Which of the following will easily pass through the membrane via simple diffusion?

Which letter is pointing to a hydrophillic portion of the cell membrane?

Which letter is pointing to a hydrophobic portion of the cell membrane?

Which letter represents the phospholipid bilayer?

Thinking back to the baggy lab. At the beginning of the lab, the concentration of iodine was ___ outside of the bag.

Thinking back to the baggy lab, the concentration of iodine was ____ in the bag

In the baggy lab, what substance was able to move across the membrane?

The tendency to be attracted to water due to the polarity of the molecule

Cell membrane's property that allows some substances to cross & prevents others from crossing:

A protein that plays a role in the active or passive movement of specific substances through cell membrane

A protein linked to a sugar or polysaccharide; used as receptor molecules on the surface of cells for communication purposes