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Why is diffusion insufficient to meet the oxygen requirement for multicellular organisms like human?
Wiki User
∙ 12y ago
In single-celled organisms the entire surface of the organisms is in contact with the environments for the diffusion of substances. In multi-cellular organisms all the cells may not be in direct contact with the surrounding environment. So simple diffusion will not meet the requirements of all the cells.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoMulticellular organisms such as humans possess complex body designs. They have specialised cells and tissues for performing various necessary functions of the body such as intake of food and oxygen. Unlike unicellular organisms, multicellular cells are not in direct contact with the outside environment. Therefore, diffusion
Multicellular organisms such as humans possess complex body designs. They have specialised cells and tissues for performing various necessary functions of the body such as intake of food and oxygen. Unlike unicellular organisms, multicellular cells are not in direct contact with the outside environment. Therefore, diffusion cannot meet their oxygen requirements.
Wiki User
∙ 11y agoThe size of the multicellular organisms is very large compare to unicellular organisms. Diffusion is a passive mode of transport of substances and can transfer gases up to a very small distance only. This will not be sufficient for multicellular organisms’ needs.
Wiki User
∙ 14y agoBecause our body needs more fast process and diffusion alone is very slow process that's why!
Wiki User
∙ 12y agomulti cellular organisms are made up of large number of cells. diffusion of O2 in one cell is not enough for the rest of the body.
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Transport system needed multicellular organisation?
because multicellular organisms cannot survive on diffusion alone. as a result, they need these mechanisms to transport nutrients and substances through the body
Are protococcus single celled organism or multicellular organisms?
iT Is mUltIcelLULAr bEcAuSe iT Has mAnY CeLlS
Are mules multicellular?
Yes, mules are multicellular organisms.
Can parasites be protozoa fungi or multicellular organisms?
Protozoa, fungi and multicellular organisms can be parasites.
3 Differences between unicellular and multicellular organisms?
Three differences between unicellular and multicellular organisms is that unicellular organisms are microscopic and can live in extreme temperatures. Multicellular organisms are much larger and have systems and organs.
Why is diffusion possible in unicellular organisms not in multicellular organisms?
It is possible in multicellular but not effective .
Why is diffusion insufficient to meet the oxygen requirements of multicellular organisms like humans?
In single-celled organisms the entire surface of the organisms is in contact with the environments for the diffusion of substances. In multi-cellular organisms all the cells may not be in direct contact with the surrounding environment. So simple diffusion will not meet the requirements of all the cells.
Why is diffusion insufficient meet the oxygen requirements of multicellular organisms like humans?
In single-celled organisms the entire surface of the organisms is in contact with the environments for the diffusion of substances. In multi-cellular organisms all the cells may not be in direct contact with the surrounding environment. So simple diffusion will not meet the requirements of all the cells.
How do multicellular organisms breathe?
They obtain their oxygen by simple diffusion.
Transport system needed multicellular organisation?
because multicellular organisms cannot survive on diffusion alone. as a result, they need these mechanisms to transport nutrients and substances through the body
Why can't all waste products be diffused by multicellular organisms?
All waste products are removed, they may not go by diffusion alone.
Types of multicellular organisms?
ten multicellular organisms
All multicellular organisms are called?
There are many examples of multicellular organisms. Us humans are multicellular, animals are multicellular. Smaller organisms are unicells.
What transport mechanism do one celled colonial and simple multicellular organisms rely on?
These organisms use simple diffusion as a transport mechanism.This is possible because of the small size of the organisms. Diffusion is effective over small distances but as size increases it becomes less and less efficient.
Are fish multicellular organisms?
Yes, fish are multicellular organisms
Why do you need various system in human body?
As we are multicellular organism so we need different types of organs to perform all functions of our body. In multicellular organisms, all cells may not in the direct connect with the surrounding environment . Therefore, the diffusion is insufficient to meet the oxygen requirements in them. Instead, they need specialized organs for breathing and exchange of gases like heart ,lungs etc.
How do multicellular organisms begin?
multicellular organisms begin as a single cell.
