All of the following compounds are intermediates of TCA cycle except
(A) Maleate (B) Pyruvate (C) Oxaloacetate (D) Fumarate

Vitamin B2 is component of coenzyme: (A) Pyridoxal phosphate (B) TPP (C) NAD (D) FMN/FAD

The enzyme that converts glucose to glucose-6-phosphate is (A) Phosphatase (B) Hexokinase (C) Phosphorylase (D) Glucose synthetase

Malic enzyme convers malic acid, in the
presence of NADP+ to Pyruvic acid. This reaction is a/an (A) Decarboxylation (B) Decarboxylation and Dehydrogenation (C) Dehydrogenation (D) Oxidation

The requirement for metabolic fuels is
A. Higher after the main meals
B. Higher in the evening C. Higher in the morning D. Lower after the main meals E. Mostly constant throughout the day مد بغداد

A substrate for the enzyme aldolase is (A) galactose-6-phosphate (B) isocitric acid (C) Glucose-1-phosphate (D) Fructose 1, 6 diphosphate

39.Regarding the cellular compartment at which reactions of glycolysis occur
A. All are cytosolic
B. All are mitochondrial C. All are nuclear مد بغداد

Glucose is the only source of energy for (A) Myocardium (B) Kidneys
(C) Erythrocytes (D) Thrombocytes

The first pentose formed in HMP shunt is (A) Ribose-5-phosphate
(B) Ribulose-5-phosphate
(C) Xylose-5-phosphate (D)Xylulose-5-phosphate

HMP shunt (pentose phosphate pathway) is present in (A) Erythrocytes (B) Liver (C) Testes (D) All of these

End product of aerobic glycolysis is (A) Acetyl CoA (B) Lactate (C) Pyruvate

Glycolytic pathway is located in(A) Mitochondria (B) Cytosol (C) Microsomes

The sites for gluconeogenesis are (A) Liver and kidney X(B) Skin and pancreas (C) Lung and brain

pentose phosphate pathway protects erythrocytes against hemolysis by assisting the enzyme: (A) Superoxide dismutase (B) Catalase (C) Glutathionic peroxidase

The transketolase enzyme in the pentose phosphate pathway requires the B vitamin. (A) Pantothenic acid (B) Thiamin
(C) Riboflavin

Phosphofructokinase key enzyme in glycolysis is inhibited by
(A) Citrate and ATP
B.. Atp C.. amb

enzyme of the glycolic pathway, sensitive to inhibiton by fluoride ions is
(A) Hexokinase (B) Aldolase (C) Enolase

Which one of the following metabolites is not directly produced in the hexose monophosphate pathway?
(A) Fructose-6-phosphate (B) Dihydroxy acetone phosphate (C) CO2

Gluconeogenesis is decreased by (A) Glucagon (B) Epinephrine (C) Glucocorticoids (D) Insulin

Cori’s cycle transfers (A) Glucose from muscles to liver (B) Lactate from muscles to liver (C) Lactate from liver to muscles