Which statement when added to Figure 1 will describe how a chemical moves through the cell membrane during passive transport?
Understand the Problem
The question is asking which statement best describes how a chemical moves through the cell membrane during passive transport, based on the provided information about the cell membrane's functioning and concentration gradients.
Answer
Oxygen can freely enter the cell if there is a lower oxygen concentration inside the cell than outside the cell.
The final answer is: Oxygen can freely enter the cell if there is a lower oxygen concentration inside the cell than outside the cell.
Answer for screen readers
The final answer is: Oxygen can freely enter the cell if there is a lower oxygen concentration inside the cell than outside the cell.
More Information
During passive transport, molecules move from an area of higher concentration to an area of lower concentration without the use of energy. Oxygen is a small molecule that can easily move across the cell membrane via diffusion.
Tips
A common mistake is confusing passive transport with active transport, which requires energy. In passive transport, movement is down the concentration gradient.
Sources
- 3.5 Passive Transport – Concepts of Biology – 1st Canadian Edition - opentextbc.ca
- Simple diffusion and passive transport (article) | Khan Academy - khanacademy.org
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