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 stucture allows this oxygen to pass into the environment?

Answer 1

The structure that acts as a gatekeeper for cells, controlling what can enter and exit, is the cell membrane (or plasma membrane). In plant cells, oxygen produced as a waste product during photosynthesis can pass through the cell membrane. Additionally, in plant cells, the stomata (small openings on the surface of leaves) also play a crucial role in allowing gases, including oxygen, to enter and exit the plant. However, the primary barrier controlling the movement of substances at the cellular level remains the cell membrane.