Multiple choice

Auxins are vital phytohormones that play various roles in growth responses. Auxins may be either naturally occurring or synthetic compounds. Which of the following is an example of naturally occurring auxin?

  1. Naphthylphthalamic acid

  2. Parascorbic acid

  3. Indole butyric acid

  4. Vernalin

  5. Phenylacetic acid

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

Phenylacetic acid is an example of naturally occurring auxin.