Question

Insectivorous plants commonly grow in areas where the soil is deficient in
(A) Carbon
(B) Nitrogen
(C) Potassium
(D) Phosphorus

Answer 1

Hint: Insectivorous plants commonly grow in areas where the soil is deficient in the chemical element with atomic number 7 and atomic mass is 14.0067 u. It is a nonmetallic element of group 15.

Complete answer:
Insectivorous plants commonly grow in areas where the soil is deficient in Nitrogen. Insectivorous plants are the plants that derive some or most of their nutrients (but not energy, which they derive from photosynthesis) from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants are mostly found to grow in places where the soil is thin or poor in nutrients, especially nitrogen, like acidic bogs.

Additional Information: Insectivorous plants use enzymes for digestion, they digest their prey through a process of chemical breakdown analogous to digestion in animals. The final products are mostly the nitrogenous compounds and salts, which are absorbed by the plants to enable their survival under otherwise marginal or hostile environmental conditions. Most of the insectivorous plant species are green in color which means they have chlorophyll that helps to manufacture food by photosynthesis from the raw materials of sunlight, water, and ${ CO }_{ 2 }$ within the presence of chlorophyll. Carnivorous plants are widespread but rather rare. they're almost entirely restricted to habitats like bogs, where soil nutrients are extremely limiting, but where sunlight and water are readily available. Only under such extreme conditions is carnivory favored to an extent that creates the adaptations advantageous.
So, the correct answer is ‘(B) Nitrogen’.

Note: The insectivorous plants are adapted in many ways like they are colorful and shiny in appearance to attract insects. They often have nectars and a pleasant odor to attract insects.