In addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus ...

Mitochondria and chloroplasts likely evolved from engulfed prokaryotes that once lived as independent organisms. At some point, a eukaryotic cell engulfed an aerobic prokaryote, which then formed ...

View Full Profile. Learn about our Editorial Policies. Mitochondria power eukaryotic cells to carry out their varied functions. However, these organelles themselves may also be more than they appear, ...

A similar model is thought to have led to the evolution of chloroplasts in plants, but the story begins with a eukaryotic ...

Daniel Mills, Ludwig-Maximilians-Universität München During this time, some of the defining characteristics of modern eukaryotic cells—the nucleus, mitochondria, cytoskeleton, cell membrane, and ...

Some 1.4 billion years ago, somewhere in Earth’s primitive oceans, a eukaryotic cell is believed to have engulfed an oxygen-respiring bacterium, which over generations became mitochondria.

This makes it a critical part of prokaryotic cell function. Prokaryotes do not have mitochondria. Interestingly, one widely accepted theory of eukaryotic evolution, known as the endosymbiotic theory, ...

In biology textbooks, the endoplasmic reticulum is often portrayed as a distinct, compact organelle near the nucleus, and is commonly known to be responsible for protein trafficking and secretion. In ...

Eukaryotic cells also acquired other organelles ... Nonetheless, the Ediacarans can trace their origins back to the evolution of mitochondria. And this seems to have hinged on a single fluke ...

Cell contents Cytoplasm, cell organelles include mitochondria ... plasmids are found in a few simple eukaryotic organisms. DNA is a single molecule, found free in the cytoplasm; additional ...