lipid membrane

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29 05, 2017

Evolution of Cells – Biology

By |2018-04-13T17:03:50-07:00May 29th, 2017|Biology|0 Comments

A mutated snake with two heads With all these new molecules like lipids, amino acids, RNA, and protein floating around in the oceans by around four billion years ago, there were a lot of new possibilities for what could bump into what. Sometimes a group of lipid molecules happened to stick together and [...]

29 05, 2017

What is a prokaryote – Cell biology

By |2018-09-11T05:51:18-07:00May 29th, 2017|Biology|0 Comments

A prokaryote (seen through a microscope) What does "prokaryote" mean? The simplest living cells are called prokaryotes, which is Greek for "before the nucleus" - these are cells that were so simple that they didn't have a nucleus. When did the first prokaryotes evolve? The first prokaryotes probably evolved from even simpler cells [...]