A channel protein serves as a tunnel across the membrane into the cell. More specifically, channel proteins help molecules across the membrane via passive transport, a process called facilitated diffusion. These channel proteins are responsible for bringing in ions and other small molecules into the cell
Answer: Las células procariotas son aquellas que no tienen una membrana nuclear y su núcleo puede estar dispenso en el citoplasma de la célula, a diferencia de una célula eucariota, la cual tiene una membrana celular y una nuclear, la cuál puede ser vista con ayuda un microscopio.
To become an ion, it just needs to gain extra electrons or lose the one electron that it has. To become part of a molecule, it just needs to bond with another atom and share electrons with it.
Migration is D, the seasonal movement of organisms between locations!
Answer:
The answer is biotic and interacting with an abiotic factor.
Explanation:
In the picture there is a tree and it is raining and rain is abiotic since it is not alive and the tree is biotic so the answer is the 4th choice.
