Biochemistry Mcqs
Question: In the physiological system, nitric oxide is known to act through_______________?
- 1. Cyclic AMP
- 2. Calcium ions
- 3. Cyclic GMP
- 4. Prostacyclins
Question: True about denaturation of protein is all except______________?
- 1. Unfolding occurs
- 2. Disruption of secondary structure occurs
- 3. Sequence of amino acids remain the same
- 4. Biological activity is retained
Question: Within the RBC hypoxia stimulates glycolysis by which of the following regulating pathways ?
- 1. Hypoxia stimulates pyruvate dehydrogenase by increased, 2, 3DPG
- 2. Hypoxia inhibits hexokinase
- 3. Hypoxia stimulates release of all glycolytic enzymes from Band 3 on RBC membrane
- 4. Activation of the regulatory enzymes by high PH
Question: The abundant glycoprotein in the basement membrane and has binding domain for both ECM and cell-surface receptor is______________?
- 1. Laminin
- 2. Fibronectin
- 3. E – Cadherins
- 4. Tenascin
Question: Normal serum alkaline phosphatase level is_____________?
- 1. 100-400 Bodansky units
- 2. 1000-4000 Bodansky units
- 3. 0.1-0.4 Bodansky units
- 4. 1-4 Bodansky units
Question: The following are derived from cholesterol, EXCEPT_____________?
- 1. Bile acids
- 2. Steroid hormones
- 3. Vitamin D
- 4. Energy
Question: Enzyme regulating the conversion of ethanol to acetaldehyde________________?
- 1. Alcohol dehydrogenase
- 2. Acetaldehyde dehydrogenase
- 3. Catalase
- 4. Enolase
Question: The normal range of serum osmolality (in mosm/L) is_____________?
- 1. 280 to 295
- 2. 300 to 320
- 3. 350 to 375
- 4. 200 to 250
Question: The fuel value of fat is____________?
- 1. 4
- 2. 7
- 3. 9
- 4. 5
Question: Heme is converted to bilirubin mainly in_____________?
- 1. Kidney
- 2. Liver
- 3. Spleen
- 4. Bone marrow