Multiple choice

How are products of photosynthesis transported to all parts of a plant?

  1. Through vessels and sieve tubes

  2. Through sieve tubes and companion cells

  3. Through tracheids and companion cells

  4. Through sieve tubes and parenchyma
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In plants, phloem is the tissue responsible for transporting organic nutrients, particularly the products of photosynthesis (sucrose). Phloem consists of sieve tubes (the conducting cells) and companion cells (which provide metabolic support to sieve tube elements). This combination allows efficient transport of sugars from source leaves to sink tissues.

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