cell membrane Archives

(A) In modern lifeforms, cellular traits and functions are controlled by genetic information encoded in DNA sequences. Mutations generate sequence diversity, and when this diversity leads to differences in fitness, natural selection enriches variants with higher fitness in the next generation. (B) At the earliest stage of life, the “evolution” of primordial cells was likely far simpler. Diversity in molecular composition would have directly shaped protocell behavior through their physicochemical properties, allowing molecules with advantageous traits to be preferentially retained. Such composition-driven selection may have formed a primitive basis for evolutionary change. Credit Tatsuya Shinoda & Natsumi Noda, ELSI

Biochemistry & Organic Chemistry, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Press Release

How Early Cell Membranes May Have Shaped The Origins Of Life

by Keith CowingJanuary 22, 2026January 22, 2026

Modern cells are complex chemical entities with cytoskeletons, finely regulated internal and external molecules, and genetic material that determines nearly every aspect of their functioning. This complexity allows cells to […]

Fluorescence microscopy video showing vesicle formation -- University of California - San Diego

Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Press Release

How The First Cell Membranes Came To Exist

by Keith CowingNovember 14, 2024

Few questions have captivated humankind more than the origin of life on Earth. How did the first living cells come to exist? How did these early protocells develop the structural […]