GCSE Biology - What Is Blood Made of? / What Does Blood Do? #25

The video tutorial explores the components of blood, including red blood cells, white blood cells, platelets, and plasma. It explains the functions of each component, such as oxygen transport by red blood cells, immune defense by white blood cells, clotting by platelets, and nutrient transport by plasma. The video also discusses blood replacement methods like artificial blood and transfusions, highlighting their uses and limitations.

What is the primary function of red blood cells?

• To form blood clots

• To carry oxygen to body tissues

• To fight infections

• To produce antibodies

Which of the following is NOT a function of white blood cells?

• Engulfing microorganisms

• Producing antibodies

• Carrying oxygen

• Neutralizing toxins

What is the main role of platelets in the blood?

• Clotting to prevent blood loss

• Carrying oxygen

• Producing hormones

• Transporting nutrients

What does plasma primarily do in the blood?

• Carries cells and nutrients

• Produces red blood cells

• Forms blood clots

• Destroys pathogens

What is a limitation of artificial blood?

• It cannot carry oxygen

• It causes infections

• It is too expensive

• It clots too quickly