Blood

Question 1

What is the function of red blood cells?

Answer 1

carry oxygen from the lungs to all cells in the body.

Question 2

How does the structure of a red blood cell help it with its function?

Answer 2

biconcave disc shape gives a larger surface area for absorbing oxygen, has no nucleus to give more space to carry oxygen.

Question 3

How is a white blood cell adapted to its function?

Answer 3

can change shape to engulf foreign microorganisms (phagocytosis), produce antibodies that fight pathogens, produce antitoxins to neutralise toxins produced by pathogens.

Question 4

How are platelets adapted to their function?

Answer 4

help the blood to clot at the wound to prevent excessive blood loss and stop pathogens from entering.

Question 5

Plasma?

Answer 5

a pale yellow liquid that carries everything in the blood.

Question 6

What does plasma carry?

Answer 6

red and white blood cells, platelets, glucose, and amino acids, carbon dioxide, urea, hormones, proteins, antibodies, and antitoxins.