WorksheetsTransport in organisms
Total questions: 11
Worksheet time: 6mins
Choose 3 components that make up the circulatory system.
Blood
Vessels
Heart
Lungs
What is a vessel?
Something that can hold liquid.
Something that pushes liquid.
What is a lumen?
It is the hole or cavity inside the blood vessel.
It is the wall of the blood vessel.
Which blood vessel has a larger lumen?
Artery
Vein
Arteries mostly carry ...
Oxygen rich blood
Oxygen poor blood
The blood transports nutrients.
True
False
Do protists have circulation systems?
Yes
No
Protists do not require a circulation system because ...
Diffusion and movement of the cytoplasm is enough.
They do not use as much oxygen as multicellular organisms.
Protists do not need specialised organs like lungs and intestines because ...
Their surface area to volume ratio is high,
Their surface area to volume ratio is low,
Why are no cells very large?
Because large cells will have a lower surface area to volume ratio.
Because large cells will have a higher surface area to volume ratio.
The blood transports a waste product called urea.
True
False
