Igcse Transport in Animals

Which substances are dissolved in human blood plasma?

• carbon dioxide, haemoglobin and glucose

• carbon dioxide, oxygen and haemoglobin

• glucose, hormones and urea

• oxygen, urea and starch

The diagrams show some components of the blood of a mammal.

Which component causes the blood to start clotting?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-3

The diagram shows the human heart and some of the blood vessels connected to it.

Before blood in W reaches Z it must

• gain glucose.

• give up heat to the skin.

• pass through capillaries.

• travel to the head.

Which blood vessel has a high carbon dioxide concentration, a low oxygen concentration and a

high blood pressure?

• aorta

• pulmonary artery

• pulmonary vein

• vena cava

The diagram shows a section through the heart.

Which part pumps blood to the aorta?

• A

• B

• C

• D

Where does haemoglobin become oxyhaemoglobin?

• heart

• kidney

• liver

• lungs

What is the correct sequence for blood being pumped from the heart to the lungs?

• left atrium → left ventricle → pulmonary artery

• left atrium → left ventricle → pulmonary vein

• right atrium → right ventricle → pulmonary artery

• right atrium → right ventricle → pulmonary vein

In which list do all three blood vessels carry oxygenated blood?

• aorta, pulmonary artery, renal artery

• aorta, pulmonary vein, renal artery

• vena cava, pulmonary artery, renal vein

• vena cava, pulmonary vein, renal vein

Which heart valves are open and which are closed when blood passes out of the right ventricle

towards the lungs?

• bicuspid (mitral) valve closed, tricuspid valve open

• bicuspid (mitral) valve open, semi-lunar valve closed

• tricuspid valve closed, semi-lunar valve open

• tricuspid valve open, bicuspid (mitral) valve open

The graph shows the effect of several minutes of vigorous (hard) exercise on heart rate.

Which letter on the graph is at a time when the person is doing this exercise?

• A

• B

• C

• D