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Oxygen is much smaller than a protein.
proteins are too large
Difference in size
Wiki User
∙ 6y ago
Wiki User
∙ 11y agoThe oxygen molecule is small, so it can easily pass through the cell membrane. A protein is much larger, and cannot easily pass through the cell membrane. It would have to be actively transported into or out of the cell.
Wiki User
∙ 11y agobecause oxygen is apart of earth and some cells are not.
Anonymous
Wiki User
∙ 11y agoOxygen is a very small molecule so it passes through the cell membrane easily, but proteins are too large to cross the cell membrane unassisted by transport proteins.
Wiki User
∙ 13y agoIts too large
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Why can oxygen diffuse across a cell membrane but a protein cannot-?
Proteins are to large or Oxygen is much smaller than a protein.
Why can oxygen diffuse across a cell membrane but a protein?
Its too large
Can oxygen diffuse across a cell membrane?
Yes, how else would our cells obtain oxygen?
Why do oxygen molecules easily diffuse across a cell membrane while protein molecules do not?
Cell membrane is semipermeable and oxygen molecules have size required for easy passqge while Glucose molecules do not have that size required for easy passage.
What are 2 substances that diffuse freely across a cell membrane?
CO2, H2O, and O2 can all diffuse across a cell membrane. Also, small polar molecules (uncharged) and hydrocarbons easily diffuse across.
Why can oxygen diffuse across a cells membrane but a protein cannot?
Proteins are to large or Oxygen is much smaller than a protein.
Why can oxygen diffuse across a cell membrane but a protein cannot-?
Proteins are to large or Oxygen is much smaller than a protein.
Why can oxygen diffuse across a cell membrane but a protein can't?
Oxygen is much smaller than a protein
Why can oxygen diffuse across a cell membrane but a protein?
Its too large
Why can oxygen diffuse across a cell membrane but a protein can?
Its too large
Why can oxygen diffuses across a cell membrane but a protein cannot?
Proteins are to large or Oxygen is much smaller than a protein.
How do you use diffuse in sentence?
Oxygen molecules diffuse across the membrane.
Can oxygen diffuse across a cell membrane?
Yes, how else would our cells obtain oxygen?
Why do oxygen molecules easily diffuse across a cell membrane while protein molecules do not?
Cell membrane is semipermeable and oxygen molecules have size required for easy passqge while Glucose molecules do not have that size required for easy passage.
Why can oxygen across a cell membrane but a protein cannot?
Because an oxygen atom is very small and a protein is made up of lots of atoms and is therefore very large by comparison.
Why can oxygen defuse across a cell membrane but protein cannot?
Because an oxygen atom is very small and a protein is made up of lots of atoms and is therefore very large by comparison.
What causes oxygen to enter and carbon dioxide to leave the capillaries?
Oxygen and carbon dioxide get into and out of cells via diffusion. The gases diffuse across the thin capillary wall, and then diffuse across the cell membrane.
