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- Substance X normally moves into a cell by facilitated diffusion. An AP Biology
student uses a microinjection procedure to inject enough substance X into a
cell so that its concentration inside the cell is eight times its concentration
outside of the cell. Predict the direction that substance X will move the instant
after it is injected into the cell.
A. Substance X will move into the cell until its concentration is ten times as
high inside the cell as it is outside the cell.
B. The movement of substance X in any direction will cease.
C. Substance X will move into the cell from the outside environment.
D. Substance X will move out of the cell into the outside environment.



Answer :

GinnyAnswer

Final answer:

When injected into a cell where its concentration is eight times higher inside compared to outside, Substance X will move out of the cell into the outside environment.


Explanation:

Substance X moving into a cell by facilitated diffusion means it moves from an area of low concentration to high concentration with the help of transport proteins. When injected such that its concentration inside is eight times higher than outside, Substance X will move out of the cell into the outside environment. This occurs because the concentration gradient now favors movement out of the cell.


Learn more about Facilitated diffusion here:

https://brainly.com/question/14852229


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