Components of blood

Question 1

What is blood plasma?

Answer 1

A yellowish coloured liquid that transports nutrients , hormones and proteins to parts of the body that need it. Cells also deposit their waste into the plasma (Makes up 55% of the blood).

Question 2

What are the function of red blood Cells?

Answer 2

To pick up oxygen from the lungs and carry it to where it is need across the body

Question 3

Name the 3 adaptations of red blood cells

Answer 3

1) Concave- given a larger surface area for diffusion
2) Packed with Haemoglobin- that binds to oxygen
3) No nucleus- more room for haemoglobin

Question 4

What are white blood cells?

Answer 4

Contain no nucleus and are part of the bodies defence system against harmful microorganisms (bigger that red blood cells, but less of them)

Question 5

What are platelets?

Answer 5

Tiny blood cells, with no nucleus, that help form clots to stop bleeding areas of the body

Question 6

Name the 3 different ways white blood cells deal with harmful microorganisms

Answer 6

1) Form antibodies against microorganism (lymphocytes)
2) Form antitoxins against poison made by microorganisms
3) Engulf and digest invading bacteria and viruses (phagocytes)