Answer : Condensation, dehydrogenation and phosphorylation
122 . What is the first steps in the conversion of glyceraldehyde -3 - phosphate to 1,3-diphosphoglyceric acid ?
Answer : Condensation reaction is tn,the aldehyde group of glyceraldehyde -3 - phosphate condenses with the SH group of the enzyme glutathione to form condensation product.
123 . What is the net gain of ATP molecule during glycolysis?
Answer : Eight
124 . Which one inhibit Enolase ?
Answer : Fluoride
125 . What are the three irreversible reactions in glycolysis?
Answer : 1.Glucose + ATP _______________ Glucose – 6 – phosphate + ADP
2.Fructose – 6 – phosphate + ATP ____ Fructose –1- 6 – diphosphate + ADP
3.Phosphoenolpyruvate + ADP __________ Enolpyruvate +ADP
126 . In glycolysis which enzyme convert 2- phosphoglycerate to phosphoenolpyruvate ?
Answer : Enolase
127 . How many molecules of glyceraldehyde -3 - phosphate is obtained when one glucose molecule is metabolized in glycolysis?
Answer : Two
128 . Glycogenesis begins with ___________
Answer : Glucose – 6 – phosphate
129 . Which ions are essential for the reversible conversion of glucose – 6 – phosphate into glucose – 1 – phosphate ?
Answer : Mg ++
130 . Which enzyme catalyse the conversion of glucose – 1 – phosphate to uridine diphosphate glucose (UDPG ) ?
Answer : UDPG pyrophosphorylase
131 . Which one act as the source of glucose units for the synthesis of glycogen in glycogenesis?
Answer : UDPG
132 . In which region glucosidic linkage link between two glucose molecule in glycogenesis?
Answer : Between first and fourth carbon atom of adjacent glucose molecules.
133 . What is the other name for gluconeogenesis?
Answer : Neoglucogenesis
135 . Name the enzyme helps in the phosphorylation of UDP to UTP.
Answer : Nucleoside diphosphate kinase
136 . In glycogenesis two adjacent amylase chains are connected by____________
Answer : Branching enzyme
137 . Branching enzyme connect two adjacent amylase between ____________
Answer : First and sixth carbon atom
138 . What is the other name for glycogen synthetase?
Answer : Glucosyl transferase
139 . In which region glycogen synthetase or glucosyl transferase enzyme is present?
Answer : Liver and muscle
140 . What is the active form of the enzyme glycogen synthetase or glucosyl transferase?
Answer : Synthase 1
141 . What is the inactive form of the enzyme glycogen synthetase or glucosyl transferase?
Answer : Synthase D
142 . Which enzyme convert the inactive synthase D to active synthase 1?
Answer : Synthase phosphatase
143 . Synthase 1 is converted into synthase D by __________________
Answer : Phosphorylation
144 . Which enzyme catalyse the conversion of synthase 1 to synthase D?
Answer :Glycogen synthase
145 . What are the two enzymes which convert glycogen to glucose – 1 – phosphate?
Answer : Phosphorylase, debranching enzyme
146 . Which enzyme act on 1-4- glucosidic linkage of glycogen molecule in glycogenolysis?
Answer : Phosphorylase
147 . split the glycogen in glycogenolysis?
Answer : 1-6 linkage
148 . In glycogeno In which region debranching enzyme lysis glucose – 6 – phosphate is formed from_______________
Answer : Glucose – 1 – phosphate
149 . Which one is converted into glucose in glycogenolysis?
Answer :Glucose – 6 – phosphate
150 . In which region the enzyme glucose – 6 – phosphatase is present?
Answer : Liver and kidney
0 comments:
Post a Comment