BiologyWise
Biology Wise: Unicellular Organisms
A unicellular organism is made of only a single cell. Its characteristics are described and several examples are provided.
BiologyWise
Biology Wise: Cytoplasm: The Functions of the Building Blocks of Life
Describes what cytoplasm is and its functions in regulating cellular processes.
BiologyWise
Biology Wise: Multicellular vs. Unicellular Organisms
Describes the characteristics of unicellular and multicellular organisms and gives examples for each.
Science4Fun
Science4 Fun: Cell
Gather information about prokaryotic and eukaryotic cells and also the main parts and organelles of a cell.
BiologyWise
Biology Wise: Three Domains of Life
Describes the characteristics of Archaea, Bacteria, and Eukarya, the three domains of life.
City University of New York
Exploring Life: The First Cells
A brief essay about older and more recent ideas on when the first cells evolved. Good coverage of different scientific theories about the origin of life.
CK-12 Foundation
Ck 12: Biology: Cell Division
[Free Registration/Login may be required to access all resource tools.] An overview of cell division in prokaryotes and eukaryotes.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: La Formas De Organizacion De La Vida
In this unit you will learn about the origin of the cells and their differences. It includes 15 interactive activities.
CK-12 Foundation
Ck 12: Life Science: Organelles
[Free Registration/Login may be required to access all resource tools.] All organelles are found in eukaryotic cells, while most are not found in prokaryotic cells. Learn more about organelles in this learning module produced by CK-12.
Alabama Learning Exchange
Alex: Inside the Cell
In this lesson, students learn the different kinds of cells including plant and animal cells. They also learn how to identify and name the organelles of eukaryotic cells.
BiologyWise
Biology Wise: 7 Major Steps of Dna Replication
Explains the structure of DNA and the seven steps that take place during DNA replication. Includes a labeled illustration for each step.
CK-12 Foundation
Ck 12: Life Science: Timeline of Evolution
[Free Registration/Login may be required to access all resource tools.] For life to evolve from simple single-celled organisms to many millions of species of prokaryotic species to simple eukaryotic species to all the protists, fungi,...
Other
The Domains and Kingdoms of Life
This site is a description of the history behind the 5 Kingdom system suggested by Robert Whittaker. An extensive list of resources is included.
Sophia Learning
Sophia: Viruses: Lesson 3
This lesson will introduce viruses and explain how they are similar and different to Prokaryotic and Eukaryotic Cells. It is 3 of 4 in the series titled "Viruses."
Sophia Learning
Sophia: Viruses: Lesson 4
This lesson will introduce viruses and explain how they are similar and different to Prokaryotic and Eukaryotic Cells. It is 4 of 4 in the series titled "Viruses."
Sophia Learning
Sophia: Viruses: Lesson 1
This lesson will introduce viruses and explain how they are similar and different to Prokaryotic and Eukaryotic Cells. It is 1 of 4 in the series titled "Viruses."
University of Arizona
University of Arizona: Guia Sobre Procariontes, Eucariontes &Virus
This exercise is to introduce you to the kinds of cells that make up all living systems, and to contrast cells with viruses. At the end you can test your understanding of these topics by taking a short test.
McGraw Hill
Mc Graw Hill: Control of Gene Expression Quiz
Take this 32 question quiz on control of gene expression. The quiz is multiple choice.
Smithsonian Institution
National Museum of Natural History: Paleobiology: The Proterozoic Eon
Journey into the past while reading this comprehensive overview of the Proterozoic Eon that covers topics such as the Prokaryotic life, Eukaryotes, glaciation, fauna evidence, and multicellular life forms.
Florida State University
Florida State University: Plasma Membrane
Comprehensive description and graphic of plasma membrane of prokaryotic and eukaryotic cells.
CK-12 Foundation
Ck 12: Biology: Regulation of Gene Expression Study Guide
Review how the human body regulates gene expression.