Which one of the following does not correctly match with each other?
Silk - polyamide
Lipase - enzyme
Butter - fat
Oxytocin - enzyme
What is nature of glucose - glucose linkage in starch that makes its so susceptible to acid hydrolysis?
Starch is hemiacetal
Starch is acetal
Starch is polymer
Starch contains only few molecules of glucose
What is obtained when glucose is reacted with fehling solution?
cupric oxide
cuprous oxide
saccharic acid
Both ( b ) and ( c )
What is the product of water hydrolysis of sucrose?
two molecules of glucose
two molecules of fructose
one molecule of each glucose and fructose
one molecule and each glucose and mannose
Which of the following solution will dissolve cellulose in it?
ammoniacal cupric hydroxide solution
waver
organic solvent
None of the above
What is indicated by the letter 'D' in D - glucose?
configuration at all chiral carbons
dextrorotatory
that is a monosaccharide
configuration at a particular chiral carbon.
Which of the following states that glucose is cyclic compound?
Glucose undergoes Tollen's reaction
Glucose reacts with phenyl hydrazine
Glucose fails to react with sodium hydrogen sulphite
Glucose reacts with nitric acid
What is the monomer units of starch?
α- glucose
β- glucose
pyranose
galactose
How many chiral carbon atoms are there in β -D ( + )glucose.
five
six
three
four
Which of the following is a constituent of α - maltose?
one α - D -glucopyranose unit and one β - D - glucocpyranose unit with 1 - 2 glycosideic linkage.
two α - D -glucopyranose unit with 1 - 2 glycosidic linkage.
two β - D -glucopyranose unit with 1 - 4 - glycosidic linkage
two α - D -glucopyranose unit with 1 - 4 glycosidic linkage.