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Q.26 To solve the mystery of spoilage of wine, Pasteur observed yeast and bacteria in the fermented grape juice (wine). Through a series of experiments, he proved 1. yeast and […]

Q.25 Which of the following factors affects the affinity of hemoglobin for oxygen? 1. pH 2. Temperature 3. Binding of 2,3-bisphosphoglycerate 4. pH, temperature and binding of 2,3-bisphosphoglycerate Hemoglobin’s affinity […]

Q.24 Internal respiration occurs in 1. nose 2. lungs 3. heart 4. tissue throughout the body Internal respiration is the gas exchange process where oxygen diffuses from blood capillaries into […]

Q.23 At 50% saturation, each Hb molecule has ______ bound. one O2 molecule two O2 molecules three O2 molecules four O2 molecules Hemoglobin (Hb) binds oxygen cooperatively across its four […]

Q.22 AST / ALT ratio is decreased in 1. myocardial infarction 2. acute hepatocellular damage 3. damaged kidney 4. both damaged kidney and heart AST/ALT Ratio Decrease: Key Conditions and […]

Q.21 In hepatocellular disease 1. only conjugated bilirubin levels are increased 2. only unconjugated bilirubin levels are increased 3. both conjugated and unconjugated bilirubin levels are increased 4. conjugated bilirubin […]

Q.20 Glomerular filtration rate is determined by creatinine clearance test and inulin clearance test. Which of the following statements is true about GFR? 1. Inulin clearance gives the exact measurement […]

Q.19 In E. coli, pur repressor regulates the expression of more genes as compared to lac repressor because 1. pur repressor binds to DNA without corepressor 2. pur repressor is […]

Q.18 How many ATP molecules are produced for each molecule of FADH2 oxidized via the respiratory chain? 1.0.5 2.1 3.1.5 4.2 FADH2 oxidation in the respiratory chain yields a specific […]

Q.17 Oligomyein blocks the electron transport chain by 1. inhibiting the complex III 2. inhibiting ATP synthesis by preventing influx of protons through ATP synthase 3. inhibiting the complex IV […]