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Which of the following helps in maintenance of the pressure gradient in sieve tubes?

NEET UG 2024 — Botany Transport in Plants

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Which of the following helps in maintenance of the pressure gradient in sieve tubes?

Official previous-year question

Held on 30 Apr 2024 · Verified 9 Jul 2026.

Options

  1. A

    Albuminous cells

  2. B

    Sieve cells

  3. C

    Phloem parenchyma

  4. D

    Companion cells

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