1. The structural & functional unit of lungs is -
A. nephronB. neuronC. alveolusD. glomerulus
2. The duration of atrial diastole of cardiac cycle-
A. 0.1 secondB. 0.7 secondC. 0.5 secondD. 0.3 second
3. Which one is related with both aerobic & anaerobic respiration?
A. krebsB. lactic acid formationC. ethanol formationD. glycolysis
4. He hardly does his homework, _____?
A. does heB. doesn’t heC. is itD. isn’t it
5. Which one of the following is an example of isoelectronic system?
A. N2O, COB. CO, CN −C. CO2, N2D. CN −, N2O
6. How is the hybridization of carbon atoms in CH – CH = CH compound? 3 2
A. sp, sp2B. sp, sp3C. sp2, sp3D. sp, sp2, sp3 2 3 → sp