Take this Quiz: GCSE Biology: Heart, Blood and Circulation | Zestly

Question 1

Which chamber of the human heart is responsible for pumping oxygenated blood to the entire body, and why is its muscular wall significantly thicker than the others?

Accepted Answer

The left ventricle, because it must generate high pressure to pump blood throughout the entire body.

Question 2

Which of the following statements accurately describe the structural adaptations of arteries to their function?

Accepted Answer

They have thick, elastic walls to withstand high pressure.

Question 3

What is the primary function of platelets in the human blood?

Accepted Answer

To initiate the clotting process at a wound site.

Question 4

In the double circulatory system of humans, which vessel carries deoxygenated blood from the heart to the lungs?

Answer

Aorta

Answer

Vena cava

Answer

Pulmonary artery

Answer

Pulmonary vein

Question 5

Which of the following are considered advantages of using statins to treat coronary heart disease?

Answer

They reduce the levels of LDL cholesterol in the blood.

Answer

They can reduce the risk of strokes and heart attacks.

Answer

They provide a permanent mechanical solution to blocked arteries.

Answer

They eliminate the need for any lifestyle changes by the patient.