City University of New York
The World of Cells: Golgi Apparatus
A very brief explanation of the structure and function of this organelle.
Ducksters
Ducksters: Biology for Kids: Cell Nucleus
Explore the cell nucleus in the science of biology on this site. Learn how this organelle is the control center of the cell, storing the DNA and hereditary information inside chromosomes.
Ducksters
Ducksters: Biology for Kids: Cell Ribosome
Kids learn about cell ribosome in the science of biology. This organelle acts like a tiny factory making all sorts of different proteins for the cell using RNA and amino acids.
BiologyWise
Biology Wise: Facts and Functions of the Golgi Apparatus
The structure and functions of the Golgi apparatus are described. Includes a list of interesting facts.
Khan Academy
Khan Academy: The Endomembrane System
Article looks at the structure and function of the different parts of the endomembrane system, how proteins, lipids, and vesicles are transported between these parts, and how this activity keeps the cell running smoothly.
Khan Academy
Khan Academy: The Cytoskeleton
There are three types of protein fibers in the cytoskeleton: microfilaments, intermediate filaments, and microtubules. This resource examines each type of filament, as well as some specialized structures: flagella, cilia, and centrosomes.
University of Arizona
Prokaryotes, Eukaryotes, & Viruses
This tutorial compares prokaryotic and eukaryotic cellular organization and contrasts cells with viruses. Includes a practice quiz to test your knowledge.
Biology 4 kids
Biology4 Kids: Microfilaments Stringy Proteins
A short, informational text piece which explains the structure and function of microfilaments inside a cell.
Khan Academy
Khan Academy: Pancreatitis and Pancreatic Cells
Practice for the MCAT by answering questions based on the given graphs about pancreatitis.
BiologyWise
Biology Wise: Facts About Chloroplast
Explains how chloroplasts evolved into their present form, how photosynthesis takes place in them, where they are found in plants, physical characteristics, and other functions they perform.
Florida State University
Florida State University: Mitochondria
Comprehensive explanation of mitochondria includes structure and purpose. Helpful graphics are also provided.
BiologyWise
Biology Wise: The Major Functions of Lysosomes
Explains what lysosomes are, the different functions they perform in a cell, and what can happen when they become dysfunctional.
BiologyWise
Biology Wise: Vacuole Analogy
Explains what vacuoles are and what their functions are in animal cells and plant cells, and offers analogies to help students understand their different roles.
Science Education Resource Center at Carleton College
Serc: It Takes Teamwork: How Endosymbiosis Changed Life on Earth
A tutorial on symbiotic relationships that explores the differences between prokaryotic and eukaryotic cells as well as the origins of eukaryotic organelles possibly being from endosymbiotic relationship. This tutorial also offers...
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: Functions of Vesicles
Describes the characteristics of vesicles and the functions they perform in a cell based on which type they are.
OpenStax
Open Stax: Structural Organization of the Human Body
Try considering the structures of the body in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms and biosphere....
Curated OER
The World of Cells: Golgi Apparatus
A very brief explanation of the structure and function of this organelle.
University of Arizona
University of Arizona: Cytoskeleton Tutorial
In this interactive tutorial you will discover that the cytoskeleton is both a muscle and a skeleton, and is responsible for cell movement, cytokinesis, and the organization of the organelles within the cell.
Biology 4 kids
Biology4 Kids: Ribosomes Protein Construction Teams
A short piece of informational text which explains the structure and function of ribosomes in a cell.
Biology 4 kids
Biology4 Kids: Mitochondria Turning on the Powerhouse
A brief informational summary which describes the structure and function of mitochondria inside cells.
Biology 4 kids
Biology4 Kids: Golgi Apparatus Packing Things Up
All you wanted to know about the structure and function of a cell's Golgi Apparatus.
Biology 4 kids
Biology4 Kids: Microtubules Thick Protein Tubes
A short, informational article which explains the structure and function of microtubules inside a cell.
Biology 4 kids
Biology4 Kids: Lysosomes Little Enzyme Packages
A short, informational piece which explains the structure and function of the lysosomes of a cell.