Question: Fraction of CPK is an enzyme that is elevated in a myocardial infarct is____________________?
- 1. MM fraction
- 2. MB fraction
- 3. BB fraction
- 4. Both MM and BB fraction
Question: A material that speeds up a chemical reaction without chemically becoming involved is called_____________?
- 1. A solvent
- 2. A base
- 3. A catalyst
- 4. Thermoplastic
Question: Km of an enzyme is_____________?
- 1. Dissociation constant
- 2. The normal physiological substrate concentration
- 3. Substrate concentration at half maximal velocity
- 4. Numerically identical for all isozymes that catalyses a given reaction
Question: Acetyl Co-A acts as a substrate for all the enzymes except______________?
- 1. HMG-Co A synthase
- 2. Malic enzyme
- 3. Malonyl CoA synthetase
- 4. Fatty acid synthetase
Question: The enzyme that is specifically increased in obstructive jaundice is_____________?
- 1. Glutamate oxaloacetate transaminase
- 2. Glutamate pyruvate transaminase
- 3. Alkaline phosphaase
- 4. Acid phosphatase
Question: Elevated levels of serum glutamic oxaloacetic transaminase in indicative of______________?
- 1. Deficiency of glutamic acid
- 2. Deficiency of oxaloacetic acid
- 3. Liver disease
- 4. All of the above
Question: Muscle glycogen, which cannot contribute to blood glucose due to the absence of which enzymes ?
- 1. Phosphoglutamase
- 2. Branching enzyme
- 3. Debranching enzyme
- 4. Glucose-6-phosphotase
Question: Michaelis-Menten hypothesis states that_____________?
- 1. Rate of enzymatic reaction is independent of substrate concentration
- 2. Rate of non enzymatic reaction is proportional to substrate concentration
- 3. Km is the enzyme substrate complex association constant
- 4. Enzyme- substrate complex formation is essential in enzymatic reaction
Question: Coenzyme responsible for single carbon transfer is______________?
- 1. Acetyl co enzyme A
- 2. Biotin
- 3. THF4
- 4. Pyridoxine
Question: Enzyme + coenzyme constitutes_____________?
- 1. Apoenzyme
- 2. Proenzyme
- 3. Protoenzyme
- 4. Holoenzyme
