Plz explain

Plz explain AIPMT & The annular and spirally thickened conductiv elements generally develop in the protoxylem wh, he root or stem is [AIPMT l) Elongating (2) Widening Differentiating (4) Maturing isade parenchyma is absent in leaves of

Dear student.

The correct answer is 2. widening

Annular and spiral thickening are commonly found in vessel and tracheids. The thickening occurs due to the deposition of lignin. The process happens when the root or stem is widening.

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Plz explain Plz explain AIPMT & The annular and spirally thickened conductiv elements generally develop in the protoxylem wh, he root or stem is [AIPMT l) Elongating (2) Widening Differentiating (4) Maturing isade parenchyma is absent in leaves of

Plz explain

Plz explain AIPMT & The annular and spirally thickened conductiv elements generally develop in the protoxylem wh, he root or stem is [AIPMT l) Elongating (2) Widening Differentiating (4) Maturing isade parenchyma is absent in leaves of