Question

Give a biological explanation for ‘all the food chains begin with green plants’.

Answer 1

Hint: All the food chain occurring in the ecosystem needs the energy to grow on another sub trophic level for achieving it all proper working of the food chain an automatic food producer is needed which can make its food with never-ending energy providing source. It gives relationships among the various organisms which are dependent on each other for food and energy.

Complete answer:
- The best autotrophic for making their food in our ecosystem is known to be the green plants.
- Plants can make their food from the sunlight source and water.
- Water provides free electrons and oxygen.
- Carbon dioxide is used for making the glucose and sunlight gives the photon by which the work of making autotrophic food is processed.
- They provide energy to the host who eats them.
- The energy is then transferred to carnivores who eat those herbivores.
- Further energy is transferred to the upper-class carnivores such as tigers or lions who eat the lower carnivores.
- When the upper carnivores end their life cycle due to old age or some tragedy the energy stored in the body is transferred to the dead and decay eating bacteria or the other microorganisms feeding on it.
- It is then formed in the organic source which can be further taken by the plants.
- This is how plants work or specifically green plants are the basis known as producers of the food chain.

Note: Food chain consists of producers and consumers. Producers mean the energy-producing organisms from the organic direct source and consumers mean the organisms consuming the producers. 100 percent energy is transferred from the direct source to plants and then on all other sub trophic levels on 10 percent energy is transferred from one organism to another, this is how it becomes a never ending process.