Give 2 adaptations of red blood cells for carrying oxygen
They contain haemoglobin
They DON'T have a nucleus (more room for haemoglobin)
They are BIconcave (larger surface area to absorb oxygen)
20
Name the two types of white blood cells that are involved in the immune response
Phagocytes and Lymphocytes
20
Name the chemical markers on all cells that your immune system uses to identify if a cell is one of yours or a foreign cell
Antigens
15
Which type of white blood cell can surround, engulf and digest pathogens with foreign antigens on their surface?
Phagocytes
15
What chemicals do lymphocytes make to destroy pathogens & make them stick together?
Antibodies
15
What is the name of the lymphocytes that stay in your blood stream once you have encountered a pathogen an mean you are immune to it?
Memory cells
15
What is found in a vaccination?
A DEAD or WEAKENED pathogen
15
If you have been vaccinated or have encountered a pathogen before, then you are immune because you produce antibodies __________ and in __________ amounts. What 2 words complete this?
Faster
Larger
20
Name the 3 types of blood vessels in your body
Arteries, Capillaries & Veins
20
Which type of blood vessel carries high pressure blood away from your heart?