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Learn Introductory Crop Physiology with Braimy – B.SC Agriculture
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Cell Wall - Definition, Structure, Functions and FAQs

a. Middle lamellae:

  • Consists of pectic acid in the form of Ca. and Mg. salts.
  • Hydrophilic in nature.

b. Primary wall:

  • Consists of cellulose, lignin and hemi-cellulose and some pectic substances and proteins.

c. Secondary wall:

  • Consists of cellulose and lignin.
  • Contain dead cells.


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