Question

match the different ions and molecules to the type of transport needed to pass through the plasma membrane. drag each item on the left to its matching item on the right. note that every item may not have a match, while some items may have more than one match. ca²⁺ na⁺ k⁺ amino acid co₂ facilitated diffusion simple diffusion passive transport active transport

Explanation:

• $Ca^{2+}$, $Na^{+}$, $K^{+}$: These ions typically require active transport (against concentration gradient, needs energy) and facilitated diffusion (through transport - proteins down concentration gradient).
• Amino acid: Usually transported via facilitated diffusion and sometimes active transport depending on the gradient.
• $CO_{2}$: Small, non - polar molecule that diffuses across the plasma membrane by simple diffusion (a type of passive transport). Passive transport includes simple and facilitated diffusion and does not require energy input.

Answer:

• $Ca^{2+}$: facilitated diffusion, active transport
• $Na^{+}$: facilitated diffusion, active transport
• $K^{+}$: facilitated diffusion, active transport
• Amino acid: facilitated diffusion, active transport
• $CO_{2}$: simple diffusion, passive transport