Cardiovascular System- Unit 4

Question 1

What are the four main parts of the blood?

Answer 1

Plasma, platelets, red blood cells and white blood cells

Question 2

What is the structure and function of a plasma?

Answer 2

A clear yellowish liquid
Provides transport for blood

Question 3

What is the structure and function of platelets?

Answer 3

Produced in the bone marrow and fragments of other cells
Form blood clots to slow or stop bleeding

Question 4

What is the structure and function of the red blood cells?

Answer 4

Made in the bone marrow and is red because of haemoglobin
Transport oxygen and carbon dioxide

Question 5

What is the structure and function of a white blood cell?

Answer 5

Part of the immune system
Fight against infections and identify abnormal material

Question 6

What is a T cell?

Answer 6

They release chemical signals to trigger a full immune response, they can also bind to cell which are infected and cause a apoptosis ( which is a triggering a ‘self destruct’

Question 7

What is a b cell?

Answer 7

Produce antibodies which lock onto specific chemicals (antigens) in walls of bacteria and immobilising them to make them a trigger to destroy