that adsorb the water are known as imbibants. They include substances like cellulose, pectin, starch and agar.
The water (liquid) that is adsorbed is called imbibate
Agar is considered as effective imbibant.
Imbibition power = Agar > Pectin > Starch > Cellulose
Agar is a phycocolloid obtained from red algae.
Cellulose is the most abundant organic material in the biosphere and reserve food material in plants is starch.
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