Carbohydrates in the plants are stored in the form ofa)Glycogenb)Starchc)Glucosed)MaltoseCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The food prepared by the green leaves of a plant is in the form of a simple sugar called glucose. This glucose food made in the leaves is then sent to the different part of the plant.The extra glucose is changed into another food called starch.This  starch is stored in the leaves of the plant. Glucose and starch belongs to a category of foods called carbohydrates.The food like carbohydrates prepared by photosynthesis contain chemical  energy stored in them.

Answer

Starch

Starch is the usual form in which carbohydrates arestored as energy by plants

Answer

Starch

Answer

Carbohydrates in plants are primarily stored in the form of starch. Starch is a complex carbohydrate made up of glucose molecules. It is the main storage polysaccharide in plants and serves as a long-term energy reserve.

Here is a detailed explanation of why starch is the correct answer:

1. **Starch as a storage form:** Plants produce glucose through photosynthesis, which is then converted into starch for storage. Starch is an insoluble polysaccharide composed of glucose units joined together in a branched or unbranched chain.

2. **Structure of starch:** Starch is composed of two types of glucose polymers: amylose and amylopectin. Amylose is a linear chain of glucose molecules linked by α-1,4 glycosidic bonds, while amylopectin is a branched chain with α-1,4 glycosidic bonds and α-1,6 glycosidic bonds at branching points.

3. **Storage organs:** Starch is primarily stored in specialized plant organs such as roots, tubers, stems, and seeds. In roots and tubers, starch accumulates in specialized storage tissues like rhizomes, bulbs, and tubers. In stems, starch is stored in the pith, which is the central tissue. In seeds, starch is stored in endosperm, which serves as a nutrient source for the developing embryo.

4. **Function of starch:** Starch acts as an energy reserve in plants. When energy is required, starch is broken down into glucose molecules through the process of hydrolysis. These glucose molecules can then be utilized for energy production through cellular respiration or converted into other forms for growth and development.

5. **Detection of starch:** Starch can be detected through various chemical tests. One common test involves using iodine solution, which turns blue-black in the presence of starch. This test is often used in plant biology experiments to determine the presence of starch in different plant tissues.

In conclusion, carbohydrates in plants are stored in the form of starch. Starch serves as a long-term energy reserve and is stored in specialized plant organs. Its structure and function make it an ideal storage polysaccharide in plants.

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