IGCSE Biology - Transport in mammals

Front

What is the liquid portion of the blood that makes up 55% of total blood volume?

Back

Plasma

Front

Name the blood vessel leaving the left ventricle and carrying blood to the body.

Back

Aorta

Front

What is the function of platelets in the blood?

Back

To form clots (i.e. scabs) when you have cuts and grazes.

Front

Which chamber of the heart does blood returning from the body enter?

Back

Right atrium

Front

What is the function of red blood cells?

Back

To carry oxygen to the muscles.

Front

What is the role of white blood cells in the immune system?

Back

To produce antibodies and fight infections.

Front

What is the main function of the aorta?

Back

To carry oxygenated blood from the heart to the body.

Front

What is the role of hemoglobin in red blood cells?

Back

To bind and transport oxygen.

Front

What is the difference between arteries and veins?

Back

Arteries carry blood away from the heart, while veins carry blood to the heart.

Front

What is the function of the right ventricle?

Back

To pump deoxygenated blood to the lungs for oxygenation.