AS Biology: The Circulatory System Quiz

What type of circulatory system do humans have?

• Closed single circulatory system

• Open circulatory system

• Closed double circulatory system

• Open double circulatory system

What is the primary function of arteries?

• Store blood

• Exchange gases with tissues

• Carry blood away from the heart

• Carry blood towards the heart

Which blood vessel carries deoxygenated blood to the lungs?

• Aorta

• Pulmonary vein

• Pulmonary artery

• Vena cava

What is the main role of capillaries?

• Pump blood

• Facilitate gas exchange

• Store oxygen

• Transport blood at high pressure

What is the function of valves in veins?

• Store blood

• Prevent backflow of blood

• Facilitate gas exchange

• Increase blood pressure

What is the primary component of blood plasma?

• Proteins

• Red blood cells

• Water

• White blood cells

Which type of blood cell is responsible for oxygen transport?

• Neutrophils

• Lymphocytes

• Red blood cells

• Monocytes

What is the diameter range of capillaries?

• 0.4 - 2.5 cm

• 5 - 10 μm

• 7 μm - 1 mm

• 30 μm

What is the role of tissue fluid?

• Bath cells and facilitate exchange

• Facilitate nutrient absorption

• Transport oxygen

• Store waste products

What happens to fluid at the venous end of a capillary?

• More fluid is pushed out

• Fluid begins to flow back into the capillary

• Fluid remains constant

• Fluid is absorbed by tissues