Blood

Question 1

What is blood made of

Answer 1

55% plasma
45% red blood cells

Question 2

Function of plasma

Answer 2

To transport nutrients, waste products and hormones via blood vessels

Question 3

Function of red blood cells

Answer 3

Transport oxygen from the lungs to the body’s cells, where is used in respiration

Question 4

Adaptation of blood cells

Answer 4

Bioconcave snape enabling a large surface area to absorb and release oxygen,

absence of nucleus also enables more room to carry oxygen.

Consists haemoglobin - every haemoglobin carries 4 oxygen molecules which it binds to

Question 5

Function of platelets

Answer 5

Help clot blood, preventing blood cells from escaping

Question 6

Adaptation of platelets

Answer 6

Smaller than red and white blood cells,

no nucleus,

they have cell fragments that help form scabs,

Mesh Protein called fibrin holds the platelets together in a clot

Question 7

Function of white blood cells

Answer 7

Protect the body from desease by englulfing invading microbes that can cause infection called phagocytoncis

Question 8

Adaptation of white blood cells

Answer 8

Can squeeze through walls of capillaries

Question 9

What are platelets

Answer 9

Platelets are small cell fragments that play a crucial role in blood clotting. They help form clots to prevent excessive bleeding when blood vessels are injured.