Yale University
Yale University Center for Structural Biology
This site is an excellent resource on the research and graduate studies programs in the field of biophysics.
National Health Museum
Access Excellence: Graphics Gallery of Biotechnology
This site provides simple diagrams on all major topics in cell biology, genetics and biotechnology.
CK-12 Foundation
Ck 12: Biology: Characteristics of Life
[Free Registration/Login may be required to access all resource tools.] Describes the characteristics of life.
BiologyWise
Biology Wise: Lysosome Structure
Lysosomes are found in both plant and animal cells. The structure and functions of this cell organelle are described here, with note made of the diseases that can be caused by defective lysosomes.
BiologyWise
Biology Wise: A Brief Comparison of Plant Cell vs. Animal Cell
Presents labeled illustrations of a plant cell and an animal cell which demonstrate the parts that are common and different. This is followed by a discussion of their similarities and then of their differences.
BiologyWise
Biology Wise: Diagram of Plant Cell and Functions of Its Organelles
Provides a labeled diagram of a plant cell and descriptions of the characteristics and functions of many of its organelles.
BiologyWise
Biology Wise: A Labeled Diagram That Explains Function of Nucleolus
Explains what the cell nucleolus is, its functions, and its structure.
BiologyWise
Biology Wise: Rough Endoplasmic Reticulum
The endoplasmic reticulum is found in eukaryotic cells and has three layers. Proteins are synthesized in the rough endoplasmic reticulum and its structure and functions are described here.
BiologyWise
Biology Wise: The Structure and Function of Ribosomes
Describes the structure of ribosomes and their function of synthesizing proteins within a cell.
BiologyWise
Biology Wise: Nuclear Membrane Function
Describes the structure and functions of the membrane surrounding a cell nucleus.
Texas Instruments
Texas Instruments: Cell Components
This StudyCards stack enables students to review the terms associated with the structures that comprise a living cell.
CK-12 Foundation
Ck 12: Biology: Membrane Proteins
[Free Registration/Login may be required to access all resource tools.] Describes proteins in the plasma membrane.
E-learning for Kids
E Learning for Kids: Science: Antarctica: How Are Living Things Described?
Learn about the different levels of organization in living things, from cells to organisms.
BiologyWise
Biology Wise: Gram Negative Bacteria
Learn about gram staining and the characteristics of gram-negative bacteria. A discussion of cell wall structure is accompanied by a labeled illustration. Includes a list of examples of gram-negative bacteria organized by subgroup....
BiologyWise
Biology Wise: An Overview of the Difference Between Nadh and Nadph
NADH and NADPH are enzymes involved in cellular processes. Explains how NADH participates in catabolic reactions where energy is released and NADPH is involved in anabolic reactions where energy is consumed. Their functions and chemical...
BiologyWise
Biology Wise: Chromosomes: The Carriers of Genetic Information
Explains what chromosomes are, their structure, their functions within a cell, and the health impact of mutations in a gene sequence.
ClassFlow
Class Flow: Plant and Animal Cells
[Free Registration/Login Required] This flipchart is intended to introduce plant and animal cells to fifth graders. Pictures, a web link, and several opportunities for student participation are included. An end-of-lesson assessment is...
BiologyWise
Biology Wise: What Is the Nucleolus?
The characteristics, structure, and functions of the nucleolus are described.
BiologyWise
Biology Wise: Centriole Functions
Describes the structure and functions of centrioles within a cell.
BiologyWise
Biology Wise: The Smooth Endoplasmic Reticulum and Its Functions
The endoplasmic reticulum is found in eukaryotic cells. The characteristics and functions of the smooth endoplasmic reticulum are described and it is then compared with the rough endoplasmic reticulum.
Khan Academy
Khan Academy: Cell Cell Junctions
Learn about the different types of intercellular junctions, including plasmodesmata, tight junctions, gap junctions, and desmosomes.
University of Tulsa
University of Tulsa: Cell Energetics
This is the index page for a slide series on cell energetics. Among the topics covered in the series is the role of enzymes in the metabolic process. Use the topic list to go straight to any slide.
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.