University of California
Organic Structures:the Architecture of Life
Article discusses how objects in nature are held together through balanced forces. Scroll midway down to find info on microtubules and microfilaments. Links to excellent electron micrographs.
University of Arizona
University of Arizona: Cytoskeleton Tutorial
Complete descriptions of microtubules and microfilaments. Flip to the following pages to go through a cytoskeleton tutorial with graphics of cross-sections and diagrams. You can test yourself at the end.
University of Hamburg
University of Hamburg: Microtubules
Discussion of the size and structure of the microtubules in a cell. Links within the text take students to images and schematics.
Biology 4 kids
Biology4 Kids: Centrioles Organizing Chromosomes
Read about the tiny microtubules which are so crucial during the process of mitosis, the centrioles.
Biology 4 kids
Biology4 Kids: Microfilaments Stringy Proteins
A short, informational text piece which explains the structure and function of microfilaments inside a cell.
Biology 4 kids
Biology4 Kids: Microtubules Thick Protein Tubes
A short, informational article which explains the structure and function of microtubules inside a cell.
CK-12 Foundation
Ck 12: Biology: Cytoplasm and Cytoskeletons
[Free Registration/Login may be required to access all resource tools.] Discusses the roles of the cytoplasm and cytoskeleton.
Other
Nexperion: Filament Systems
Get a microscopic look at the filament system through special probes and instrumentation. Site shows pictures of the actin fil-a-ments, inter-me-di-ate fil-a-ments, and micro-tubules using the special probes.
Sophia Learning
Sophia: Cytoskeleton: Lesson 3
This lesson will discuss the structure and function of the cytoskeleton. It is 3 of 4 in the series titled "Cytoskeleton."
Sophia Learning
Sophia: Centrioles: Lesson 3
This lesson will discuss the structure and function of the centrioles. It is 3 of 4 in the series titled "Centrioles."
Sophia Learning
Sophia: Centrioles: Lesson 4
This lesson will discuss the structure and function of the centrioles. It is 4 of 4 in the series titled "Centrioles."
BiologyWise
Biology Wise: Centriole Functions
Describes the structure and functions of centrioles within a cell.