A polysaccharide present as storehouse of energy of plant tissuesa)Chi...
Polysaccharide
A polysaccharide is a large molecule made of many smaller monosaccharides. Monosaccharides are simple sugars, like glucose. Special enzymes bind these small monomers together creating large sugar polymers, or polysaccharides. A polysaccharide is also called a glycan. A polysaccharide can be a homopolysaccharide, in which all the monosaccharides are the same, or a heteropolysaccharide in which the monosaccharides vary. Depending on which monosaccharides are connected, and which carbons in the monosaccharides connects, polysaccharides take on a variety of forms. A molecule with a straight chain of monosaccharides is called a linear polysaccharide, while a chain that has arms and turns is known as a branched polysaccharide.
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A polysaccharide present as storehouse of energy of plant tissuesa)Chi...
Starch as a Storehouse of Energy in Plant Tissues
Starch is a polysaccharide that serves as a primary storehouse of energy in plant tissues. Here's why it is the correct answer:
Structure:
- Starch is composed of glucose units linked together in long chains.
- It is made up of two types of glucose polymers - amylose (linear chain) and amylopectin (branched chain).
Storage Function:
- Plants synthesize starch during photosynthesis and store it in specialized structures like roots, tubers, and seeds.
- When the plant requires energy for metabolic processes or growth, it breaks down starch into glucose through hydrolysis.
Abundance:
- Starch is the most abundant carbohydrate in the human diet, mainly sourced from staple foods like rice, wheat, and potatoes.
- It is also a significant energy source for animals that consume plant-based diets.
Digestibility:
- Humans and many animals have enzymes (amylases) that break down starch into glucose for absorption in the digestive system.
- This makes starch a readily available source of energy for organisms that consume plants.
Conclusion:
In conclusion, starch is a crucial polysaccharide that serves as a storehouse of energy in plant tissues. Its structure, storage function, abundance in the diet, and digestibility highlight its importance as a primary energy source in the natural world.
A polysaccharide present as storehouse of energy of plant tissuesa)Chi...
Starch is a variant of this but present as a store house of energy in plant tissues.
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