Multiple choice

Rate of translocation of photosynthesis in sieve tubes is

  1. 3-5 mm/hour

  2. 3-5 cm/hour

  3. 13-15 cm/hour

  4. 50-100 cm/hour

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The rate of translocation of organic solutes (photosynthates) in the phloem sieve tubes is generally accepted to be in the range of 50 to 100 cm/hour.