Question

question 2 10 pts
which of the following structures serves as the cells boundary from its environment?
○ channel proteins
● cell membrane
○ mitochondrion
○ chloroplast

Explanation:

Channel proteins are embedded in the cell membrane for transport, mitochondria produce energy, chloroplasts handle photosynthesis, while the cell membrane forms the outer boundary that separates the cell from its external environment.

Answer:

cell membrane