Estrella Mountain Community College: The Endocrine System

Explain, distinguish, list, and describe the structure and function of the human endocrine system. Medical school hopefuls also diagram how calcium, glucose, and osmotic levels are regulated in the blood. This learning exercise is...

This resource provides general information about the human excretory system and kidneys, and a section only about nephrons. It includes several pictures, diagrams and explanations for understanding.

Scroll down in this chapter on aerobic respiration to the section called "Electron Transport Phosphorylation" for a description and explanation of the electron transport system. It includes great diagrams.

Description of organelles. Links will take you to a glossary with pictures for many of the definitions. Ends with a quiz linked to answers.

This site is part of an "Online Biology Book" and contains excellent text and visuals. Discusses F and R plasmids and includes great illustrations. Well organized and clear.

This resource describes transcription and its role in protein synthesis. There are also illustrations and diagrams to be used as visual aids.

This section (in table of contents as "Phylum Annelida: Segmented Worms") gives a description of how segmented worms developed certain characteristics as well as it explains the differences in the evolution of different classes of...

Resource provides an explanation of Cell Transport. Includes many practical examples, as well as pictures. Sections include Water and Solute Movement, The Cell Membrane. Cells and Diffusion, Active and Passive Transport, Carrier-assisted...

Detailed explanation, supported with numerous images, of how cells move materials across cell membranes. Terminology is linked to a biology glossary.

Estrella Mountain Community College provides excellent introductory information on the laws of thermodynamics. Has some learning objectives outlined at the end of the page.