Macmillan Education
W.h. Freeman Publishing: Allosteric Regulation of Enzyme
Reactions in cells must be regulated and one way to do this is using allosteric molecules. These regulators can activate enzymes or inhibit them. This tutorial explains exactly how allosteric regulation works using words, narration, and...
Soft Schools
Soft Schools: Cellular and Molecular Biology : Cell Processes Quiz
Take this interactive, multiple-choice quiz over the biochemical processes of life, then review your score and any missed questions at the end.
University of Arizona
The Biology Project: Photosynthesis Problem Set Light Reaction
Problem set tests understanding of Photosynthesis by providing multiple choice questions accompanied by related tutorials. Problem set 1 focuses on light and role of pigments.
CK-12 Foundation
Ck 12: Biology: Earth Forms and Life Begins Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the origin of life.
Biology Pages
Kimball's Biology Pages: Transport Across Cell Membranes
This site has information on how facilitated diffusion of ions takes place through proteins, or assemblies of proteins, embedded in the plasma membrane. Includes a helpful diagram.
Biology Pages
Kimball's Biology Pages: Gene Translation: Rna to Protein
Very good description of the process of translation with a good graphic to go along with it. Includes a chart classifying all of the RNA Codons.
Biology Pages
Kimball's Biology Pages: Chloroplasts
This site touches on all the high points of chloroplasts. Includes pictures and diagrams, as well as links to more detailed information.
CK-12 Foundation
Ck 12: Biology: Glucose and Atp
[Free Registration/Login may be required to access all resource tools.] Overview of glucose and ATP.
CK-12 Foundation
Ck 12: Biology: Water and Life
[Free Registration/Login may be required to access all resource tools.] Covers the structure and properties of water.
CK-12 Foundation
Ck 12: Biology: Calvin Cycle
[Free Registration/Login may be required to access all resource tools.] Describes the Calvin cycle, the second stage of photosynthesis.
Other
Hypertextbook: Large Molecules
This is a good, in-depth reference for the study of macromolecules in biology - lipids, proteins and carbohydrates. Includes images and links to other sources as well as a quiz for students to check understanding.
McGraw Hill
Glencoe Biology: The Building Blocks of Life: Self Check Quiz
Try these five multiple-choice questions about the building blocks of life. The quiz is self-checking, and provides hints to the student if needed.
Other
Molecular Biology Notebook: Structure of Rna
Read about the structure of RNA, its components, and how they fit together. This source includes visual aids to help you and a list of the different kinds of RNA and their functions.
University of Illinois
University of Illinois: Molecular Biology Cyberlab: Experiment 2: Gel Electrophoresis of Dna
A very good page that uses a Q&A format to describe the process of gel electrophoresis. Interactive in a rudimentary way.
Estrella Mountain Community College
Online Biology Book: Transport in and Out of Cells
This resource is an article about the cell membrane, and its role in water and solute movement in and out of the cell.
University of Arizona
University of Arizona: Biochemistry
Problem sets, tutorials, and activities related to biochemistry.
Texas Education Agency
Texas Gateway: Water
Given scenarios, descriptions, or illustrations, the student will determine the properties of water that affect chemical and biological systems.
Vision Learning
Visionlearning: Food Chemistry: Carbohydrates
Read about carbohydrates, which make up one of the three "Major classes of macronutrients that are essential to living organisms." In addition to defining several terms, including carbohydrate, simple sugars, complex carbohydrates,...
Khan Academy
Khan Academy: Overview of Transcription
Find out about the process of transcription, where the DNA sequence of a gene is transcribed to make an RNA molecule.
Soft Schools
Soft Schools: Dna Quiz
Take this interactive, multiple-choice quiz over the molecule of life, DNA. Then review your score and any missed questions at the end.
Biotechnology Institute
Biotechnology Institute: Your World: The New Diagnostics [Pdf]
Discover new knowledge about molecular biology- how molecules fit together as a lock and key. This has given researchers new diagnostic tools that use immune cells from mice to produce antibodies to detect a specific virus or bacterium.
University of Arizona
Ua: Large Molecules Problem Set
Understandable lessons about numerous aspects about the composition, function, and interactions of proteins. Each starts with an interactive quiz and links to a tutorial.
University of Arizona
University of Arizona: Chemistry Tutorial
The purpose of this tutorial is to introduce you to some of the chemical concepts which are necessary to understand biology. Concepts include the basics for understanding biology, chemical bonds and attractive forces, the chemistry of...
BiologyWise
Biology Wise: Enzyme Substrate Complex
Discusses the properties of enzymes and the concept of enzyme-substrate specificity, and how a substrate molecule binds to an enzyme to form an enzyme-substrate complex. An overview of enzyme-substrate reactions is also presented.