Question

The phloem gymnospermic plants lack phloem parenchyma / sieve tubes / sieve plates/ and companion cells

Answer 1

Answer:

The phloem is the principal food-conducting tissue of vascular plants. Its elements are elongated, just like those of the xylem. ... Sieve cells are the only type of food-conducting cells in most seedless vascular plants and gymnosperms, whereas in angiosperms only sieve-tube members are present.

Answer 2

Sieve cells are found in gymnosperm not sieve tubes.

Sieve tubes and companion cells are absent in gymnosperm.

Hope this may help you..