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.
The Association of the British Pharmaceutical Industry
Abpi: Hormones and Their Effects
A complete, student-led lesson on the endocrine system. Students work their way through illustrated and animated tutorials, and answer review questions along the way. There is a self-checking quiz at the end of the lesson.
Estrella Mountain Community College
Estrella Mountain Community College: The Endocrine System
Easy-to-understand notes and large graphics on the endocrine system include the evolution of the endocrine system and feedback cycles. Hormones and the nervous system are also discussed.
OpenStax
Open Stax: Anatomy & Physiology: An Overview of the Endocrine System
Find out about the types of intercellular communication, their importance, mechanisms, and effects. Then continue on to the next sections to learn about hormones, the different endocrine glands, the organs with secondary endocrine...
OpenStax
Open Stax: Anatomy & Physiology: Endocrine Regulation of Kidney Function
Learn how several hormones have specific, important roles in regulating kidney function. Find out how they act to stimulate or inhibit blood flow.
BioMan Biology
Bio Man Biology: Endocrine Ed
Game on vocabulary and functions of the endocrine system. Covers hormones, feedback loops, adrenaline, melatonin, insulin, glucagon, and growth hormone. Includes multiple-choice quiz at end.
Other
Nrdc: 9 Ways to Avoid Hormone Disrupting Chemicals
Endocrine disruptors are in a wide range of consumer products. This article lists tips for how to protect yourself from this health hazard.
OpenStax
Open Stax: Anatomy & Physiology: The Pituitary Gland and Hypothalamus
Learn about the hormones released by the pituitary gland, their target cells, and their principal actions, as well as the structure and function of the hypothalamus.
OpenStax
Open Stax: Anatomy & Physiology: The Thyroid Gland
Students learn about the location and anatomy of the thyroid gland as well as the hormones produced by the gland and how they affect body functions.
OpenStax
Open Stax: Anatomy & Physiology: Organs With Secondary Endocrine Functions
Students learn about the organs with a secondary endocrine function, the hormones they produce, and the effects on human physiology.
BBC
Bbc: Week of 7 28 14: Bedtime Light 'May Stop Cancer Drug Working'
Learn how light impacts human hormones during sleep, and how it may prevent a drug called Tamoxifen from working.
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