Final answer:
The molecules correctly matched with their method of movement through the cell membrane are Sodium ion with facilitated diffusion and Oxygen with simple diffusion.
Step-by-step explanation:
The question is asking to match a molecule with the correct method of movement through the cell membrane. Let's review the options given:
- A) Sodium ion - Facilitated diffusion: This is correct because sodium ions typically move through the cell membrane via protein channels or carriers, which is facilitated diffusion.
- B) Oxygen - Simple diffusion: This is also correct; oxygen is a small, nonpolar molecule that can easily move across the cell membrane without assistance, through simple diffusion.
- C) Glucose - Active transport: This is incorrect. Glucose typically enters and leaves cells through facilitated diffusion using glucose transporters, rather than active transport.
- D) Water - Exocytosis: This is incorrect. Water usually moves through the cell membrane via osmosis, often through specialized channels called aquaporins, not exocytosis. Exocytosis is a process where materials are expelled from the cell.
Given the options above, the molecules that are correctly matched with their method of movement through the cell membrane are:
- Sodium ion - Facilitated diffusion
- Oxygen - Simple diffusion