Blood Components and Functions

This video tutorial covers the components of blood, including plasma, red and white blood cells, and platelets, detailing their functions and roles in the body. It explains how plasma transports substances like glucose, carbon dioxide, and urea. Red blood cells are adapted for oxygen transport, while white blood cells are part of the immune system. Platelets aid in blood clotting. The video also discusses the medical uses of blood products and associated risks, such as blood type compatibility and infection. The tutorial concludes with a reminder of additional resources available for further study.

What is the primary function of blood plasma?

• To transport oxygen

• To transport dissolved substances

• To fight infections

• To help in blood clotting

Which of the following is NOT transported by blood plasma?

• Glucose

• Carbon dioxide

• Oxygen

• Urea

What molecule in red blood cells is responsible for carrying oxygen?

• Hemoglobin

• Plasma

• Antibodies

• Platelets

Why do red blood cells lack a nucleus?

• To prevent infections

• To increase their lifespan

• To allow more room for hemoglobin

• To enable faster movement

What is the shape of red blood cells called?

• Spherical

• Biconcave disk

• Flat disk

• Oval

What is the main role of white blood cells?

• Fighting infections

• Clotting blood

• Carrying nutrients

• Transporting oxygen

What is the function of platelets in the blood?

• Carrying nutrients

• Fighting infections

• Transporting oxygen

• Clotting blood

Why is it important to match blood types during a transfusion?

• To ensure compatibility and prevent rejection

• To prevent infection

• To reduce the cost of the procedure

• To increase the effectiveness of the transfusion

What is a potential risk of blood transfusions?

• Increased blood pressure

• Allergic reactions

• Infection transmission

• Dehydration

How is the risk of infection minimized in blood transfusions in the UK?

• By using antibiotics

• By boiling the blood

• By screening blood for infections

• By using only synthetic blood