WorksheetsiGCSE Biology 2h: Heart
Total questions: 20
Worksheet time: 10mins
When are the semilunar valves open?
During ventricular relaxation
During atrial contraction
During ventricular contraction
During atrial relaxation
Where are the semi lunar valves located?
Between the atria and ventricles
Between the atria, vena cava and pulmonary vein
Between the ventricles, pulmonary artery and aorta
Between the ventricles and atria
When are the AV valves closed?
During ventricular contraction
During atrial contraction
During ventricular relaxation
During atrial and ventricular relaxation
What is the function of the ventricles in the heart?
To collect blood from the veins
To pump blood out of the heart
To relax the atria
To pump blood to the atria
Where does the blood flow from the right ventricle?
To the lungs
To the pulmonary artery
To the left atrium
To the aorta
Which artery carries oxygenated blood away from the left ventricle?
Vena cava
Pulmonary vein
Aorta
Pulmonary artery
How many chambers are there in the heart?
2
3
4
6
Which system takes dexoygenated blood from the heart to the lungs and back?
Pulmonary system
Systemic system
Coronary system
Which blood vessel brings deoxygenated blood back to the heart
Pulmonary vein
Vena cava
Aorta
Pulmonary artery
What is the function of the heart valves?
To allow blood to flow in both directions
To allow blood to flow in one direction only
To control the rate of blood flow
To increase heart pressure
Which blood vessel provides oxygenated blood to the heart muscle?
Renal artery
Pulmonary artery
Aorta
Coronary artery
A blockage in the coronary artery can lead to:
Stroke
Anaemia
Deep vein thrombosis
Heart attack
A heart attack is when:
Oxygen supply is limited to the right atrium
Carbon dioxide supply is limited to the left atrium
Oxygen supply is limited to the heart muscle
Carbon dioxide supply is limited to the heart muscle
Reducing oxygen supply to the heart muscle causes:
Decreased aerobic, increased anaerobic respiration
Decreased anaerobic, increased aerobic respiration
No change in aerobic, increased anaerobic respiration
Decreased aerobic, no change in anaerobic respiration
What is the main factor that determines whether a valve will open or close?
The structure of the valve
The contraction of the heart muscle
The difference in blood pressure on either side of the valve
The position of the valve
Which blood vessel transports oxygenated blood from the lungs to heart?
Vena cava
Aorta
Pulmonary vein
Pulmonary artery
Which chamber does the pulmonary artery empty into?
Right atrium
Left atrium
Right ventricle
Left ventricle
Which side of the heart generates the greatest pressure?
Right
Left
Both
How many pairs of valves are there in the heart?
2
3
4
6
What tissue divides the two sides of the heart?
Sacrum
Sinovium
Serum
Septum
