IGCSE Transport in animals

Which substances are dissolved in human blood plasma?

• A

• B

• C

• D

Which chamber of the heart has the thickest muscle wall?

• A

• B

• C

• D

Before blood in W reaches Z it must

• A

• B

• C

• D

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

• A

• B

• C

• D

Which part pumps blood to the aorta?

• A

• B

• C

• D

Which statement is correct for most veins in the human body?

• A

• B

• C

• D

Which component causes the blood to start clotting?

• A

• B

• C

• D

What is the correct order for the stages after stage P?

• A

• B

• C

• D

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

• A

• B

• C

• D

Why is the circulatory system of mammals described as a double circulation?

• A

• B

• C

• D