Topic: Plant tissues and anatomy of root, stem, leaf· Structural Organisation in Animals and Plants

Phloem in gymnosperms lacks :

1. Albuminous cells and sieve cells

2. Sieve tubes only

3. Companion cells only

4. Both sieve tubes and companion cells

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Answer: 4. Both sieve tubes and companion cells

Key idea: Gymnosperm phloem has sieve cells and albuminous cells.

Sieve tubes and companion cells are characteristic of angiosperms. Gymnosperms have sieve cells, albuminous cells, and lack sieve tubes and companion cells. So gymnosperm phloem lacks both sieve tubes and companion cells.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Phloem in gymnosperms lacks :

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