There is a higher concentration of molecule "X" inside the cell than outside. Assuming molecule "X" moves passively across the cell membrane, what will most likely happen?

Question

a
"X" molecules will react with glucose.
b
"X" molecules will stay in their current place.
c
"X" molecules will move from inside the cell to outside.
d
"X" molecules will move from outside the cell to inside.

Answer 1

Given that there is a higher concentration of molecule "X" inside the cell than outside, and assuming that molecule "X" moves passively across the cell membrane (which typically means it is moving down its concentration gradient), the most likely outcome is:

c "X" molecules will move from inside the cell to outside.

This is because passive transport occurs from areas of higher concentration to areas of lower concentration, and since there is a higher concentration of "X" inside the cell, it will move outside.