Sodium,potassium,and Calcium Ions Pass Through the Cell Membrane by

question 60

Multiple Choice

Sodium,potassium,and calcium ions pass through the cell membrane by

• A)diffusion after first dissolving in the phospholipid layer.
• B)active transport by carrier molecules against their concentration gradient
• C)being transported by carrier molecules.
• D)diffusion after first dissolving in enzyme molecules.
• E)diffusion after first dissolving in the phospholipid layer and diffusion through open membrane channels.

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