Blood

Question 1

What are the 4 parts of blood?

Answer 1

⦁ White blood cells
⦁ Plasma
⦁ Red blood cells
⦁ Platelets

Question 2

What are the 3 functions of plasma?

Answer 2

⦁ Transports soluble digestion products such as glucose from the small intestine to other organs
⦁ Transports CO2 from the organs to the lungs to be breathed out
⦁ Transports the wase product urea from the liver to the kidneys

Question 3

What is the function of red blood cells?

Answer 3

⦁ Transports oxygen from the lungs to the body cells

Question 4

What are 3 adaptations of red blood cells?

Answer 4

⦁ They contain haemoglobin which allows them to carry blood
⦁ They have no nucleus which means they have more room for haemoglobin
⦁ They have a dimpled shape to give them a greater surface area so oxygen cn diffuse in and out of them faster

Question 5

What is the function of white blood cells?

Answer 5

⦁ For part of the immune system by making anitbodies

Question 6

What is an adaptation of white blood cells?

Answer 6

⦁ They contain a nucleus which contains DNA which give them instructions to do their job

Question 7

What is the function of platelets

Answer 7

⦁ Tiny fragments of cells which help clot blood

Question 8

How can donated blood be used?

Answer 8

⦁ To replace blood loss
⦁ People are given extracted platelets
⦁ Proteins are extracted from blood

Question 9

Factors of a blood transfusion?

Answer 9

⦁ Blood type must be the same between donor and patient
⦁ Some diseases can be in blood