Chemistry - Biomolecules Question with Solution | TestHub
Which statements about carbohydrates are CORRECT?
I. Inulin is a polymer of sucrose.
II. Glucose is a respiratory substrate and is also called fruit sugar.
III. Starch forms helical secondary structures in which it can hold I2molecules.
IV. The variant of cellulose in animals is glycogen.
Options:
Answer:
Solution:
The biomolecules with carbon, oxygen and hydrogen atoms are known as carbohydrates. Depending on the composition, they can either be monosaccharide, disaccharide or polysaccharides. Sucrose is a disaccharide and can be broken down to glucose and fructose. Inuline is a polymer of fructose.
Glucose and fructose are monosaccharides, out of which fructose is also known as fruit sugar.
Starch forms helical secondary structures in which it can hold I2molecules. The starch-I2is blue in colour.
Cellulose is a homopolymer. Starch is a variant of this but present as a store house of energy in plant tissues. Animals have another variant called glycogen.
