Cells contain a certain structure that acts as a gatekeeper in order to maintain homeostasis. This gatekeeper controls what is able to enter and exit the cell. Plant cells produce oxygen as a waste product. What cell structure allows this oxygen to pass into the environment?

Question

A.

chloroplast

B.

vacuole

C.

endoplasmic reticulum

D.

cell membrane

Answer 1

The correct answer is:

D. cell membrane

The cell membrane acts as a gatekeeper for the cell, controlling what substances, including oxygen, can enter and exit the cell. While chloroplasts are involved in the production of oxygen during photosynthesis, it is the cell membrane that allows the oxygen to pass into the environment.