IGCSE O Level Biology MCQs – Practice Test for Exam Prep

Mode of action of heart Multiple Choice Questions with Answers – PDF Download

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Free Mode of action of heart MCQ App Download: ""lub" sound is produced after the"; MCQ with answers: ventricles are fully contracted, ventricles start to relax, bicuspid and tricuspid valves suddenly close, and semilunar valves are closed. Practice Mode of action of heart Quiz Questions, download Apple Book (Free Chapter) to enhance educational development.

Mode of action of heart MCQs PDF Download – Prep Test

MCQ 1: The "lub" sound is produced after the:

ventricles are fully contracted
ventricles start to relax
bicuspid and tricuspid valves suddenly close
semilunar valves are closed

MCQ 2: In the cardiac system, systole means:

a "lub" sound
ventricular relaxation
closure of semilunar valves
a "dub" sound

MCQ 3: Left atrium receives blood from the:

pulmonary veins
two vena cava
right ventricle
left ventricle

MCQ 4: Diastole in cardiac system means:

"lub" sound
ventricular contraction
ventricular relaxation
"dub" sound

MCQ 5: Average normal heart beat of an adult is:

depends on exact age
depends on gender of adult
depends on the weight of adult
is approx. 72 times per minute

IGCSE O Level Biology MCQs App & e-Book – Mode of action of heart Practice Tests

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