101 .What are the two routes in
which fructose is converted into glucose in the liver?
Answer : ( 1 ) Fructose may be
phosphorylated to fructose - 6 – phosphate by hexokinase and then converted to
glucose – 6 – phosphate which may be dephosphorylated to glucose by a
phosphatase .
( 2 ) Fructose may be phosphorylated to
fructose - 1 – phosphate by fructokinase and later to fructose – 1- 6 –
diphosphate, which then converted to fructose - 6 – phosphate and ultimately
form glucose.
102 .Which one is formed from
glucose and involved in detoxification reaction?
Answer : Glucuronic acid
.
103 . Which pathway in glycolysis
is called anaerobic pathway?
Answer : Embden Meyerhof pathway
104 . What are the other names
for citric acid cycle?
Answer : Kreb’s cycle,
tricarboxylic acid cycle (TCA).
105 . What are the end products
formed from glycogen during muscle contraction under anaerobic condition?
Answer : Pyruvate and lactate
106 . In which region all the
enzymes of glycolysis are found?
Answer : Extramitochondrial soluble
fraction of the cell, the cytosol
107 . What is the important
reaction takes place in all tissue in glycolytic pathway?
Answer : Glucose is
phosphorylated to glucose – 6 – phosphate
108 . Which enzyme helps in the
conversion of glucose to glucose – 6 –
phosphate?
Answer : Glucokinase
109 . Which one act as phosphate
donor in the phosphorylation of glucose
to glucose – 6 – phosphate?
Answer : ATP molecule
110 . What ions are essential for
the conversion of glucose to glucose – 6
– phosphate?
Answer : Mg++
111 . What is the important
compound in glycolysis?
Answer : glucose – 6 –
phosphate
112 . What is uronic acid
pathway?
Answer : Glucose – 6 –
phosphate is converted to glucuronic acid , via, glucose – 1 – phosphate. The
pathway is called uronic acid pathway.
113 . Which enzyme catalyse the
conversion of glucose – 6 – phosphate to
fructose – 6 – phosphate
Answer :
Phosphohexoseisomerase
114 . What enzyme convert
fructose – 6 – phosphate to fructose –1- 6 – diphosphate
Answer : Phosphofructokinase
115 . Which enzyme split fructose
–1- 6 – diphosphate?
Answer : Aldolase
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