Blood cells

Blood cells

Multiple Choice

What is found in the bottom layer of this blood sample (after it has been centrifuged)?

• White blood cells

• red blood cells

• platelets

• plasma

Multiple Choice

What is the function of red blood cells?

• Fight infection

• helps blood to clot

• carries oxygen and carbon dioxide

Multiple Choice

What % of the blood is red blood cells?

• 10

• 45

• 65

• 90

Multiple Choice

What is found in the top layer of this blood sample

• White blood cells

• red blood cells

• platelets

• plasma

Multiple Choice

What % of the blood is plasma

• 10

• 45

• 55

• 90

Multiple Choice

How many blood cells are in 1 drop of blood?

• 4 million

• 5 million

• 2 million

• 1 million

Multiple Choice

How long do red blood cells last?

• 120 days

• 100 days

• 10 days

• 1 month

Multiple Choice

How many red blood cells are made every second

• 1 million

• 5 million

• 2.5 million

• 120 million

Multiple Choice

What is the name of the protein in blood that enbles the blood to carry oxygen

• Haemaglobin

• goblin

• Haemaphilia

• Chlorophyll

Multiple Select

Why does blood clot?

• To prevent pathogens from getting in

• So we don't bleed to death

• To create new blood cells

• to get rid of old blood cells

Multiple Select

Why do platelets start to form blood clots?

• To make red blood cells

• They are exposed to the chemicals in the air

• They are exposed to the collagen

Multiple Choice

What % of the blood is white blood cells?

• 80 %

• 30 %

• 50 %

• 1 %

Multiple Choice

Where are phagocytes made? 

• lymph nodes

• bone marrow

• blood vessels

• heart

Multiple Choice

Where are lymphocytes made? 

• lymph nodes

• bone marrow

• blood vessels

• heart

Multiple Choice

What type of blood cell eats bacteria/pathogens

• phagocytes

• lymphocytes

• red blood cells

• platelets

Multiple Choice

What type of blood cell produces antibodies

• phagocytes

• lymphocytes

• red blood cells

• platelets

Multiple Choice

What type of blood cell carries oxygen

• phagocytes

• lymphocytes

• red blood cells

• platelets

Multiple Choice

What type of blood cell helps clot the blood

• phagocytes

• lymphocytes

• red blood cells

• platelets