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WorksheetsBlood
Total questions: 20
Worksheet time: 40mins
Is blood a cell, a tissue or an organ?
a cell
a tissue
an organ
What are the components of blood?
red blood cell
white blood cells
platelets
plasma
all of these
Which component of blood is the arrow pointing to?
a red blood cell
a white blood cell
a platelet
plasma
What shape are red blood cells?
spherical
flat discs
biconcave discs
square discs
What is the function of red blood cells?
to help to defend against pathogens
to transport oxygen
to help blood to clot
to transport dissolved substances
Which component of blood is the arrow pointing to?
a red blood cell
a white blood cell
a platelet
plasma
What is the function of white blood cells?
to transport oxygen
to help to defend against pathogens
to transport dissolved substances
to help blood to clot
Which component of blood is the arrow pointing to?
a platelet
a white blood cell
a red blood cell
plasma
What is the function of platelets?
to transport oxygen
to transport dissolved substances
to help blood clot
to help defend against pathogens
Which component of blood is the arrow pointing to?
a red blood cell
a white blood cell
plasma
a platelet
Which of the following chemical substances are transported by plasma?
carbon dioxide
hormones
urea
the products from digestion
all of these chemical substances
How is carbon dioxide transported in the blood?
in plasma
in red blood cells
in platelets
in white blood cells
Which component of blood helps defend against pathogens?
red blood cells
white blood cells
plasma
platelets
What is the name of the red pigment in red blood cells, and which gas binds to it?
Select one pigment and one gas.
haemoglobin
melanin
oxygen
carbon dioxide
nitrogen
Which feature of red blood cells enables them to fit through narrow capillaries?
biconcave shape
lack of nucleus
small and flexible
Red blood cells don't have a nucleus. How does this increase their ability to carry oxygen?
It increases the surface area to for diffusion.
It decreases the surface area for diffusion.
It increases the space available for haemoglobin.
It decreases the space available for haemoglobin.
There are two kinds of white blood cell.
What is the role of phagocytes?
to engulf and destroy pathogens
to transport oxygen
to release antibodies against pathogens
There are two kinds of white blood cell.
What is the role of lymphocytes?
to engulf and destroy pathogens
to transport oxygen
to release antibodies against pathogens
The diagram shows gaseous exchange in the lungs. Which component of blood transports gas A?
plasma
white blood cells
red blood cells
platelets
The diagram shows gaseous exchange in the lungs. Which component of blood transports gas B?
plasma
white blood cells
red blood cells
platelets
