CK-12 Foundation
Ck 12: Hormones
[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will learn to explain how hormones work by binding to receptors of target cells.
OpenStax
Open Stax: Anatomy & Physiology: Hormones
Students will find out about the three major classes of hormones on the basis of chemical structure, and learn the role they play in human physiology.
OpenStax
Open Stax: Anatomy & Physiology: Gonadal and Placental Hormones
Students will identify the most important hormones produced by the testes and ovaries, and learn about the hormones produced by the placenta.
OpenStax
Open Stax: Exercise, Nutrition, Hormones, and Bone Tissue
All of the organ systems of your body are interdependent, and the skeletal system is no exception. The food you take in via your digestive system and the hormones secreted by your endocrine system affect your bones. Even using your...
Science Buddies
Science Buddies: One Bad Apple Spoils the Whole Bunch: Plant Hormone Ethylene
We have all heard the old saying, "One bad apple spoils the whole bunch." Due to the production of the plant hormone ethylene during the ripening process, this saying proves true. This experiment will investigate the role of ethylene in...
CK-12 Foundation
Ck 12: Biology: Hormones
[Free Registration/Login may be required to access all resource tools.] How hormones work by binding to receptors of target cells.
CK-12 Foundation
Ck 12: Hormone Regulation
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will learn to describe feedback mechanisms that regulate hormone secretion.
BBC
Bbc: Week of 6 9 14: Autism Linked to 'Male Hormones'
Learn about what scientists have discovered about the connection between hormones and autism.
CK-12 Foundation
Ck 12: Biology: Hormone Regulation
[Free Registration/Login may be required to access all resource tools.] Describes how feedback mechanisms regulate hormone secretion.
TED Talks
Ted: Ted Ed: How Do Your Hormones Work?
Emma Bryce explains how hormones regulate everything from your sleep to the rhythm of your beating heart, exerting its influence over each and every one of your cells.
CK-12 Foundation
Ck 12: Life Science: Plant Hormones
[Free Registration/Login may be required to access all resource tools.] Plants may not move, but that does not mean they don't respond to their environment. Plants can sense gravity, light, touch, and seasonal changes. Learn more about...
BiologyWise
Biology Wise: Plant Hormones and Their Functions
Describes five different types of hormones that regulate plant processes - auxins, cytokinins, ethylene, abscisic acid, and gibberellins.
Ohio State University
The Ohio State University: Plant Hormones
Page offers an explanation of plant hormones, including auxin and ethylene.
CK-12 Foundation
Ck 12: Life Science: 7.12 Plant Hormones
Understand how plant hormones allow plants to live in their environment.
Khan Academy
Khan Academy: Investigating Families With Hormone Deficiencies
Read the passage "Investigating Families With Hormone Deficiencies" and complete the related five-question quiz.
Biology Pages
Kimball's Biology Pages: Insect Hormones
An online biology textbook page on insect hormones. Full of labeled, color diagrams for better understanding.
Khan Academy
Khan Academy: Syndrome of Inappropriate Antidiuretic Hormone
Read the passage Syndrome of Inappropriate Antidiuretic Hormone and answer the five-question quiz that follows.
BBC
Bbc: Gcse Bitesize: Plant Hormones
Plants produce hormones and respond to external stimuli, growing towards sources of water and light, which they need to survive. Read about tropisms and auxins that are used to control growth in plants. There is a quiz at the end.
Khan Academy
Khan Academy: Hormonal Control of Weight Loss
Multiple choice practice questions over hormonal control of weight loss relating to the gastrointestinal system. Passage 1.
Khan Academy
Khan Academy: Measuring Hormone Levels
Practice questions over measuring hormone levels.
Khan Academy
Khan Academy: Regulation of Growth Hormone
Read a passage on the regulation of growth hormones and answer the follow-up questions.
Estrella Mountain Community College
Online Biology Book: Plant Hormones, Nutrition, and Transport
Understand plant processes including plant hormones, nutrition, and transport in this online, college-level textbook.
Colorado State University
Colorado State University: Thyroid Hormones
A study suggesting that the presence of thyroid hormones in pregnancy has a dramatic effect on the development of the fetal brain.
McGraw Hill
Glencoe Biology: Plant Hormones and Responses: Self Check Quiz
This multiple-choice quiz on plant hormones and responses allows students to get hints for each question and check their answers after submitting.
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