1) Cardiac Output = Heart Rate x _____________ a) Stroke Volume b) Tidal Volume c) Blood Pressure d) Systolic Volume 2) Haemoglobin is a quaternary protein because.... a) It has 4 haem groups b) It has more than one polypeptide c) It can bind 4 oxygen molecules d) It is contains ionic, disulfide and hydrogen bonds 3) What effect does high CO2 conc have on Hb oxygen dissociation curve? a) Shifts to the right b) Shifts to the left c) No effect 4) Which sequence is correct? a) Pulmonary artery > Lungs > Pulmonary vein > Left ventricle b) Pulmonary vein > Right atrium > Right ventricle > Aorta c) Vena cava > Right atrium > Semi-lunar valve > Right ventricle d) Pulmonary vein > Right atrium > Right ventricle > Pulmonary artery 5) In Hb, binding of the first oxygen makes the binding of further oxygens easier. This is called a) Positive cooperativity b) Complementary binding c) Affinity d) Positive adaptability 6) Which valve will be open if the pressure in the left ventricle is higher than the aorta? a) Left atrioventricular valve b) Right atrioventricular valve c) Right semi-lunar valve d) Left semi-lunar valve 7) Which is the odd one out? a) Pulmonary artery b) Vena cava c) Renal vein d) Pulmonary vein 8) Which spelling is correct? a) Coronary arteries b) Cronorary arteries c) Cornery ateries d) Coronarary arteries 9) Which is not an adaptation of arterioles? a) Thin wall for short diffusion distance b) Thick layer of muscle to contract and control blood flow c) Elastic tissue to maintain blood pressure 10) In tissue fluid formation, what causes water to leave the capillary? a) High hydrostatic pressure caused by contraction of left ventricle b) Water potential gradient c) Thin walls providing short diffusion distance d) Osmotic pressure exceeds hydrostatic pressure 11) Excess tissue fluid is drained when ____________ enters lymphatic system a) Lymph b) Plasma c) Fluid d) Water 12) If the oxygen dissociation curve is shifted to the left, this is an advantage because... a) Oxygen will load more readily b) Oxygen will unload more readily c) Oxyegn will unload less readily d) Oxygen will load less readily

A Level Heart Quiz

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