Cell membranes are structured so that molecules can pass in and out of the cell across them. While both plant and animal cells have membranes, plant cells also have cell walls surrounding their cells. Which of the following observations BEST supports the conclusion that molecules can cross cell walls as well?
Answer

Every cell has its own nucleus.

The cell wall is directly outside the cell membrane.

The chloroplasts need light in order to work.

Water from the soil is used in photosynthesis.

Question

Cell membranes are structured so that molecules can pass in and out of the cell across them. While both plant and animal cells have membranes, plant cells also have cell walls surrounding their cells. Which of the following observations BEST supports the conclusion that molecules can cross cell walls as well?
Answer
		
Every cell has its own nucleus.
		
The cell wall is directly outside the cell membrane.
		
The chloroplasts need light in order to work.
		
Water from the soil is used in photosynthesis.