The figure below shows the sizes of prokaryotic, bacterial, and eukaryotic, plant and animal, cells as well as other molecules and organisms on a logarithmic scale.

Universal features of cells. Characteristics of prokaryotic cells. Surface area-to-volume ratio.

Learn about the similarities and differences between prokaryotic and eukaryotic cells.

Apply your understanding of prokaryotic and eukaryotic cells in this set of free, standards-aligned practice questions.

Certain characteristics of mitochondria and chloroplasts support the endosymbiotic theory, which posits that eukaryotic cells evolved from simpler prokaryotic cells that merged together. Lynn …

The figure below shows the sizes of prokaryotic, bacterial, and eukaryotic, plant and animal, cells as well as other molecules and organisms on a logarithmic scale.

Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

Overview of eukaryotic cells and how they differ from prokaryotic cells (nucleus, organelles, and linear chromosomes).

A diagram of a typical prokaryotic cell (upper left), and a micrograph of prokaryotic cells (bottom right). Cell diagram created with Biorender.com. Image credit: "E. coli Bacteria" by NIAID, …

"In general, prokaryotes are single-celled organisms. However, there's increasing evidence that some groups of prokaryotic cells can organize to form structures that resemble multicellular …