Amoeba sisters: video recap
cell transport
traveling molecules
for the following scenarios, determine whether the molecules in the scenario are moving by (s) simple
diffusion, (f) facilitated diffusion, or (a) active transport.
8. for water to travel across the cell membrane at a substantial rate, the water molecules travel through protein channels
known as aquaporins.
9. while water molecules are polar, they are also very small. one fact not mentioned in the video is that some water
molecules are able to squeeze directly through the phospholipid bilayer due to their small size.
10.
charged ions are traveling through a cell membrane with the concentration gradient.
_cells lining the gut need to take in glucose, but at a certain time, the concentration of extracellular glucose is lower than
the concentration already stored in the cells.
at a certain time, glucose is in a high concentration outside of a cell and needs to travel through the membrane into the
12.
cell.

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