Multiple choice

Which one of the following is the purpose of adding agar in the medium for tissue culture ?

  1. Enrichment of micronutrients

  2. Maintenance of pH

  3. Solidification of the medium

  4. Supply of energy for growth

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Agar is a polysaccharide derived from red algae that is commonly added to plant tissue culture media as a gelling agent. Its primary function is to provide a solid or semi-solid matrix on which explants can grow without sinking into the liquid nutrient solution.