Question: Which of the following is correct of the pyruvate dehydrogenase enzyme complex ?

• 1. It is present in cytoplasm
• 2. Catalyzes the conversion of pyruvate to oxaloacetate
• 3. Requires TPP as cofactor
• 4. Catalyzes a reversible reaction

Question: Dehydrogenase used as coenzymes all of the following, except________________?

• 1. FMN
• 2. FAD
• 3. NADP+
• 4. Ferro protoporphyrin

Question: Benzidine test is positive with the enzyme______________?

• 1. Cytochrome oxidase
• 2. Dehydrogenase
• 3. Hydrolase
• 4. Peroxidase

Question: Key glycolytic enzymes_____________?

• 1. Phosphofructokinase
• 2. Hexokinase
• 3. Pyruvate kinase
• 4. Glucose 1,6 diphosphatase

Question: Multiienzyme complex in human_______________?

• 1. Fatty acid synthetase
• 2. Malonyl CoA carboxylase
• 3. Carbomoyl Phosphate synthetase
• 4. Adenosine phospho ribosyl transferase

Question: Which of the following is NOT a characteristic feature of allosteric enzymes ?

• 1. They are multienzyme complex
• 2. Follow Michaelis-Menton Kinetics
• 3. Presence of Modulator site
• 4. Give sigmoid shaped curve

Question: A example of a preventive antioxidant is_______________?

• 1. Catalase
• 2. Tocopherol
• 3. Superoxide dismutase
• 4. Urate

Question: LDH has following number oflsoenzymes________________?

• 1. 5
• 2. 3
• 3. 11
• 4. 2

Question: One of the earliest symptoms of Vit. A deficiency is________________?

• 1. Nyctalopia
• 2. Xerophthalmia
• 3. Bitot’s spot
• 4. Keratomalacia

Question: The enzyme phosphofructo kinase-1 is strongly activated by_______________?

• 1. Cyclic AMP
• 2. Adenosine tri phosphate
• 3. Citrate
• 4. Fructose 2,6 bis phosphate