Question

why can oxygen diffuse across a cell membrane but a protein cannot

Answer 1

Oxygen is much smaller than a protein. proteins are too large,A protein cannot diffuse across a cell membrane because as the pore radius of the membrane approaches the protein radius, the mobility of the protein is significantly reduced

Answer 2

Oxygen diffuses across a cell membrane but a protein cannot because the cell membrane is semipermeable, only small, uncharged substances like carbon dioxide and oxygen can easily diffuse across it.

Why can't protein molecules diffuse through the membrane?

Protein cannot passively diffuse throughout the cell membrane due to its size and polarity. Therefore, a delivery system or technique similar to that used in nucleic acid transfection is always required.

When oxygen-rich (and low-carbon) blood flows through the cell, oxygen diffuses through the cell membrane into the intracellular low-concentration region. This is easily possible because the oxygen molecule (O2) is very small and has no charge or polarity. Oxygen is quickly consumed by mitochondria.

Learn more about oxygen here: https://brainly.com/question/11494449

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