Punjab Public Service Commission — Complete MCQ Bank
PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.
Which membrane surrounds the lungs and reduces friction during breathing movements?
Which gas exchange membrane structure in the lungs maximizes surface area for efficient breathing?
Which soft tissue found inside bones is responsible for producing new blood cells?
Which flexible connective tissue cushions joints and is found in structures like the ear and nose?
Which chamber of the heart pumps oxygenated blood out to the rest of the body?
Which chamber of the heart receives deoxygenated blood from the body before sending it to the lungs?
Which tiny blood vessels allow the exchange of oxygen nutrients and waste between blood and body tissues?
Which blood vessels carry deoxygenated blood back to the heart from body tissues?
Which blood vessels carry oxygenated blood away from the heart to the rest of the body?
Which structure in the heart prevents the backward flow of blood between chambers?