Protein-From Ribosomes on Rough ER (smooth ER don't have Ribosomes)-->pinched off into Transport Vesicle-->Golgi Apparatus-->pinched off into Secretory Vesicle-->Protein secreted through cells/plasma membrane/ lysosomes.
Simply put, the cell has DNA-RNA-Protein. Each very complex but work together. What are the odds of ending up together in one cell? The body is believed to contain about 100 trillion cells. Detailed info on how the ama
The plasma membrane is composed of phospholipids with hydrophilic heads facing the extracellular fluid and the hydrophobic tails face inside the membrane. Integral, transmembrane, and peripheral proteins are also found in the plasma membrane.