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Why can oxygen diffuses across a cell membrane but a proton cannot?
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Why can oxygen diffuses across a cell membrane but Protein can not?
Its too large
What large molecules need help getting across cell membrane?
In general, molecules that cannot diffuse across the cell membrane are either very large, such as starches and fats, or very polar.
How does oxygen get in and out of plasma membrane?
Oxygen, O2, is a small enough molecule that it diffuses diwn it's concentration gradient into the cell and rather easily foes through the plasma membrane. Many small molecules can do this.
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 are there differences in the oxygen and carbon dioxide compositions of inhaled air and exhaled air?
Oxygen is very important for humans.Man cannot survive without oxygen.It is the primary agent in almost all process that takes place in a human body.When we inhale air we only utilise the oxygen present in the air.But really the air we inhale is a mixture of many gasses.The air we inhale contains about 78% nitrogen ,21% oxygen. When air is inhaled, a portion of that 21% that is oxygen diffuses across the alveolar membrane into the blood to be taken to the body to be used. At the same time, carbon dioxide, a waste gas for the body, is diffusing back across the alveolar membrane to be exhaled. This results in the change in inhaled and exhaled air. Exhaled air has a lower fraction of oxygen and a higher fraction of carbon dioxide as a result of the diffusion across the alveolar membrane.
Why can oxygen diffuses across a cell membrane but a protein cannot?
Proteins are to large or Oxygen is much smaller than a protein.
Why can oxygen diffuses across a cell membrane but Protein can not?
Its too large
What moves particles like oxygen into cells?
Oxygen diffuses directly across the cell membrane and requires nothing to carry it.
Oxygen diffuses through what structure?
A semipermeable membrane.
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.
What structure does oxygen diffuses through but a sodium ion may need active transport?
A semipermeable membrane
What structure does oxygen diffuses through but sodium ion may need active transport?
A semipermeable membrane
Can oxygen diffuse across a cell membrane?
Yes, how else would our cells obtain oxygen?
What large molecules need help getting across cell membrane?
In general, molecules that cannot diffuse across the cell membrane are either very large, such as starches and fats, or very polar.
How does oxygen get in and out of plasma membrane?
Oxygen, O2, is a small enough molecule that it diffuses diwn it's concentration gradient into the cell and rather easily foes through the plasma membrane. Many small molecules can do this.
What happens after oxygen from air enters the lungs?
after the oxygen from the air enters the lungs,the oxygen gets sent to the heart and then travels through the arteries with the blood.
