Plant hormones play crucial roles in regulating growth, development, and...
Biology283 views·Updated 1 Sept 2026·4 pagesHow Plants Move and Grow: Auxins, Gibberellins, and Ethene Magic!
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1
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Key Plant Hormones
The second page introduces the three essential plant hormones that form the core of plant growth regulation. These hormones work together to coordinate various aspects of plant development.
Highlight: The three crucial plant hormones are Auxin, Gibberellins, and Ethene.
Vocabulary: These hormones are also known as plant growth regulators (PGRs).
2
of 4
Auxin Functions and Responses
This page details the complex roles of auxins in plant growth responses. The hormone's involvement in both phototropism and gravitropism demonstrates its versatility in plant development.
Definition: Phototropism is the growth response of plants to light direction, while gravitropism is the response to gravity.
Example: When a plant shoot bends toward sunlight, it's demonstrating positive phototropism due to auxin redistribution.
Highlight: Auxin has opposite effects in shoots and roots - promoting growth in shoots while inhibiting growth in roots.
3
of 4
Gibberellins and Ethene Functions
The final page explores the roles of gibberellins and ethene in plant development and fruit ripening processes.
Definition: Gibberellins are growth-promoting hormones that regulate various developmental processes including stem elongation and seed germination.
Example: Ethene's role in fruit ripening is commercially utilized to ripen fruits like bananas after harvesting.
Highlight: Gibberellins are particularly concentrated in seeds and young leaves, while ethene is a gas that can affect neighboring plants.
Quote: "Ethene is used in the food industry to trigger the process of ripening, after the fruit have been picked, and before they reach the shop shelf."
4
of 4
Introduction to Plant Hormones
This introductory page establishes the foundation for understanding plant hormones and their various functions in plant growth and development. Plant hormones are chemical messengers that regulate numerous aspects of plant life cycles.
Definition: Plant hormones are naturally occurring compounds that regulate plant growth and development at extremely low concentrations.
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Biology283 views·Updated 1 Sept 2026·4 pagesHow Plants Move and Grow: Auxins, Gibberellins, and Ethene Magic!
Z
Zoë@zoe_lewis
Plant hormones play crucial roles in regulating growth, development, and responses to environmental stimuli. Auxin phototropism and gravitropism in plants, Role of gibberellins in plant growth and development, and Ethene hormone function in fruit ripening processare key...
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Key Plant Hormones
The second page introduces the three essential plant hormones that form the core of plant growth regulation. These hormones work together to coordinate various aspects of plant development.
Highlight: The three crucial plant hormones are Auxin, Gibberellins, and Ethene.
Vocabulary: These hormones are also known as plant growth regulators (PGRs).
2
of 4Sign up to see the content. It's free!
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Auxin Functions and Responses
This page details the complex roles of auxins in plant growth responses. The hormone's involvement in both phototropism and gravitropism demonstrates its versatility in plant development.
Definition: Phototropism is the growth response of plants to light direction, while gravitropism is the response to gravity.
Example: When a plant shoot bends toward sunlight, it's demonstrating positive phototropism due to auxin redistribution.
Highlight: Auxin has opposite effects in shoots and roots - promoting growth in shoots while inhibiting growth in roots.
3
of 4Sign up to see the content. It's free!
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Gibberellins and Ethene Functions
The final page explores the roles of gibberellins and ethene in plant development and fruit ripening processes.
Definition: Gibberellins are growth-promoting hormones that regulate various developmental processes including stem elongation and seed germination.
Example: Ethene's role in fruit ripening is commercially utilized to ripen fruits like bananas after harvesting.
Highlight: Gibberellins are particularly concentrated in seeds and young leaves, while ethene is a gas that can affect neighboring plants.
Quote: "Ethene is used in the food industry to trigger the process of ripening, after the fruit have been picked, and before they reach the shop shelf."
4
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Introduction to Plant Hormones
This introductory page establishes the foundation for understanding plant hormones and their various functions in plant growth and development. Plant hormones are chemical messengers that regulate numerous aspects of plant life cycles.
Definition: Plant hormones are naturally occurring compounds that regulate plant growth and development at extremely low concentrations.
We thought you’d never ask...
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
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