
Starch is stored in Potato tuber as
(a)Sugar is synthesized in leaves
(b)Sugar is transported from leaves to tubers
(c)In Tuber sugar is changed to starch
(d)All of the above
Answer
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Hint: The product of photosynthesis is sugar and oxygen. Photosynthesis occurs in the leaves of plants. Starch is the storage form of plant polysaccharide, especially abundant in tubers, forms, etc.
Complete answer:
Sugar or glucose in the end product of photosynthesis. It is produced in the leaves. This produced glucose or sugar is transported to different parts of the plant for the cellular requirements. It is transported to the tuber for storage. The glucose or sugar is again converted to starch for storage in the Tuber. Starch is the storage form of plant polysaccharide. It contains two kinds of glucose polymers, namely Alpha-amylase and beta-amylose or amylopectin. Glucose is usually converted into starch for storage. Starch is better for storage than glucose because it is insoluble. Plants like potatoes and other tubers, and also fruits like the banana store starch for later use. This starch is stored by special organelles, or cell subunits called amyloplasts.
Additional information:
Polysaccharides or glycans are the most complex type of carbohydrates. They are hydrolyzable, long, linear, and unbranched or branched chains, formed by glycosidic linkage of many Monosaccharide units.
Glycogen is the major short-term storage polysaccharide of animal tissues, especially abundant in liver and skeletal muscles. In small amounts, it may be present in bacteria and plants also.
Glycogen is an extensive and highly compact glucose polymer, structurally similar to amylopectin.
So, the correct answer is option (d) 'All of the above'.
Note: Cellulose is far by the most abundant structural polysaccharide of plants and indeed the most abundant organic substance on earth.
Heteropolysaccharides include agar, neutral sugars, and mucopolysaccharides. Agar is a starch-like heteropolymer.
Carbohydrates are the most abundant organic compounds in nature. They are polyhydroxy carbonyl compounds.
Complete answer:
Sugar or glucose in the end product of photosynthesis. It is produced in the leaves. This produced glucose or sugar is transported to different parts of the plant for the cellular requirements. It is transported to the tuber for storage. The glucose or sugar is again converted to starch for storage in the Tuber. Starch is the storage form of plant polysaccharide. It contains two kinds of glucose polymers, namely Alpha-amylase and beta-amylose or amylopectin. Glucose is usually converted into starch for storage. Starch is better for storage than glucose because it is insoluble. Plants like potatoes and other tubers, and also fruits like the banana store starch for later use. This starch is stored by special organelles, or cell subunits called amyloplasts.
Additional information:
Polysaccharides or glycans are the most complex type of carbohydrates. They are hydrolyzable, long, linear, and unbranched or branched chains, formed by glycosidic linkage of many Monosaccharide units.
Glycogen is the major short-term storage polysaccharide of animal tissues, especially abundant in liver and skeletal muscles. In small amounts, it may be present in bacteria and plants also.
Glycogen is an extensive and highly compact glucose polymer, structurally similar to amylopectin.
So, the correct answer is option (d) 'All of the above'.
Note: Cellulose is far by the most abundant structural polysaccharide of plants and indeed the most abundant organic substance on earth.
Heteropolysaccharides include agar, neutral sugars, and mucopolysaccharides. Agar is a starch-like heteropolymer.
Carbohydrates are the most abundant organic compounds in nature. They are polyhydroxy carbonyl compounds.
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