Multiple choice

Pheromones are chemical signals secreted by the insects. Among the following, ------------------ acts as a pheromone.

  1. Cinnoline

  2. 2-Butene

  3. cis-3-Hexenal

  4. Citral

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

cis-3-Hexenal is one of the major volatile compounds in ripe tomatoes. It is produced in small amounts by most plants and it acts as an attractant to many predatory insects. It is also a pheromone in many insect species.