Multiple choice

Tobacco is a valuable cash crop. Which of the following constitutes about 0.6 -3.0% of the dry weight of tobacco?

  1. Acetaldehyde

  2. Nicotine

  3. Isoniazid

  4. 4-Methylpyridine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nicotine is an alkaloid found in the nightshade family of plants that constitutes approximately 0.6-3.0% of the dry weight of tobacco, with biosynthesis taking place in the roots and accumulation occurring in the leaves. It functions as an antiherbivore chemical with particular specificity to insects.

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