Question Bank - Environmental Studies

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Whole Moong or Chana seeds are dipped overnight in water and left a day / two. The part of the sprout which develops first is

A.
Stem
B.
leaf
C.
root
D.
fruit

Solution:

Concept:Germination:?The essential procedure by which diverse plants emerge from a single seed into a plant is known as seed germination.Both crop productivity and quality are affected by this process.The sprouting of a seedling from an angiosperm or gymnosperm seed is a common example of seed germination.Explanation:?Sprout developing process in moong or chana seed:First, we have to soak chana or moong whole seeds in a Petri dish or container filled with water.The next day, drain the excess water and cover the seeds with a wet cotton cloth.Keep the cotton cloth moist for 2-3 days by soaking them in water at regular intervals.Seeds may be washed or rinsed each day to prevent rotting.Then the germination process starts.Root:It is one of the most essential stages of germination when the seed begins to take water from the ground.During germination, the white structure that appears first develops into a root.The radicle emerges to form a primary root.The small hair-like outgrowths formed later are root hairs.The activated enzymes are the ones who start the process.The root grows downwards.Thus, the part of the sprout which develops first is the root. Additional InformationNutrition absorbing process:?Most plants retain food storage with their seeds.Such as carbohydrates, proteins, or oils.The growing embryo receives nutrients from this food store.Hydrolytic enzymes are activated when the seed absorbs water.These stored food resources are broken down into metabolically usable molecules.Shoot rising:?During the stage, by rupturing the seed covering, the plumule produces a sprout.The shoot rises upwards towards the soil's surface.Leaf appearing:?The cotyledons spread out and unfold.It leads to the development of the first leaves.After that, the plant is now ready to begin the photosynthesis process.

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