Question

potassium ions play an important role in maintaining normal cell functions. potassium ions are positively charged. like carbon dioxide, potassium ions can cross the cell membrane by passive transport. unlike carbon dioxide, potassium ions enter the cell passively using facilitated diffusion. this video shows the facilitated diffusion of potassium ions. the diffusion of potassium ions is called facilitated because potassium ions diffuse with the help of integral proteins embedded across the phospholipid bilayer. each of these integral proteins has unique properties that only allow specific substances to move through it. complete the paragraph. in the video, the net movement of potassium ions is the cell. potassium ions cross the cell membrane through the phospholipids directly. potassium ions cross the cell membrane through certain proteins embedded in the lipid bilayer. these ions cross the cell membrane by diffusion, which is diffusion. potassium ions energy from the cell to do this.

Explanation:

Potassium ions enter cell by facilitated diffusion through integral - membrane proteins without using cell energy.

Answer:

In the video, the net movement of potassium ions is into the cell. Potassium ions do not cross the cell membrane through the phospholipids directly. Potassium ions cross the cell membrane through certain proteins embedded in the lipid bilayer. These ions cross the cell membrane by facilitated diffusion, which is diffusion with the help of proteins. Potassium ions do not require energy from the cell to do this.