Heart structure and function iGCSE

1.

Multiple Choice

30 sec

1 pt

Which diagram shows the human double circulatory system?

A

B

C

D

2.

Multiple Choice

30 sec

1 pt

How often must a blood cell in the renal artery pass through the heart before it again reaches the renal artery?

once

twice

three times

four times

3.

Multiple Choice

30 sec

1 pt

The diagram shows a double circulatory system. Which vessels carry oxygenated blood?

1 and 2

1 and 4

2 and 3

2 and 4

4.

Multiple Choice

30 sec

1 pt

The diagram shows the circulatory system of a mammal.

What describes the blood in vessels X and Y?

X: deoxygenated

Y: deoxygenated

X: deoxygenated

Y:oxygenated

X:oxygenated

Y: deoxygenated

X: oxygenated

Y: oxygenated

5.

Multiple Choice

30 sec

1 pt

Which chamber of the heart has the most muscular wall?

left atrium

left ventricle

right atrium

right ventricle

6.

Multiple Choice

30 sec

1 pt

The diagram shows a cross-section through a human blood vessel.

Which type of blood vessel does the diagram show?

an artery

a capillary

a vein

a ventricle

7.

Multiple Choice

30 sec

1 pt

What happens when the left ventricle contracts?

atrioventricular valves: closed

semilunar valves: closed

atrioventricular valves: closed

semilunar valves: open

atrioventricular valves: open

semilunar valves: closed

atrioventricular valves: open

semilunar valves: open

8.

Multiple Choice

30 sec

1 pt

The diagram shows the directions of blood flow through a heart.

Which chamber of the heart receives blood directly from the lungs?

A

B

C

D

9.

Multiple Choice

30 sec

1 pt

What is structure B?

Left atrium

Right atrium

Left ventricle

Right ventricle

10.

Multiple Choice

30 sec

1 pt

What is structure D?

Left atrium

Right atrium

Left ventricle

Right ventricle

11.

Fill in the Blank

30 sec

1 pt

Which letter points to the aorta?

12.

Fill in the Blank

30 sec

1 pt

What structure separates the left and right sides of the heart?

13.

Fill in the Blank

30 sec

1 pt

What does letter J point to?

14.

Multiple Choice

30 sec

1 pt

Which letter points to a semilunar valve?

K

E

J

M

15.

Multiple Select

30 sec

1 pt

Select the true statements

The septum prevents deoxygenated and oxygenated blood from mixing

The right side of the heart pumps blood to the body

The vena cavae bring deoxygenated blood to the heart

The aorta is a vein

16.

Multiple Choice

30 sec

1 pt

Which takes deoxygenated blood to the lungs?

Pulmonary artery

Pulmonary vein

Vena cavae

Aorta

17.

Multiple Select

30 sec

1 pt

Which carry oxygenated blood?

Pulmonary vein

Aorta

Vena cavae

Pulmonary artery

18.

Multiple Choice

45 sec

1 pt

What happens when the atria contract?

atrioventricular valves: closed

semilunar valves: closed

atrioventricular valves: closed

semilunar valves: open

atrioventricular valves: open

semilunar valves: closed

atrioventricular valves: open

semilunar valves: open

19.

Multiple Select

30 sec

1 pt

Check all the substances you may find in blood plasma

Glucose

Heat

Glycogen

Hormones

Answer explanation

Heat is NOT a substance

20.

Multiple Select

30 sec

1 pt

What cell types are visible in this micrograph?

Lymphocytes

Phagocytes

Platelets

Red blood cells

Answer explanation

Note the large, round, single-lobed nucleus

21.

Multiple Choice

30 sec

1 pt

What is NOT true about red blood cells?

Contain many mitochondria

Contain the protein haemoglobin

Have a biconcave shape

No nucleus

22.

Fill in the Blank

30 sec

1 pt

Name the blood cells that engulf and destroy pathogens

23.

Multiple Choice

30 sec

1 pt

The P wave stimulates:

Ventricular systole

Ventricular diastole

Atrial systole

Atrial diastole

24.

Fill in the Blank

45 sec

1 pt

What is the heart rate of a person if their cardiac cycles are 0.5 seconds long? Just write the number

25.

Multiple Select

45 sec

1 pt

Which are involved in blood clotting?

Platelets

Fibrinogen

Red blood cells

Phagocytes

Answer explanation

Phagocytes will work after the clot is formed but are not directly involved in forming them

26.

Multiple Choice

30 sec

1 pt

What is the name of the soluble substance in plasma that will be changed into an insoluble form to make a mesh to stop bleeding?

Fibrin

Fibrinogen

Platelets

Lymphocytes

27.

Multiple Select

30 sec

1 pt

Which are always involved in creating active immunity?

Memory lymphocyte cells

Antibodies

Antigens

Pathogens

Answer explanation

Only the antigen of the pathogen is required

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