burnsmykala23
04.08.2019 •
Biology
What characteristics must a substance have in order to be easily transported across the cell membrane?
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Ответ:
There are three factors that a substance must have in order to diffuse through a cell membrane.
1. A substance should have the right concentration in order to diffuse through membrane as we know that molecules can only diffuse through areas of high concentration to a lower concentration. Hence the substance should have higher concentration that the cell to diffuse through the membrane.
2. The substance should not be charged as the cell membranes do not allow charged particles to enter into the cell unless the cell has electrical potential.
3. The size of the particles matters as molecules of smaller size can easily diffuse through the cell membrane
Ответ:
The Danes were enjoying prosperity, after having conquered many other tribes through battle, Shield Sheafson as their leader. He is described as a 'scourge of many tribes, / a wreaker of mead-benches, rampaging among foes' (lines 4-5).
Explanation: