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CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 6
See all quizzes of CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 6 here:
1 UDPG is oxidized to UDP glucuronic acid
by UDP dehydrogenase in presence of
(A) FAD+ (B) NAD+
(C) NADP+ (D) ADP+
2. Galactose is phosphorylated by galactokinase
to form
(A) Galactose-6-phosphate
(B) Galactose-1, 6 diphosphate
(C) Galactose-1-phosphate
(D) All of these
3. The conversion of alanine to glucose is
termed
(A) Glycolysis
(B) Oxidative decarboxylation
(C) Specific dynamic action
(D) Gluconeogenesis
4. The blood sugar raising action of the
hormones of suprarenal cortex is due to
(A) Gluconeogenesis
(B) Glycogenolysis
(C) Glucagon-like activity
(D) Due to inhibition of glomerular filtration
5. Under anaerobic conditions the glycolysis
one mole of glucose yields __ moles of ATP.
(A) One (B) Two
(C) Eight (D) Thirty
6. Which of the following metabolite integrates
glucose and fatty acid metabolism?
(A) Acetyl CoA (B) Pyruvate
(C) Citrate (D) Lactate
7. Cerebrosides consist of mostly of this
sugar:
(A) Glucose (B) Fructose
(C) Galactose (D) Arabinose
8. Glucose will be converted into fatty acids
if the diet has excess of
(A) Carbohydrates (B) Proteins
(C) Fat (D) Vitamins
9. The purple ring of Molisch reaction is due
to
(A) Furfural
(B) Furfural + α Napthol
(C) °C Napthol
(D) Furfurol + H2SO4 + α -Naphthol
10. One of the following enzymes does not
change glycogen synthase a to b.
(A) Glycogen synthase kinases 3, 4, 5
(B) Ca2+ calmodulin phosphorylase kinase
(C) Ca2+ calmodulin dependent protein kinase
(D) Glycogen phosphorylase a
11. In EM pathway -2-phosphoglycerate is
converted to
(A) Phospho enol pyruvate
(B) Enol pyruvate
(C) Di hydroxy acetone phosphate (DHAP)
(D) 1,3 bisphosphoglycerate
12. An aneplerotic reaction which sustains the
availability of oxaloacetate is the carboxylation
of
(A) Glutamate (B) Pyruvate
(C) Citrate (D) Succinate
13. Specific test for ketohexoses:
(A) Seliwanoff’s test (B) Osazone test
(C) Molisch test (D) None of these
14. Two important byproducts of HMP shunt
are
(A) NADH and pentose sugars
(B) NADPH and pentose sugars
(C) Pentose sugars and 4 membered sugars
(D) Pentose sugars and sedoheptulose
15. Pyruvate dehydrogenase complex and
α-ketoglutarate dehydrogenase complex
require the following for their oxidative
decarboxylation:
(A) COASH and Lipoic acid
(B) NAD+ and FAD
(C) COASH and TPP
(D) COASH, TPP,NAD+,FAD, Lipoate
16. The four membered aldose sugar
phosphate formed in HMP shunt pathway
is
(A) Xylulose P (B) Erythrulose P
(C) Erythrose P (D) Ribulose P
17. Cane sugar (Sucrose) injected into blood
is
(A) changed to fructose
(B) changed to glucose
(C) undergoes no significant change
(D) changed to glucose and fructose
18. Pentose production is increased in
(A) HMP shunt
(B) Uromic acid pathway
(C) EM pathway
(D) TCA cycle
19. Conversion of Alanine to carbohydrate is
termed:
(A) Glycogenesis (B) Gluconeogenesis
(C) Glycogenolysis (D) Photosynthesis
20. The following is an enzyme required for
glycolysis:
(A) Pyruvate kinase
(B) Pyruvate carboxylase
(C) Glucose-6-phosphatase
(D) Glycerokinase
21. Our body can get pentoses from
(A) Glycolytic pathway
(B) Uromic acid pathway
(C) TCA cycle
(D) HMP shunt
22. Conversion of glucose to glucose-6-
phosphate in human liver is by
(A) Hexokinase only
(B) Glucokinase only
(C) Hexokinase and glucokinase
(D) Glucose-6-phosphate dehydrogenase
23. The following is an enzyme required for
glycolysis:
(A) Pyruvate kinase
(B) Pyruvate carboxylase
(C) Glucose-6-phosphatose
(D) Glycerokinase
24. The normal glucose tolerance curve
reaches peak is
(A) 15 min (B) 1 hr
(C) 2 hrs (D) 2 ½ hrs
25. Oxidative decarboxylation of pyruvate
requires
(A) NADP+
(B) Cytichromes
(C) pyridoxal phosphate
(D) COASH
26. Glucose tolerance is increased in
(A) Diabetes mellitus (B) Adrenalectomy
(C) Acromegaly (D) Thyrotoxicosis
27. Glucose tolerance is decreased in
(A) Diabetes mellitus (B) Hypopituitarisme
(C) Addison’s disease (D) Hypothyroidism
28. During glycolysis, Fructose 1, 6 diphosphate
is decomposed by the enzyme:
(A) Enolase a
(B) Fructokinase
(C) Aldolase
(D) Diphosphofructophosphatose
29. The following enzyme is required for the
hexose monophosphate shunt pathway:
(A) Glucose-6-phosphatase
(B) Phosphorylase
(C) Aldolase
(D) Glucose-6-phosphate dehydrogenase
30 Dehydrogenase enzymes of the hexose
monophosphate shunt are
(A) NAD+ specific (B) NADP+ specific
(C) FAD specific (D) FMN specific
