Choose the correct option for chemicals like caffeine,quinine,strychnine,and opium.

  • A
    Plant defense against grazers and browsers.
  • B
    Commercially extracted by humans from plants.
  • C
    Produced by plants.
  • D
    All of the above.

Explore More

Similar Questions

What are 'drugs' in the context of plant secondary metabolites?

Identify the alkaloid from the given options.

The pungent principle of mustard,$Sinigrin$,is due to:

Identify the toxin from the given options.

Which of the following are secondary metabolites?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo