A hydrophobic molecules (such as a steroid molecule) can easily diffuse into the cell
sperm
diffuse large cell
As there is a higher concentration of salt in the sea water, salt will diffuse into the cell and this will cause the cell to shrink.
In this situation there will be endo-osmosis. The water molecules will diffuse from outside to inside cell.
cell depatment
Carbon dioxide, oxygen and some nonpolar molecules diffuse easily.
Oxygen
sperm
Water, any small molecule and lipids.
Oxygen (O2)
CO2, H2O, and O2 can all diffuse across a cell membrane. Also, small polar molecules (uncharged) and hydrocarbons easily diffuse across.
glucose molecules will diffuse out of the cell. apex
Glucose is too big to pass throught.
Yes, how else would our cells obtain oxygen?
steroid hormones because both diffuse into target cell easily
Carbon dioxide would diffuse out of the cell
If the stomata were smaller then CO2 would diffuse into the cell less rapidly.