Blood

Question 1

What 3 components are suspended in blood plasma?

Answer 1

Red blood cells
White blood cells
Platelets

Question 2

What are platelets responsible for and what don’t they have?

Answer 2

Triggering blood clotting at the site of wounds.
They don’t have a nucleus.

Question 3

What is the function of red blood cells?

Answer 3

To carry oxygen from the lungs to all body cells.

Question 4

How are red blood cells adapted for their function?

Answer 4

1. They have a bioconcave shape which gives them a large surface area for absorbing oxygen.
2. They don’t have a nucleus so they can carry more oxygen.
3. Have lots of haemoglobin.

Question 5

What is the function of white blood cells and what do they have?

Answer 5

To defend against infection. They have a nucleus.