Composition of Blood

Question 1

Red Blood Cells

Answer 1

• Carry oxygen to all living tissue
• Contain haemogoblin
• Round, flattened disks which gives them a large surface area to allow them to flow easily within plasma

Question 2

Plasma

Answer 2

• Straw coloured liquid in which all blood cells are suspended
• Contains sodium, potassium, carbon dioxide

Question 3

White Blood Cells

Answer 3

• Components of blood that protect the body from infections
• They identify, destroy and remove from pathogens such as bacteria and viruses from the body
• Originate from bone marrow

Question 4

Platelets

Answer 4

• Disc shaped cell fragments produced in bone marrow
• Primary function is clotting to prevent blood loss, sticking to the damaged area to form a temporary plug to seal the break