Cellular membranes play a critical role in cell survival. The cell membrane, like a well-guarded border, keeps harmful materials from entering the cell and sequesters beneficial compounds in its interior. Like border patrol checkpoints, proteins embedded in the cell’s membrane regulate the traffic of materials into and out of the cell. These transport proteins ensure that the cell imports necessary nutrients and efficiently deports waste products.https://www.reasons.org/explore/publications/facts-for-faith/read/facts-for-faith/2002/07/01/biotic-borders-cell-membranes-under-scrutiny
The fine-tuning and singularity of conditions needed for cell membrane structure and function stand as hallmark characteristics of Intelligent Design—reasonable expectations if God is responsible for life, unreasonable and a challenge for evolution searching for random and spontaneous emergence of such massively complex structures.