Multiple choice

Root nodules appear red due to the presence of

  1. anthocyanin

  2. phytochrome

  3. leg haemoglobin

  4. cytochromes

  5. chlorophyll

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

It is an oxygen carrier and a hemoprotein found in the nitrogen-fixing root nodules of leguminous plants.