Unit 4 definitions - The Respiratory and Circulatory System

What is the function of plasma in the blood?

• It transports oxygen.

• It is involved in clotting.

• It transports carbon dioxide, urea, digested food, hormones, and heat energy.

• It carries blood at low pressure back to the heart.

Which blood component is responsible for clotting?

• Plasma

• Platelets

• Red blood cells

• White blood cells

What is the role of the pulmonary artery?

• It carries oxygenated blood to the heart.

• It takes deoxygenated blood away from the heart to the lungs.

• It supplies blood to the kidneys.

• It absorbs water and mineral ions from the soil.

What is the function of red blood cells?

• They transport carbon dioxide.

• They transport oxygen.

• They are involved in clotting.

• They carry blood at low pressure back to the heart.

What is the process of translocation?

• Movement of water through xylem.

• Movement of sugars through the phloem tissue from sources to sinks.

• Water loss from plant leaves.

• Introduction of dead pathogens to stimulate antibody production.

What is the purpose of vaccination?

• To transport oxygen in the blood.

• To introduce small quantities of dead or inactive forms of a pathogen to stimulate antibody production.

• To absorb water and mineral ions from the soil.

• To carry blood at low pressure back to the heart.

What is the main function of the vena cava?

• To pump blood into the arteries

• To take deoxygenated blood back to the heart

• To transport oxygenated blood to the body

• To produce antibodies and antitoxins

Which chambers of the heart receive blood from the atria and expel it into the arteries?

• Atria

• Ventricles

• Vena cava

• Aorta

What is the role of white blood cells?

• To transport oxygen in the blood

• To carry blood at high pressure

• To protect the body from pathogens

• To increase heart rate

What is the function of xylem in plants?

• To transport oxygen in the blood

• To transport water and minerals from roots to leaves

• To increase heart rate

• To carry blood at high pressure