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Why do oxygen molecules easily diffuse across a cell membrane while protein molecules do not?
Wiki User
∙ 8y ago
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.
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoAnswer this que
Oxygen molecules fit between fatty acids, but protein molecules are too big. stion…
Wiki User
∙ 8y agoOxygen is much smaller and a gas while proteins are a lot larger and can't diffuse across the membrane. They need a carrier molecule.
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How do you transport proteins in a cell make it easier for certain molecules to diffuse across a membrane?
If there's a transfer protein then its NOT diffusion ... its active transport.
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 cannot-?
Proteins are to large or Oxygen is much smaller than a protein.
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.
What protein is an integral membrane protein that helps move molecules across a cell membrane?
identify the name and purpose of the cell membrane proteins that look like tunnels
What kinds of molecules freely diffuse across a semipermeable membrane?
Water molecules freely diffuse across a semipermeable membrane.
How do you use diffuse in sentence?
Oxygen molecules diffuse across the membrane.
Which is a factor that determies whether a mole can cross a cell membrane?
Lipid solubility determines if it will diffuse across. The presence of specific protein carrier molecules determines if it will be transported across the membrane.
How do you transport proteins in a cell make it easier for certain molecules to diffuse across a membrane?
If there's a transfer protein then its NOT diffusion ... its active transport.
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 diffuse across a cell membrane but a protein can't?
Oxygen is much smaller than a protein
What substance is most likely to passively diffuse across the plasma membrane by dissolving in the membrane?
Lipid-soluble molecules such as O2 and CO2 diffuse freely through the plasma membrane.
Why can oxygen diffuse across a cell membrane but a protein cannot-?
Proteins are to large or Oxygen is much smaller than a protein.
What helps molecules diffuse across membrane through transport proteins?
A process known as passive transport helps molecules to diffuse across a membrane. Passive transport does not involve the use of chemical energy, unlike active transport does.
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.
What molecule is able to easily diffuse across the cell's membrane?
Carbon dioxide, oxygen and some nonpolar molecules diffuse easily.
