The carbohydrate which lines the sieve pores in the phloem is

Options :
  1. Cellulose
  2. Callose
  3. Ribose
  4. Ribulose
Answer and Explanation :-

Answer: Option 2

Explanation:

A sieve pore is lined by a callose cylinder. Callose (Beta 1,3 glucan) is a carbohydrate which gets deposited on around the sieve pore

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