Heart O Level Biology Multiple Choice Questions with Answers – PDF Download

MCQ 1: In transportation of mammals, median septum:

1. allows exchange of blood between right and left atrium
2. allows exchange of blood between right and left ventricle
3. is a semi-permeable membrane
4. completely separates the right and left sides of the heart

MCQ 2: Back flow of blood from right ventricle to right atrium is prevented through:

1. semilunar valves
2. mitral valves
3. tricuspid valves
4. median septum

MCQ 3: Blood in pulmonary arteries is at a lower pressure than blood in aorta allowing:

1. tricuspid valve to shut
2. bicuspid valve to shut
3. gaseous exchange to effectively take place in lungs
4. semi lunar valves to prevent backflow of blood

MCQ 4: Semilunar valves are present at the bases of:

1. pulmonary artery only
2. aorta only
3. pulmonary veins
4. pulmonary artery and aorta

MCQ 5: Tricuspid valve is found between:

1. left atrium and right atrium
2. left atrium and right ventricle
3. right atrium and right ventricle
4. left atrium and left ventricle