Molecules needed in the cell can sometimes
be too large to pass
through the spaces of
the cell membrane,
How do these
biological molecules
move into the cell?
A. The molecule will break up into smaller pieces.
B. The molecule will shrink so that it can fit in the spaces.
C. The molecule will move
through a matching protein
channel.

im pretty sure the answer is c

because the asteroid belt is between the mars and jupiter orbits, it is around 2.2 to 3.2 astronomical units (au) from the sun – which is approximately 329,115,316 to 478,713,186 km. the average distance between objects is a massive 600,000 miles.

explanation:

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: