This animation describes how bacteria are cultured in the lab and the different phases of bacterial growth, including lag, log, stationary and death.

Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Explain how hormones regulate the excretory system
Discuss the role of hormones in the reproductive system
Describe how hormones regulate metabolism
Explain the role of hormones in different diseases

By the end of this section, you will be able to do the following:

Describe how feedback inhibition would affect the production of an intermediate or product in a pathway
Identify the mechanism that controls the rate of the transport of electrons through the electron transport chain

Discusses diabetes as a serious public health problem. Very comprehensive site with information on diagnosing and living with the disease, health insurance issues, prevention, and more.

In this animated video segment adapted from the Eagle Books series produced by the Centers for Disease Control and Prevention, an American Indian boy named Rain That Dances meets Mr. Eagle, who is sad about the health of the people in the village. Mr. Eagle describes how hard work and physical activity used to be a way of life, making people strong and healthy, but now many people are sick with diabetes because of their new lifestyles. Rain That Dances learns how to prevent diabetes by eating healthy traditional foods and being more active, like his ancestors. Includes background essay and discussion questions. [3:49]

At this site from The Nobel Foundation you can read Frederick Banting's Nobel Lecture, "Diabetes and insulin," which was originally given September 15, 1925.

This pathway outlines the process of genetic engineering with a focus on gene cloning. This pathway also provides an introduction for the ABE lab series.

This site provides a detailed overview of diabetes, including a focus on signs and symptoms, causes, risk factors, treatments, and more.

This site provides information on carbohydrate metabolism regulation through a quiz set-up. Answer each question, and the correct answers will be presented, complete with a full tutorial.

This page from WebMD Health presents good, comprehensive information on a problem common to all diabetics at some time - low blood sugar (hypoglycemia). Discusses the symptoms, hypoglycemia in diabetes and how to manage hypoglycemia in diabetes, and the causes of hypoglycemia.