Multiple Choice QuestionsSucrose is not a reducing sugar since
it contains no free aldehyde or keto group adjacent to, -CHOH group
it is built up of a fructose unit
it is optically active
it is chemically stable
Dialysis can be used to separate
protein and starch
glucose and protein
glucose and NaCl
glucose and fructose
Adenosine is an example of
nucleotide
purine base
pyrimidine base
nucleoside
D.
nucleoside
Adenosine is an example of nucleoside. A nucleoside contains only two basic component of nucleic acid i.e a pentose sugar and a nitrogeneous base. When adenine [purine base] combines with ribose sugar, adenosine is formed. A nucleotide contains all the three basic component of nucleic acids i e 'a phosphoric acid group, a pentose sugar and a nitrogeneous base (purines, pyrimidiness).
The statement that is not correct is
Aldose or ketose sugars in alkailne medium do not isomerise
Carbohydrates are optically active
Pentaacetate of glucose does not react with hydroxylamine
Lactose has glycosidc linkage between C4 of glucose and C1 of galactose unit.
Glycogen is
a polymer of β-D-glucose units
a structural polysaccharide
structurally very much similar to amylopectin
structurally similar to amylopectin but extensively branched
Cheilosis and digestive disorder are due to the deficiency of
thiamine
ascorbic acid
riboflavin
pyridoxine
Which of the following is correct about H-bonding in DNA?
A - T; G - C
A - G; T - C
G - T; A - C
A - A; T - T
The glycosidic linkage present in sucrose is between
C-1 of -β- glucose and C-4 of α- glucose
C-1 of α- glucose and C-4 of β-fructose
C-1 of α- glucose and C-4 of α- glucose
C-1 of α- glucose and C-2 of β-fructose
Hormones are secreted by ductless glands of human body. Iodine containing hormone is
Adrenoline
Thyroxine
Testosterone
Insulin
Switch
