First slide

The Tissues

Question

Choose the set of cells of phloem between which plasmodesmatal connections are present
A.   Phloem parenchyma cell – Phloem parenchyma cell
B.   Sieve tube element – Companion cells
C.   Sieve tube element – Phloem fiber
D.   Phloem parenchyma cell – Phloem fiber

Easy

A

A and C
B

B and D
C

A and D
D

A and B

Solution

Plasmodesmatal connections exist between two living cells present in the same row or adjacent to each other. They are not present between a fiber and a living cell as the fibers are usually dead cells as they belong to sclerenchyma.

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